Scott v. Chipotle Mexican Grill, Inc. ( 2020 )


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  • 17-2208, 18-359
    Scott v. Chipotle Mexican Grill, Inc.
    UNITED STATES COURT OF APPEALS
    FOR THE SECOND CIRCUIT
    August Term 2018
    (Argued: February 13, 2019                      Decided: April 1, 2020)
    Nos. 17-2208-cv, 18-359-cv
    MAXCIMO SCOTT, on behalf of himself and others similarly situated, JAY
    FRANCIS ENSOR, CHRISTINE JEWEL GATELEY, KRYSTAL PARKER, STACY HIGGS,
    EUFEMIA JIMENEZ, MATHEW A. MEDINA,
    Plaintiffs-Appellants,
    v.
    CHIPOTLE MEXICAN GRILL, INC.,
    CHIPOTLE SERVICES, LLC,
    Defendants-Appellees. *
    ON APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE SOUTHERN DISTRICT OF NEW YORK
    Before:
    PARKER, CHIN, and SULLIVAN, Circuit Judges.
    *        An additional 516 plaintiffs are listed in the attached Appendix.
    Appeal from an opinion and order of the United States District
    Court for the Southern District of New York (Carter, J.) in this hybrid class and
    collective action brought on behalf of employees of a national restaurant chain
    who claim they were denied overtime wages because they were misclassified as
    exempt employees. The district court denied the employees' motion for class
    certification and granted the employer's motion to decertify the conditionally
    certified collective action. The employees appeal, contending that the district
    court erred in (1) denying class certification on the basis of a lack of
    predominance and superiority, and (2) granting decertification of the collective
    action on the ground that the named plaintiffs and opt-in plaintiffs are not
    similarly situated.
    AFFIRMED IN PART and VACATED IN PART.
    Judge SULLIVAN CONCURS IN PART and DISSENTS IN PART in a
    separate opinion.
    RACHEL BIEN (Justin M. Swartz, Melissa L. Stewart, on
    the brief), Outten & Golden LLP, New York, New
    York; Paolo Chagas Meireles, Shavitz Law Group,
    P.A., Boca Raton, Florida; Brian Scott Schaffer,
    Fitapelli & Schaffer, LLP, New York, New York,
    for Plaintiffs-Appellants.
    2
    RICHARD J. SIMMONS (Lisa M. Lewis, Brian D. Murphy,
    on the brief), Sheppard, Mullin, Richter &
    Hampton LLP, Los Angeles, California, New
    York, New York; Bruce A. Montoya, John Karl
    Shunk, Kendra N. Beckwith, Messner Reeves
    LLP, Denver, Colorado, for Defendants-Appellees.
    ___________
    CHIN, Circuit Judge:
    Plaintiffs-appellants are seven named plaintiffs representing six
    putative classes under Federal Rule of Civil Procedure 23(b)(3) (the "class
    plaintiffs"). Plaintiffs-appellants also sue on behalf of themselves and 516
    individuals who opted in to a conditionally certified collective action (the
    "collective plaintiffs") pursuant to the Fair Labor Standards Act (the "FLSA"), 29
    U.S.C. § 216(b). Class plaintiffs are current and former "Apprentices" of
    defendants-appellees Chipotle Mexican Grill, Inc. and Chipotle Services, LLC
    (together, "Chipotle") who allege that Chipotle misclassified them as exempt
    employees in violation of the labor laws in six states. Collective plaintiffs are
    current and former Chipotle Apprentices who allege that Chipotle misclassified
    them as exempt employees in violation of the FLSA. As a result of Chipotle's
    purported misclassification, plaintiffs-appellants contend that they were
    unlawfully denied overtime wages required under state and federal law.
    3
    On March 29, 2017, the district court denied class plaintiffs' class
    certification motion on the grounds that class plaintiffs failed to meet the
    predominance and superiority requirements of Rule 23(b)(3). Scott v. Chipotle
    Mexican Grill, Inc., No. 12-cv-8333, 
    2017 WL 1287512
    , at *3-8 (S.D.N.Y. Mar. 29,
    2017). In the same decision, the district court granted Chipotle's motion to
    decertify the collective action on the grounds that collective plaintiffs failed to
    establish that opt-in plaintiffs were "similarly situated" to the named plaintiffs as
    required for collective treatment under the FLSA.
    Id. at *
    8
    -9.
    
    On appeal, class plaintiffs principally argue that the district court
    relied on erroneous law and clearly erroneous facts in determining that common
    questions of law or fact did not predominate. Collective plaintiffs contend that
    the district court erred in decertifying the collective action because it relied on an
    erroneous view of the law -- namely, that the FLSA's "similarly situated" inquiry
    "mirrors" the Rule 23 analysis in rough proportion to the number plaintiffs who
    have chosen to opt-in. For the reasons set forth below, we affirm the district
    court's order denying class certification, vacate the district court's order
    decertifying the collective action, and remand for further proceedings.
    4
    BACKGROUND
    A.    The Facts
    Chipotle operates over 2,000 restaurants in the United States,
    serving burritos, tacos, salads, and more. To manage and operate its stores,
    Chipotle employs both salaried and hourly workers. There are three categories
    of salaried employees -- Restauranteurs, General Managers, and Apprentices --
    not all of whom are necessarily employed at each Chipotle location. Chipotle
    locations also hire hourly workers, namely Service Managers, Kitchen Managers,
    and crew. As of 2016, Apprentices earned a salary of between $38,000 and
    $51,500 and were eligible for benefits such as bonuses, paid vacation, insurance,
    and retirement plans.
    Chipotle describes the "principal responsibilities" of the Apprentice
    position as "[l]eading the restaurant team in successful day-to-day operations";
    "[a]cting as General Manager when General Manager is not present"; "[t]raining
    and developing the restaurant team"; "[e]suring that employees are paid
    properly, receive appropriate benefits, and are prepared for additional career
    opportunities"; "[i]dentifying talent, interviewing, and hiring new Crew";
    "[p]articipating in personnel decisions regarding the restaurant team"; "[w]riting
    5
    schedules that meet the needs of the business"; "[a]ssisting the General Manager
    in performing administrative duties including payroll, inventory, food ordering,
    proper cash handling, etc."; "[s]uccessfully communicating company
    changes/focus to the team"; "[b]uilding sales and managing the restaurant
    budget"; "[m]aintaining a clean restaurant with excellent quality food and
    customer service"; and "[m]aintaining cleaning and sanitation standards within
    the restaurant." J. App'x at 4246; see also
    id. at 4250.
    The parties dispute whether
    Apprentices are in training to become General Managers.
    In or around 2011, Chipotle hired a consultant to opine on the
    exempt status of Apprentices -- that is, whether Apprentices were entitled to
    overtime or were considered "executive" or "managerial" employees and were
    therefore exempt from state and federal overtime laws. After reviewing
    Chipotle's uniform job description and conducting interviews with Apprentices
    at various locations, the consultant concluded that the Apprentice position is
    uniformly exempt from state and federal overtime laws based on the “wage and
    hour” definition of an Executive. The consultant looked to the following range of
    tasks of Apprentices in making this determination: (1) hiring and firing, (2)
    training, (3) scheduling, (4) payroll processing, (5) writing and conducting
    6
    performance reviews, (6) documenting performance, (7) cash handling, (8)
    managing employees during manager's absence, and (9) communicating
    corporate changes. The consultant's report notes that although Apprentices
    assist with manual labor, the majority of Apprentice time is spent managing the
    day-to-day activities of the restaurant. Chipotle thereafter classified all
    Apprentices throughout the country (except those in California) as exempt from
    the overtime provisions of the FLSA and related state overtime laws based on
    their salary, their actual duties, and Chipotle's reasonable expectations regarding
    the duties performed.
    B.    Procedural History
    Plaintiff-appellant Maxcimo Scott filed the initial complaint in this
    case on November 15, 2011. Following a series of amendments to the pleadings
    joining additional plaintiffs and adding claims, on February 10, 2015, plaintiffs-
    appellants filed the operative third amended complaint, which alleges that
    Chipotle misclassified its Apprentice workers and denied them overtime pay in
    violation of the FLSA as well as state laws in Colorado, Illinois, Missouri, New
    York, North Carolina, and Washington. Class plaintiffs purport to represent six
    7
    classes totaling approximately 1,600 Apprentices 1 who worked at Chipotle
    locations in the six states. Collective plaintiffs consist of the seven named
    plaintiffs and 516 opt-in plaintiffs who affirmatively consented to joining the
    FLSA suit after the district court conditionally certified the collective action on
    June 30, 2013.
    On May 9, 2016, following several years of discovery -- including the
    taking of over 80 depositions and the submission of over 240 declarations --
    Chipotle moved to decertify the collective action on the grounds that the named
    plaintiffs are not similarly situated to the opt-in plaintiffs. That same day, class
    plaintiffs moved to certify six Rule 23(b)(3) classes corresponding to the six states
    in which the class representatives worked. On March 29, 2017, the district court
    issued an opinion and order denying class plaintiffs' motion for class certification
    and granting Chipotle's motion to decertify the collective action. See generally
    Scott, 
    2017 WL 1287512
    . As to the motion for class certification, the district court
    held that although class plaintiffs satisfied Rule 23(a)'s threshold requirements of
    numerosity, commonality, typicality, and adequacy, Scott, 
    2017 WL 1287512
    , at
    1      The approximate number of represented individuals are based on May 2016
    estimates generated by Chipotle's Compliance and Field People Support Director. This
    figure may have changed because the classes are defined to include Apprentices
    employed through "the date of final judgment."
    8
    *3, they failed to satisfy Rule 23(b)(3)'s requirements of predominance and
    superiority,
    id. at *4-8.
    According to the district court, class plaintiffs established
    commonality because "the question of whether Apprentices were misclassified as
    exempt employees is common to all class members [and] can be answered with
    common proof."
    Id. at *
    3. 
    The court based this determination on the fact that (1)
    "Chipotle uniformly classified all Apprentices as exempt," (2) "Chipotle has an
    expectation that the core duties of the apprentice is the same regardless of the
    market in which an Apprentice works," and (3) "Chipotle uses a single job
    description for all Apprentices that lists 'principal accountabilities.'"
    Id. The district
    court found these facts to be "unquestionably probative of whether an
    employee is properly classified as exempt."
    Id.
    (internal quotation
    marks
    omitted).
    Ultimately, however, the district court concluded that these common
    questions were outweighed by individualized ones surrounding each plaintiff's
    primary duty under Labor Department regulations.
    Id. at *
    4. 
    The district court
    summarized each of the named plaintiffs' testimony regarding their primary
    duty and found the testimony to be "internally inconsistent and distinguishable."
    Id. It also
    analyzed the testimony of the opt-in plaintiffs as to a number of the
    9
    relevant Labor Department criteria for determining exemptions -- involvement in
    personnel decisions, scheduling authority, employee supervision and training,
    and amount of time spent on managerial tasks -- and found that the testimony
    "rang dissonantly from the record," as some Apprentices recounted
    independently running their own stores while others testified to exercising very
    few, if any, managerial duties.
    Id. at *
    4-7. 
    Thus, while the "Apprentices' range of
    managerial tasks" and "range of manual labor tasks" were "similar," the district
    court concluded that the "disparate accounts from Apprentices" and the
    "individualized proof . . . needed to establish each class member's entitlement to
    relief" rendered class plaintiffs' claims ill-suited to the class action procedures of
    Rule 23(b)(3).
    Id. at *
    4, 
    8.
    With respect to Chipotle's motion to decertify the collective action,
    the district court considered whether named plaintiffs were "similarly situated"
    to the opt-in plaintiffs by considering the following factors: "(1) disparate factual
    and employment settings of the individual plaintiffs; (2) defenses available to
    defendants which appear to be individual to each plaintiff; and (3) fairness and
    procedural considerations counseling for or against collective action treatment."
    10
    Id. at *
    8 
    (citing Hernandez v. Fresh Diet, Inc., No. 12-cv-4339, 
    2014 WL 5039431
    , at
    *3 (S.D.N.Y. Sept. 29, 2014)). 2
    In analyzing the first factor -- disparate employment settings -- the
    district court noted that "[c]ourts have recognized that the 'similarly situated'
    analysis for purposes of the FLSA certification can be viewed, in some respects,
    as a sliding scale. In other words, the more opt-ins there are in the class, the
    more the analysis under § 216(b) will mirror the analysis under Rule 23."
    Id. (quoting Indergit
    v. Rite Aid Corp., 
    293 F.R.D. 632
    , 651 (S.D.N.Y. 2013)). The court
    then concluded that "Apprentices had vastly different levels and amounts of
    authority in exercising managerial tasks" and noted that "disparities in job
    duties" are "axiomatic considering that the 516 opt-in plaintiffs worked at 37
    states across Chipotle's nine geographic regions."
    Id. at *
    8
    -9. 
    The district court
    considered the second and third factors -- defenses and procedural fairness --
    together, and concluded that "it would be difficult for Chipotle to rely on
    'representative proof' while asserting its defenses."
    Id. at *
    9. Accordingly, the
    2      In doing so, the district court was applying the second step of the two-tier
    approach to determining whether named plaintiffs are similarly situated to op-in
    plaintiffs. See Glatt v. Fox Searchlight Pictures, Inc., 
    811 F.3d 528
    , 540 (2d Cir. 2016). See
    pp. 27-28 infra. The district court had applied step one when it conditionally certified
    the collective action on June 30, 2013.
    11
    district court held that the named plaintiffs were not similarly situated to opt-in
    plaintiffs and ordered the conditionally certified collective action to be
    decertified and the claims of the opt-in plaintiffs to be dismissed without
    prejudice.
    Id. at *
    9
    This appeal followed. We granted class plaintiffs leave to appeal the
    denial of class certification pursuant to Rule 23(f), and we granted collective
    plaintiffs leave to appeal pursuant to 28 U.S.C. § 1292(b).
    DISCUSSION
    We begin with an overview of hybrid FLSA and state overtime
    misclassification suits. We then discuss the district court's denial of class
    certification and decertification of the FLSA collective action in turn.
    I.    Hybrid Class and Collective Actions
    "Because FLSA and [state law] claims usually revolve around the
    same set of facts, plaintiffs frequently bring both types of claims together in a
    single action using the procedural mechanisms available under 29 U.S.C. § 216(b)
    to pursue the FLSA claims as a collective action and under Rule 23 to pursue the
    [state law] claims as a class action under the district court's supplemental
    12
    jurisdiction." Shahriar v. Smith & Wollensky Rest. Grp. Inc., 
    659 F.3d 234
    , 244 (2d
    Cir. 2011).
    In this hybrid class and collective action, plaintiffs claim that they
    worked overtime, they were legally entitled under state and federal law to
    overtime pay, and Chipotle denied them such payment. The crux of the dispute
    is whether plaintiffs were entitled to overtime under the FLSA and state labor
    laws. The answer to this question turns on whether Chipotle improperly
    classified plaintiffs as exempt employees under Labor Department guidelines
    and parallel state law, "which in turn will require the district court to decide a
    number of subsidiary questions," Myers v. Hertz Corp., 
    624 F.3d 537
    , 548 (2d Cir.
    2010) (internal quotation marks omitted), as discussed below.
    A.      The FLSA
    Under the FLSA, employers are required to pay employees who
    work over forty hours per week "not less than one and one-half times the regular
    rate at which [the employees are] employed" for those overtime hours. 29 U.S.C.
    § 207(a)(1). This requirement is subject to certain exemptions based on employee
    classification. As relevant here, the FLSA exempts from the overtime
    13
    requirement "employee[s] employed in a bona fide executive [or] administrative
    . . . capacity." 29 U.S.C. § 213(a)(1).
    Administrative regulations classify employees as "executive" if (1)
    they are "[c]ompensated on a salary or fee basis," (2) their "primary duty is
    management of the enterprise . . . or of a customarily recognized department or
    subdivision thereof," (3) they "customarily and regularly direct[] the work of two
    or more other employees," and (4) they "ha[ve] the authority to hire or fire other
    employees or" if their "suggestions and recommendations" on personnel
    decisions "are given particular weight." 29 C.F.R. § 541.100(a). The second
    element -- whether an employee's primary duty is managerial in nature --
    generally requires consideration of activities such as
    interviewing, selecting, and training of employees; setting
    and adjusting their rates of pay and hours of work; directing
    the work of employees; maintaining production or sales
    records for use in supervision or control; appraising
    employees' productivity and efficiency for the purpose of
    recommending promotions or other changes in status;
    handling employee complaints and grievances; disciplining
    employees; planning the work; determining the techniques
    to be used; apportioning the work among the employees;
    determining the type of materials, supplies, machinery,
    equipment or tools to be used or merchandise to be bought,
    stocked and sold; controlling the flow and distribution of
    14
    materials or merchandise and supplies; providing for the
    safety and security of the employees or the property;
    planning and controlling the budget; and monitoring or
    implementing legal compliance measures.
    29 C.F.R. § 541.102.
    Regulations classify employees as "administrative" if (1) they are
    "[c]ompensated on a salary basis," (2) their "primary duty is the performance of
    office or non-manual work directly related to the management or general
    business operations of the employer or the employer's customers," and (3) their
    "primary duty includes the exercise of discretion and independent judgment
    with respect to matters of significance." 29 C.F.R. § 541.200(a). The second
    element -- whether the employee's primary duty is directly related to
    management -- requires consideration of whether the employee "perform[s]
    work directly related to assisting with the running or servicing of the business, as
    distinguished . . . from working on a manufacturing production line or selling a
    product in a retail or service establishment." 29 C.F.R. § 541.201(a).
    The applicability of both exemptions turns on the "primary duty" of
    an employee. See 29. C.F.R. § 541.2 (providing that "[t]he exempt or nonexempt
    status of any particular employee must be determined on the basis of whether
    the employee's salary and duties meet the requirements of the regulations"
    15
    defining executive and administrative employees). The regulations make clear
    that these questions "should be resolved by examining the employees' actual job
    characteristics and duties." 
    Myers, 624 F.3d at 548
    ; see also 29 C.F.R. § 541.700(a)
    (providing that determining an employee's "primary duty" requires analysis of
    "all the facts in a particular case," looking to the "principal, main, major or most
    important duty that the employee performs"). Among other things, courts are to
    consider the following factors in assessing an employee's primary duty:
    the relative importance of the exempt duties as compared
    with other types of duties; the amount of time spent
    performing exempt work; the employee's relative freedom
    from direct supervision; and the relationship between the
    employee's salary and the wages paid to other employees for
    the kind of nonexempt work performed by the employee.
    29 C.F.R. § 541.700(a). Although the amount of time spent performing exempt
    work is not dispositive, it "can be a useful guide."
    Id. § 541.700(b).
    "Thus,
    employees who spend more than 50 percent of their time performing exempt
    work will generally satisfy the primary duty requirement."
    Id. "The exemption
    question under the FLSA is a mixed question of law
    and fact. The question of how the employees spent their working time is a
    question of fact. The question of whether their particular activities excluded
    them from the overtime benefits of the FLSA is a question of law." Pippins v.
    16
    KPMG, LLP, 
    759 F.3d 235
    , 239 (2d Cir. 2014) (quoting Ramos v. Baldor Specialty
    Foods, Inc., 
    687 F.3d 554
    , 559 (2d Cir. 2012)).
    B.     State Overtime Law
    State exemption criteria in the six states implicated in the class
    plaintiffs' claims largely track the FLSA. 3 Indeed, Chipotle conceded below that
    state "executive/administrative exemption[s] . . . , unless specifically noted,
    parallel the analysis set forth under the FLSA." Dkt. No. 1100, at 22. There are,
    however, some minor differences. As Chipotle notes, whereas under federal law
    the amount of time an employee spends performing an activity is merely "a
    useful guide" to determining that employee's primary duty, see 29 C.F.R.
    § 541.700(b), Colorado and Washington have strict percentage limitations
    governing how much time an employee can spend on non-exempt activities and
    still properly be considered an exempt employee, see 7 Colo. Code Regs. § 1103-
    1.5(b) (providing that overtime law only applies only if the employee spends "a
    minimum of 50% of the workweek in duties directly related to supervision");
    Wash. Admin. Code § 296-128-510(5) (providing that overtime law applies only if
    3      See N.Y. Comp. Codes R. & Regs. Tit. 12, §§ 146-1.4, 146-1.6; N.Y. Lab. Law § 195
    (New York); Mo. Rev. Stat. § 290.527.1 (Missouri); 820 Ill. Comp. Stat. § 105/4a (Illinois);
    N.C. Gen. Stat. § 95-25.22(a1); 13 N.C. Admin. Code § 12.080 (North Carolina); see also
    Dejesus v. HF Mgmt. Servs., LLC, 
    726 F.3d 85
    , 89 n.5 (2d Cir. 2013).
    17
    the employee "does not devote as much as 40% . . . of his hours worked . . . to
    activities which are not directly and closely related" to the performance of
    managerial work). Thus, the exemption analysis under state law is largely the
    same as the analysis under the FLSA, subject to these minor caveats.
    II.   Denial of Class Certification
    Class plaintiffs argue that the district court, in concluding that they
    failed to establish predominance and superiority, committed legal error and
    relied on clearly erroneous facts. For the reasons that follow, we conclude that
    the district court did not commit reversible error.
    A.     Standard of Review
    We review a district court order denying class certification for abuse
    of discretion as to the ultimate decision and as to each of the Rule 23
    requirements. 
    Myers, 624 F.3d at 547
    . We review legal conclusions de novo and
    factual findings for clear error.
    Id. This standard
    means that the district court "'is
    empowered to make a decision -- of its choosing -- that falls within a range of
    permissible decisions,' and we will only find 'abuse' when the district court's
    decision 'rests on an error of law or a clearly erroneous factual finding, or its
    decision cannot be located within the range of permissible decisions.'"
    Id. 18 (alterations
    omitted) (quoting Zervos v. Verizon N.Y., Inc., 
    252 F.3d 163
    , 169 (2d
    Cir. 2001)).
    B.       Applicable Law
    Plaintiffs seeking certification of a Rule 23(b)(3) damages class action
    must first establish numerosity, commonality, typicality, and adequacy of
    representation, and then predominance of common questions of law or fact and
    the superiority of a class action over other procedures. Fed. R. Civ. P. 23(a),
    (b)(3). The "predominance" requirement of Rule 23(b)(3) "tests whether
    proposed classes are sufficiently cohesive to warrant adjudication by
    representation." Amchem Prods., Inc. v. Windsor, 
    521 U.S. 591
    , 623 (1997). The
    requirement is satisfied "if resolution of some of the legal or factual questions
    that qualify each class member's case as a genuine controversy can be achieved
    through generalized proof, and if these particular issues are more substantial
    than the issues subject only to individualized proof." Moore v. PaineWebber, Inc.,
    
    306 F.3d 1247
    , 1252 (2d Cir. 2002); see also 
    Myers, 624 F.3d at 547
    .
    A court examining predominance must assess (1) "the elements of
    the claims and defenses to be litigated," (2) "whether generalized evidence could
    be offered to prove those elements on a class-wide basis or whether
    19
    individualized proof will be needed to establish each class member's entitlement
    to relief," and (3) "whether the common issues can profitably be tried on a class[-]
    wide basis, or whether they will be overwhelmed by individual issues." Johnson
    v. Nextel Commc'ns Inc., 
    780 F.3d 128
    , 138 (2d Cir. 2015).
    The question whether employees are entitled to overtime under the
    FLSA is "a complex, disputed issue, and its resolution turns on exemption, which
    in turn will require the district court to decide a number of subsidiary questions
    involving whether plaintiffs fall within the Labor Department's criteria for
    'employees employed in a bona fide executive [or administrative] capacity.'"
    
    Myers, 624 F.3d at 548
    (quoting 29 U.S.C. § 213(a)(1)). "Significantly, the
    regulations make clear that these questions should be resolved by examining the
    employees' actual job characteristics and duties."
    Id. "Economies of
    time, effort,
    and expense in fully resolving each plaintiff's claim will only be served, and the
    predominance requirement satisfied, if the plaintiffs can show that some [of the
    subsidiary questions necessary to determining exemption] can be answered with
    respect to the members of the class as a whole through generalized proof and
    that those common issues are more substantial than individual ones."
    Id. at 549
    (internal quotation marks and citations omitted).
    20
    C.     Application
    Class plaintiffs argue that the district court's conclusion that
    predominance was not met was erroneous because the court (1) made clearly
    erroneous factual findings regarding the distinctions among class members, (2)
    rested its conclusion on an erroneous view of the law that common questions
    cannot predominate if some workers perform managerial tasks that others do not
    perform, and (3) failed to weigh the individualized evidence against the common
    evidence. We conclude that the district court did not rest its decision on an error
    of law or a clear error of fact. Nor did it abuse its discretion. Accordingly, we
    need not address class plaintiffs' superiority arguments. See 
    Myers, 624 F.3d at 548
    (noting the "need only [to] address the 'predominance' requirement" because
    the finding of a lack of predominance was not error).
    The district court began its predominance analysis by
    acknowledging that "Apprentices' range of managerial tasks such as employment
    decisions, scheduling, inventory, performance evaluations" and "range of manual
    labor tasks such as working the line, serving customers, prepping, grilling, and
    running the register" were "similar." Scott, 
    2017 WL 1287512
    , at *4 (emphasis
    added). Indeed, this finding, combined with Chipotle's uniform job description
    21
    and its uniform classification of Apprentices as exempt employees, formed the
    basis of the district court's conclusion that class plaintiffs had established
    commonality. See
    id. at *3.
    But the court went on to explain that although the
    range of tasks were largely the same across class plaintiffs, the primary duty
    performed by class plaintiffs -- the dispositive question of the exemption inquiry
    -- was not adequately similar.
    Id. at *
    4.
    
    The court analyzed the testimony of the named plaintiffs regarding
    their primary duty and found that the testimony was "internally inconsistent and
    distinguishable from one another."
    Id. at *
    4. 
    For example, whereas named
    plaintiffs Scott and Parker did not have any say in hiring and claimed no role in
    employee development or discipline, named plaintiffs Higgs and Medina made
    hiring and termination recommendations and trained employees.
    Id. at *
    5.
    The court also analyzed the testimony of putative class members
    regarding four key categories of the "primary duty" inquiry, "[n]otwithstanding
    the internally inconsistent testimony among the named Plaintiffs."
    Id. at *
    6. It
    concluded that the putative class members' testimony also "rang dissonantly
    from the record."
    Id. As to
    personnel decisions, one of the tasks considered
    managerial under Labor Department regulation, see 29 C.F.R. § 541.102, the
    22
    district court found that while "[m]any apprentices played a significant role in
    personnel decisions," others "testified that they had no involvement" in such
    decisions, Scott, 
    2017 WL 1287512
    , at *6. As to scheduling authority, also a task
    considered to be managerial under Labor Department guidelines, see 29 C.F.R.
    § 541.102, the district court found that while "[s]ome Apprentices prepared and
    disbursed schedules without . . . approval from higher management," others "did
    not perform this managerial task, because they did not believe they had the
    authority to do so," Scott, 
    2017 WL 1287512
    , at *6. The district court found similar
    inconsistencies across the testimony of the putative class members with respect
    to two other important consideration under the guidelines: employee
    supervision and training, and the amount of time spent on managerial tasks. See
    id. at *7-8.
    On the basis of these factual determinations, the district court
    concluded that despite the common questions of fact -- including Chipotle's
    blanket classification of Apprentices, the outside consultant's analysis concerning
    exemption, the uniform Apprentice job description, and Chipotle's expectation
    that Apprentices perform the same responsibility -- "[t]he disparate accounts
    from Apprentices prove[d] fatal to the predominance inquiry."
    Id. at *
    8
    . Thus,
    23
    the district court concluded that class plaintiffs failed to meet their burden of
    proving predominance.
    Class plaintiffs argue that this conclusion rested on clearly erroneous
    factual findings. We are not persuaded. Although nominally an argument about
    clearly erroneous facts, this assertion boils down to a disagreement with the
    district court's ultimate conclusion. We can discern no clearly erroneous facts
    relied upon in the district court's analysis; it based its legal conclusion on a fair
    interpretation of the facts after thoroughly parsing the voluminous record in the
    case. While reasonable minds could disagree, on the record before us we cannot
    say that the district court's factual findings were clearly erroneous or that its
    conclusion was outside the range of permissible decisions.
    Class plaintiffs also argue, in cursory fashion, that the district court
    committed legal error by (a) assuming that common questions cannot
    predominate if some workers perform managerial tasks that others do not
    perform and (b) failing to weigh the individualized evidence against the
    common evidence. We disagree that the district court committed such errors. It
    correctly cited the law of class certification and applied that law to the facts of the
    case. It concluded that predominance was not met only after weighing the
    24
    individualized issues against the common ones and concluding that the
    individualized issues proved "fatal" to the balancing. Scott, 
    2017 WL 1287512
    , at
    *8. Like class plaintiffs' argument that the district court clearly erred in its
    construction of the facts, these legal arguments are, in effect, an effort to couch
    class plaintiffs' disagreement with the district court's reasoned decision as an
    error of law. But, as discussed above, the district court's conclusion fell within
    the range of permissible decisions committed to its discretion.
    Accordingly, we affirm the district court's denial of class plaintiffs'
    motion to certify the proposed class actions.
    III.   Collective Action Decertification
    Collective plaintiffs principally argue that the district court
    committed legal error by improperly analogizing the standard for maintaining a
    collective action under the FLSA to Rule 23 procedure, and relying on that
    improper analogy in concluding that named plaintiffs and opt-in plaintiffs are
    not "similarly situated." For the reasons that follow, we agree.
    A.    Standard of Review
    We have not ruled on the appropriate standard of review to be
    applied to a district court's decertification of a conditionally certified collective
    25
    action. The parties agree, as do we, that "[l]ike the district court's certification
    determination pursuant to Rule 23," we review its decision to decertify an FLSA
    collective action for abuse of discretion. See Glatt v. Fox Searchlight Pictures, Inc.,
    
    811 F.3d 528
    , 539 (2d Cir. 2015). Thus, "we will only find 'abuse' when the district
    court's decision 'rests on an error of law or a clearly erroneous factual finding, or
    its decision cannot be located within the range of permissible decisions.'" 
    Myers, 624 F.3d at 547
    (alterations omitted) (quoting 
    Zervos, 252 F.3d at 169
    ). We review
    de novo the district court's selection and application of the legal standards that led
    to its conclusion to decertify. Parker v. Time Warner Entm't Co., 
    331 F.3d 13
    , 18
    (2d Cir. 2003) (discussing Rule 23 standard of review).
    B.     Applicable Law
    The FLSA provides that an action to recoup unpaid overtime wages
    may be maintained against any employer . . . by any one or
    more employees for and in behalf of himself or themselves
    and other employees similarly situated. No employee shall be a
    party plaintiff to any such action unless he gives his consent
    in writing to become such a party and such consent is filed
    in the court in which such action is brought.
    29 U.S.C. § 216(b) (emphasis added). The Supreme Court has characterized
    § 216(b) as a "joinder process." Genesis Healthcare Corp. v. Symczyk, 
    569 U.S. 66
    , 75
    n.1 (2013). Rather than providing for a mere procedural mechanism, as is the
    26
    case with Rule 23, § 216(b) establishes a "right . . . to bring an action by or on
    behalf of any employee, and [a] right of any employee to become a party plaintiff
    to any such action," so long as certain preconditions are met. 29 U.S.C. § 216(b)
    (emphasis added); see also Hoffman-La Roche Inc. v. Sperling, 
    493 U.S. 165
    , 173
    (1989) (noting that Congress gave employees the "right" to proceed collectively)
    One of the principal conditions to proceeding collectively under
    § 216(b) is that the named plaintiffs be "similarly situated" to the opt-in "party
    plaintiff[s]." See 29 U.S.C. § 216(b). Procedurally, we have endorsed a two-step
    process for certifying FLSA collective actions based on the "similarly situated"
    requirement:
    At step one, the district court permits a notice to be sent to
    potential opt-in plaintiffs if the named plaintiffs make a
    modest factual showing that they and others together were
    victims of a common policy or plan that violated the law. At
    step two, with the benefit of additional factual development,
    the district court determines whether the collective action
    may go forward by determining whether the opt-in plaintiffs
    are in fact similarly situated to the named plaintiffs.
    
    Glatt, 811 F.3d at 540
    (citing 
    Myers, 624 F.3d at 555
    ). Substantively, however, we
    have said little regarding what it means to be "similarly situated" and how
    district courts should analyze whether named and party plaintiffs are so situated,
    particularly at Step Two.
    27
    1.     The "Similarly Situated" Requirement
    The FLSA does not define the term "similarly situated." The
    Supreme Court, analyzing the same "similarly situated" standard of § 216(b) that
    is incorporated into both the FLSA and the Age Discrimination in Employment
    Act (the "ADEA"), has held that Congress's goal in granting employees the right
    to proceed as a collective was to provide them "the advantage of lower
    individual costs to vindicate rights by the pooling of resources." Hoffmann-La
    Roche 
    Inc., 493 U.S. at 170
    . This results in the "efficient resolution in one
    proceeding of common issues of law and fact arising from the same alleged"
    FLSA violation. See
    id. This result
    -- the efficient resolution in one proceeding of common
    issues of law and fact arising from the same alleged FLSA violation -- can only be
    achieved to the extent that named plaintiffs and opt-in plaintiffs share one or
    more issues of law or fact that are material to the disposition of their FLSA
    claims. Thus, to be "similarly situated" means that named plaintiffs and opt-in
    plaintiffs are alike with regard to some material aspect of their litigation. See
    Campbell v. City of Los Angeles, 
    903 F.3d 1090
    , 1114 (9th Cir. 2018). That is, party
    plaintiffs are similarly situated, and may proceed in a collective, to the extent
    28
    they share a similar issue of law or fact material to the disposition of their FLSA
    claims. 4 It follows that if named plaintiffs and party plaintiffs share legal or
    factual similarities material to the disposition of their claims, "dissimilarities in
    other respects should not defeat collective treatment."
    Id. If the
    opt-in plaintiffs
    are similar to the named plaintiffs in some respects material to the disposition of
    their claims, collective treatment may be to that extent appropriate, as it may to
    that extent facilitate the collective litigation of the party plaintiffs' claims. 5
    This similarly situated standard is consistent with that endorsed by
    our sister circuits as well as district courts within this circuit. See, e.g., 
    Campbell, 903 F.3d at 1117
    (holding that, at Step Two, "[p]arty plaintiffs are similarly
    situated, and may proceed in a collective, to the extent they share a similar issue
    of law or fact material to the disposition of their FLSA claims"); Halle v. W. Penn
    4      In contending that we have "equat[ed] 'similarly situated' with 'any similarity,'"
    Dissent at 2, the Dissent criticizes a standard that -- although helpful to the critique -- is
    nowhere to be found in our text. As clearly set forth above, we do not hold that the
    named plaintiffs and opt-in plaintiffs are "similarly situated" for purposes of a collective
    action under 29 U.S.C. § 216(b) when they share "any similarity"; rather, we hold that
    the standard is met when there is similarity with respect to "an issue of law or fact
    material to the disposition of their FLSA claim." Contrary to the Dissent's assertions,
    the standard established here is meaningfully circumscribed.
    5      District courts are well equipped to manage cases in this way. For example, Rule
    42 provides for the possibility of partial consolidation for trial, to the extent separate
    actions involve common questions of law or fact. Fed. R. Civ. P. 42(a)(1).
    29
    Allegheny Health Sys. Inc., 
    842 F.3d 215
    , 226 (3d Cir. 2016) (noting that, at Step
    Two, "[b]eing 'similarly situated' means that one is subjected to some common
    employer practice that, if proved, would help demonstrate a violation of the
    FLSA" (internal quotation marks omitted)); McGlone v. Contract Callers, Inc., 49 F.
    Supp. 3d 364, 367 (S.D.N.Y. 2014) (noting that, at Step Two, named and opt-in
    plaintiffs are similarly situated to the extent they "were common victims of a
    FLSA violation pursuant to a systematically-applied company policy or practice
    such that there exist common questions of law and fact that justify
    representational litigation" (quoting Pefanis v. Westway Diner, Inc., No. 08-cv-
    7813, 
    2010 WL 3564426
    , at *4 (S.D.N.Y. Sept. 7, 2010)); see also Newberg on Class
    Actions § 23:39 (5th ed. 2017) (noting that under § 216(b), the plaintiffs must
    demonstrate that they have all been "subjected to some common employer
    practice that, if proved, would help demonstrate a violation of the FLSA"). 6
    6       The Dissent goes to great lengths to distinguish these cases and argue that the
    standard we set forth today is "newly minted." Dissent at 1. But providing clarity is not
    making something new. The standard we adopt here is plainly compelled by the
    statutory text and Supreme Court precedent and has been endorsed by courts outside of
    this circuit along with lower courts within this Circuit. In selectively quoting language
    from these opinions to argue that they nonetheless employ elements of the ad hoc test,
    see Dissent at 4-5, the Dissent only further underscores the absence of a clear standard,
    and the need for clear guidance from this Court.
    30
    2.     The "Ad Hoc" Approach
    The majority of courts in this Circuit, including the district court
    below, employ what has been termed an "ad hoc" approach to the similarly
    situated inquiry at Step Two. 7 Under this flexible approach, courts consider the
    "(1) disparate factual and employment settings of the individual plaintiffs; (2)
    defenses available to defendants which appear to be individual to each plaintiff;
    and (3) fairness and procedural considerations counseling for or against
    collective action treatment." See, e.g., Buehlman v. Ide Pontiac, Inc., 
    345 F. Supp. 3d 305
    , 313 (W.D.N.Y. 2018). Thus, rather than considering the ways in which the
    opt-in plaintiffs are similar in ways material to the disposition of their FLSA
    claims, district courts employing the ad hoc factors consider the ways in which
    the plaintiffs are factually disparate and the defenses are individualized.
    We question whether the ad hoc approach is consistent with the
    notion that party plaintiffs are similarly situated, and may proceed in a
    collective, to the extent they share a similar issue of law or fact material to the
    7      The ad hoc approach appears to have originated in Lusardi v. Xerox Corp., 
    118 F.R.D. 351
    (D.N.J. 1987), in the context of an ADEA claim. There, the district court
    considered collective plaintiffs' "disparate employment situations"; defendant's
    "defenses and the applicability of the defenses to the instant facts"; and, more generally,
    "considerations of fairness [and] efficiency" in concluding that collective plaintiffs were
    not similarly situated at Step Two.
    Id. at 361-72.
                                                31
    disposition of their FLSA claims. First, it is abstract in a way that "risks losing
    sight of the statute underlying it" by "tend[ing] to explain what the term
    'similarly situated' does not mean [rather than] what it does" mean. 
    Campbell, 903 F.3d at 1114
    . Second, its "open-ended inquiry into the procedural benefits of
    collective action invites courts to import, through a back door, requirements with
    no application to the FLSA," like Rule 23(a)'s requirements of adequacy and
    typicality and Rule 23(b)(3) requirements of superiority and predominance.
    Id. at 1115.
    This flaw undermines what is supposed to be one of the chief advantages
    of the ad hoc approach, that "it is not tied to the Rule 23 standards." Thiessen v.
    Gen. Electric Capital Corp., 
    267 F.3d 1095
    , 1105 (10th Cir. 2001); accord Morgan v.
    Family Dollar Stores, Inc., 
    551 F.3d 1233
    , 1260 n.38 (11th Cir. 2008) (citing cases);
    Scott, 
    2017 WL 1287512
    , at *8 (employing the ad hoc approach "[t]o avoid
    conflating § 216(b) collective certification with Rule 23"). Indeed, as discussed
    below, the district court's ad hoc analysis in this case suffered from this very
    flaw. It imported through the back door "requirements with no application to
    the FLSA" -- namely, that because there were a relatively large number of opt-in
    plaintiffs, the "similarly situated" inquiry "mirrored" the requirements of Rule 23.
    32
    See infra Part III.C. We discuss this "sliding scale" analogy to Rule 23 in more
    detail.
    3.     The "Sliding Scale" Analogy
    Some district courts in this circuit, including the district court below,
    have grafted onto the ad hoc approach additional considerations. One such
    consideration is what collective plaintiffs describe as a "sliding scale" analogy,
    because the district courts employing the analogy reason that "[t]he similarly
    situated analysis can be viewed, in some respects, as a sliding scale." Gardner v.
    W. Beef Props., Inc., No. 7-cv-2345, 
    2013 WL 1629299
    , at *4, 6 (E.D.N.Y. Mar. 25,
    2013). The analogy is straightforward: "The more opt-ins there are in the class,
    the more the analysis under § 216(b) will mirror the analysis under Rule 23."
    Id. at *
    6. As a result, the court will import the more rigorous requirements of Rule
    23 into the similarly situated inquiry in rough proportion to the number
    plaintiffs who have chosen to opt-in. In so doing, the courts relying on this
    analogy conflate the requirements for class certification under Rule 23 with the
    requirements to proceed as a collective under § 216(b). 8
    8       See, e.g., Mendez v. U.S. Nonwovens Corp., No. 12-5583, 
    2016 WL 1306551
    , at *4
    (E.D.N.Y. Mar. 31, 2016) (noting that "[a]lthough the standard for establishing that the
    collective members are similarly situated under the FLSA is less stringent than the Rule
    23 commonality standard, courts in this district have noted that these two standards are
    33
    This has led, in turn, to "courts assessing the predominance
    requirement . . . almost always reach[ing] the same conclusion about whether
    proceeding collectively is appropriate." Whilliam C. Jhaveri-Weeks & Austin
    Webbert, Class Actions Under Rule 23 and Collective Actions Under the Fair Labor
    Standards Act, 23 Geo. J. on Poverty L. & Pol'y 233, 264 (2016); see also Ruiz v.
    CitiBank, N.A., 
    93 F. Supp. 3d 279
    , 298-99 (S.D.N.Y. 2015) ("[I]t is not mere
    coincidence that courts facing parallel motions to decertify an FLSA collective
    action under Section 216(b) and to certify a class action under Rule 23 have
    tended to allow either both actions or neither to proceed on a collective basis.").
    For the reasons discussed below, we hold that analogies to Rule 23,
    including the sliding scale analogy, are inconsistent with the language of § 216(b)
    and that the question of whether plaintiffs may proceed as a collective under the
    FLSA is to be analyzed under the separate and independent requirements of
    § 216(b).
    functionally similar"); Ruiz v. CitiBank, N.A., 
    93 F. Supp. 3d 279
    , 298-99 (S.D.N.Y. 2015)
    (noting the "harmony of animating principles" underlying collective actions under
    § 216(b) and class actions proceeding under Rule 23); Indergit v. Rite Aid Corp., 
    293 F.R.D. 632
    , 651 (S.D.N.Y. 2013) (noting that although "conditional certification,
    decertification, and Rule 23 class certification are subject to disparate legal standards,"
    courts nonetheless "have recognized that the 'similarly situated' analysis for purposes of
    FLSA certification can be viewed, in some respects, as a sliding scale").
    34
    First and foremost, it is already well established that the FLSA's
    "similarly situated" requirement is "independent of, and unrelated to" Rule 23's
    requirements, Kern v. Siemens Corp., 
    393 F.3d 120
    , 128 (2d Cir. 2004), and that it is
    "quite distinct" from "the much higher threshold of demonstrating that common
    questions of law and fact will 'predominate' for Rule 23 purposes," 
    Myers, 624 F.3d at 555
    -56. Nearly every circuit to consider the relationship between the
    modern Rule 23 and § 216(b) has reached the same conclusion. See 
    Campbell, 903 F.3d at 1111
    (holding that § 216(b) analogies to Rule 23 "lack[] support in either
    the FLSA or the Federal Rules of Civil Procedure"); Calderone v. Scott, 
    838 F.3d 1101
    , 1104 (11th Cir. 2016) (describing Rule 23 as "more demanding" than
    § 216(b)); O'Brien v. Ed Connelly Enters., Inc., 
    575 F.3d 567
    , 584-85 (6th Cir. 2009)
    (describing Rule 23 as "a more stringent standard" than § 216(b)); Thiessen v. Gen.
    Electric Capital Corp., 
    267 F.3d 1095
    , 1105 (10th Cir. 2001) ("Congress clearly chose
    not to have the Rule 23 standards apply to [collective actions], and instead
    adopted the 'similarly situated' standard. To now interpret this 'similarly
    situated' standard by simply incorporating the requirements of Rule 23 . . .
    would effectively ignore Congress' directive."); LaChapelle v. Owens-Illinois, Inc.,
    
    513 F.2d 286
    , 289 (5th Cir. 1975) (describing actions under § 216(b) and Rule 23 as
    35
    "mutually exclusive and irreconcilable"); see also Lusardi v. Lechner, 
    855 F.2d 1062
    ,
    1078 (3d Cir. 1988). But see Espenscheid v. DirectSat USA, LLC, 
    705 F.3d 770
    , 772
    (7th Cir. 2013) (noting that "the provisions of Rule 23 are intended to promote
    efficiency . . . , and in that regard are as relevant to collective actions as to class
    actions" because "there isn't a good reason to have different standards for the
    certification of the two different types of action[s]").
    This conclusion is supported by the language and structure of
    § 216(b) and the modern Rule 23, which bear little resemblance to each other.
    Compare 29 U.S.C. § 216(b), with Fed. R. Civ. P. 23. Under § 216(b) of the FLSA,
    employees have a right to maintain a collective action "for and in behalf of . . .
    themselves and other employees similarly situated." Section 216(b) has nothing
    comparable to Rule 23(b)(3)'s requirements of predominance or superiority. And
    Rule 23's requirements of adequacy and typicality are intended to protect the due
    process rights of absent class members, which is not a consideration in a
    nonrepresentative action such as a collective action under § 216(b). See Phillips
    Petroleum Co. v. Shutts, 
    472 U.S. 797
    , 811-12 (1985); see also 
    Campbell, 903 F.3d at 1112
    . Indeed, Congress amended § 216(b) in 1947 expressly to put an end to
    representational litigation in the context of actions proceeding under §216(b), and
    36
    at the same time required that workers affirmatively opt-in by filing written
    consent as a condition to proceeding as a collective. Compare Fair Labor
    Standards Act of 1938, ch. 676, 52 Stat. 1060, 1069 (1938) (codified at 29 U.S.C.
    § 216(b)) (providing that employees proceeding under § 216(b) may "designate
    an agent or representative to maintain such action for and in behalf of all
    employees similarly situated"), with Portal to Portal Act of 1947, Pub. L. No. 80-
    49, 61 Stat. 84, 87 (1947) (codified at 29 U.S.C. § 216(b) (1946 Supp. II)) (banning
    representative actions and providing that "[n]o employee shall be a party
    plaintiff to any such action unless he gives consent in writing to become such a
    party and such consent is filed in the court in which such action is brought").
    In 1966, Rule 23 was amended to resemble its modern form,
    including for the first time Rule 23(a)'s requirements of commonality, typicality,
    numerosity, and adequacy, and Rule 23(b)(3)'s requirements of predominance
    and superiority. Fed. R. Civ. P. 23 (1966). Along with these revisions, the
    drafters also omitted the opt-in requirement contained in the former "spurious"
    class action device and replaced it with Rule 23(b)(3)'s opt-out requirement.
    Id. The opt-out
    requirement of the modern Rule 23(b)(3) directly conflicts with the
    express opt-in requirement of § 216(b). Accordingly, the drafters of the 1966
    37
    revisions explicitly noted that "the present provisions of [§ 216(b)] are not
    intended to be affected." Fed. R. Civ. P. 23 advisory committee's notes to 1966
    amendment; see also Knepper v. Rite Aid Corp., 
    675 F.3d 249
    , 257 (3d Cir. 2012).
    Moreover, Rule 23 and § 216(b) serve fundamentally different
    purposes. Rule 23 provides a general procedural mechanism for the resolution
    of claims on a class-wide basis subject to the sound discretion of the district
    court. See Fed. R. Civ. P. 23. Section 216(b), by contrast, is tailored specifically to
    vindicating federal labor rights, and where the conditions of § 216(b) are met,
    employees have a substantive "right" to proceed as a collective, a right that does
    not exist under Rule 23. See 29 U.S.C. § 216(b); see also Hoffman-La 
    Roche, 493 U.S. at 173
    ; Monroe v. FTS USA, LLC, 
    860 F.3d 389
    , 396–97 (6th Cir. 2017); 
    O’Brien, 575 F.3d at 586
    .
    We conclude by noting that "the FLSA not only imposes a lower bar
    than Rule 23, it imposes a bar lower in some sense even than Rules 20 and 42,
    which set forth the relatively loose requirements for permissive joinder and
    consolidation at trial." 
    Campbell, 903 F.3d at 1112
    . "Whereas [Federal Rules of
    Civil Procedure] 20 and 42 allow district courts discretion in granting joinder or
    consolidation, the FLSA, which declares a right to proceed collectively on
    38
    satisfaction of certain conditions, does not." Id.; see also 
    O’Brien, 575 F.3d at 584
    -
    85; 
    Grayson, 79 F.3d at 1095-96
    ; 
    Lusardi, 855 F.2d at 1078
    . Furthermore, joinder
    under Rule 20 requires, in addition to a common question of law or fact, that the
    plaintiffs assert a right to relief arising from "the same transaction[ ] [or]
    occurrence[]." Fed. R. Civ. P. 20(a)(1)(A). No such condition exists in the text of
    the FLSA. See 29 U.S.C. § 216(b); see also 
    Campbell, 903 F.3d at 1112
    .
    For these reasons, we hold that the requirements for certifying a
    class under Rule 23 are unrelated to and more stringent than the requirements
    for "similarly situated" employees to proceed in a collective action under
    § 216(b). Accordingly, it is error for courts to equate the requirements of § 216(b)
    with those of Rule 23 in assessing whether named plaintiffs are "similarly
    situated" to opt-in plaintiffs under the FLSA.
    C.     Application
    Collective plaintiffs principally argue that the district court
    committed legal error in employing the "sliding scale" analogy to Rule 23 as it
    improperly conflated § 216(b) with Rule 23 and that rule's more stringent
    requirements. We agree.
    39
    After citing to the two-step approach endorsed by this Court in
    Myers, the district court proceeded to analyze whether collective plaintiffs were
    similarly situated using the ad hoc factors. Scott, 
    2017 WL 1287512
    , at *8. In its
    discussion of the ad hoc factors, the district court noted that their use is intended
    "[t]o avoid conflating § 216(b) collective certification with Rule 23."
    Id. Despite this
    disclaimer, however, in the very next sentence of the
    opinion the district court did just that -- conflated § 216(b) with Rule 23 -- in
    analyzing the first ad hoc factor. The district court began its discussion of
    collective plaintiffs' disparate employment settings by noting that "[c]ourts have
    recognized that the 'similarly situated' analysis for purposes of the FLSA
    certification can be viewed, in some respects, as a sliding scale. In other words,
    the more opt-ins there are in the class, the more the analysis under § 216(b) will
    mirror the analysis under Rule 23."
    Id. (quoting Indergit
    , 293 FR.D. at 651). In
    doing so, the district court imported through the back door of this ad hoc
    approach the more stringent requirements of Rule 23, which have no application
    to the FLSA.
    The district court assumed that the size of the collective required a
    heightened level of scrutiny mirroring Rule 23, which necessarily weighed in
    40
    favor of decertification -- particularly because the district court had concluded
    earlier in the same opinion that class plaintiffs failed to establish predominance
    under Rule 23. Indeed, after invoking the "sliding scale" analogy, the court
    proceeded to reference its conclusion with respect to predominance that
    "Apprentices had vastly different levels and amounts of authority in exercising
    managerial tasks."
    Id. The district
    court then held that "disparities in job duties"
    are "axiomatic considering that the 516 opt-in plaintiffs worked at 37 states across
    Chipotle's nine geographic regions."
    Id. at *
    9. On this basis, the district court
    decertified the collective action.
    This was error. In effect, the district court held that collective
    plaintiffs could not be similarly situated because class plaintiffs' common issues
    did not predominate over individualized ones. It is simply not the case that the
    more opt-ins there are in the class, the more the analysis under § 216(b) will
    mirror the analysis under Rule 23. Supra Part III.B.3; see also 
    O'Brien, 575 F.3d at 584-85
    (holding that the district court erred when it "implicitly and improperly
    applied a Rule 23-type analysis" to the FLSA); 
    Morgan, 551 F.3d at 1265
    (noting
    that "the size of an FLSA collective action does not, on its own, compel the
    41
    conclusion that" it should not be maintained). Accordingly, we vacate the
    district court's decertification of the collective action and remand.
    On remand, the district court shall reconsider whether named
    plaintiff and opt-in plaintiffs are "similarly situated" -- that is, whether they share
    one or more similar questions of law or fact material to the disposition of their
    FLSA claims. In doing so, the district court shall take into account its conclusion
    with respect to commonality that "the question of whether Apprentices were
    misclassified as exempt employees is common to all class members because it can
    be answered with common proof." Scott, 
    2017 WL 1287512
    , at *3. This
    conclusion was based on the district court's findings that (1) "Chipotle uniformly
    classified all Apprentices as exempt," (2) "Chipotle has an expectation that the
    core duties of the Apprentice is the same," and (3) "Chipotle uses a single job
    description for all Apprentices."
    Id. (internal quotation
    marks omitted). These
    facts, the court concluded, are "unquestionably probative of whether an
    employee is properly classified as exempt. "
    Id. (internal quotation
    marks
    omitted).
    Though these findings were made with respect to the class plaintiffs,
    and though courts may not import the requirements of Rule 23 into their
    42
    application of § 216(b) in assessing whether named plaintiffs and opt-in plaintiffs
    are similarly situated under the FLSA, these findings are relevant to collective
    plaintiffs' argument that they are similarly situated. Indeed, the "common
    question" requirement of Rule 23(a) and the "similarly situated" requirement of
    § 216(b) serve comparable ends: to identify those shared issues that will
    collectively advance the litigation of multiple claims in a joint proceeding. 9 And
    as the district court correctly noted, "the differences in the actual job duties of
    Apprentices are 'better suited to the predominance inquiry . . . together with an
    analysis of the Rule 23(b)(3) factors.'" Chipotle, 
    2017 WL 1287512
    , at *3 (quoting
    Jacob v. Duane Reade, Inc., 
    289 F.R.D. 408
    , 415 (S.D.N.Y. 2013)). Thus, as the
    district court seems to acknowledge, these differences will not prove fatal to the
    "similarly situated" analysis in the same way they proved fatal to the
    9      In analyzing commonality under Rule 23(a), "[w]hat matters . . . is not the raising
    of common 'questions' -- even in droves -- but, rather the capacity of a classwide
    proceeding to generate common answers apt to drive the resolution of the litigation."
    Wal-Mart Stores, Inc. v. Dukes, 
    564 U.S. 338
    , 350 (2011). In analyzing whether the
    "similarly situated" requirement is met under § 216(b), what matters is the extent to
    which named plaintiffs and opt-in plaintiffs share a similar issue of law or fact material
    to the disposition of their FLSA claims. See infra Part III.B.1.
    We caution that despite these similarities, courts should not overly rely on Dukes
    and other class action case law in considering collective actions. See 7B Wright & Miller,
    Fed. Prac. & Proc. Civ. § 1807 (observing that district courts have "uniformly" rejected
    the argument that Dukes affects the FLSA's "similarly situated" requirement).
    43
    predominance inquiry in this case. If named plaintiffs and opt-in plaintiffs are
    similar in some respects material to the disposition of their claims, collective
    treatment may be to that extent appropriate, as it may to that extent facilitate the
    collective litigation of collective plaintiffs' claims.
    Because the district court conflated the standards for maintaining a
    collective action under § 216(b) and a class action under Rule 23, we vacate the
    decision of the district court and remand for further proceedings consistent with
    this opinion.
    CONCLUSION
    Accordingly, we AFFIRM the district court's denial of class
    certification as to class plaintiffs' claims, we VACATE the district court's
    decertification of the collective action, and we REMAND for further proceedings
    consistent with this opinion.
    44
    Appendix
    MARVINS GEORGES, FRANCISCO MAYORGA, KATHERINE FLANAGAN, LEAH
    TURNER, JOSE RAFAEL LOPEZ, JUSTIN GRAZUNA, CHRIS HALLER, MICHAEL
    CARVER, MICHAEL DMYTRYK, MARK DANNEMILLER, ASHLEY PAMPLIN,
    ANTHONY BARTON, BRITTNEY MILLER, JAYSON GOLDSTEIN, AMANDA
    MARKS, MICHAEL HAMILTON, JOSEPH F. DE MAYO, MATTHEW FLANDERS,
    SARAH O. STRONG, STEPHEN PREISIGLLE, MARK A. WILSON, SHAWN T.
    KURTZ, SHAKIRA HAWTHORNE, SUZANNE ANDERSON, EDMAR SOARES
    SIMOES, JESUS HERNANDEZ, LISA JOHNSON, JOSE A. SANTIAGO, JOSHUA
    COBAN, MARQUICE MARRERO, NELSON JOVEL AGUEDO DEJESUS, KELLI
    WINICK, NATALIA BARKER, LUZ B. HENRIQUEZ, SHAWN GREEN, JOHNNY
    GASPER, RUSSELL FLIDDY, EMILY GJERTSON, KEVIN CALLAHAN, RONALD E.
    CONSELLO, JR., ALESIA WILLIAMS, STACY R. PENA, ALMA PULIDO, ANDREW J.
    HIRSCH, THEODORE R. JACKSON, JR., DAWN AKASON, JAMES LEE PERKINS, III,
    ZAIDA ORTIZ, MARIA VALENZVELA, NICOLE WATTS, DEREK A. GASSAWAY,
    ERIC BUTTNER, ELIZABETH DIAZ, SARAH VALDERRAMA, MANDY L.
    MCLOUGHLIN, JEREMY A. REESE, ALI SHEPPARD, MARIBEL M. MAHER,
    STEFFRIN R. WINFREY, BRIAN D. ROGERS, VERONICA WELLS, ROBERT STEDEM,
    JAVIER VALERIO, DANIELLE ROURKE, COREY PAULEY, CHRISTINE M. SVOREC,
    HEATHER FANSHER, MICHAEL T. LEACH, ROSALIE MERRILL, (MALERONI),
    BIVIANA ESPINOZA, ANGELICA ORTEGA, DUSTIN SCHREIBER, SPENCER
    PARKER, SARA MURRAY, SCOTT RIEGER, EDWARD WRIGHT, GENE KAY,
    RANDY JAMES DEAN, KEVIN ZARLEY, COREY TURNBULL, IVAN OLIVARES,
    JAVIER VILLEGAS, SANDRA K. STEWART, LUZ MARTINEZ ACOSTA, KERSTINA
    CAGGIANO, EDWARD TRIPLETT, CANDICE VANCAMP, LEONARDO
    CERQUEIRA, BRANDON KELLER, BRANDON W. DORAN, CARLOS E. FLOUS
    AURAYA, GLENN SHANK, CHAD KINSWORTHY, BERNARDU ESCOBAR PEREZ,
    JAIME SAONA, JASON GILBERT, BRANDON WOMACK, RACHAEL CASCIANO,
    RUSSELL BEHRMAN, PATRICIA ANN MOODY, ANDREW KAIS, BRATSSON E.
    PINTO, SERGIO DANICO JUAREZ, RICARDO GARCIA, IAH MAROLS, SHANE
    BARTON, JOSE PEREZ, BENJAMIN D. HOWARD, ADAM SHERRIS, ROBERTA
    FACTOR, JONATHAN MARVIN, RACHEL SPALTH, MATT ROMMEL, DENISE
    TATOM, EDWARD BOBB, JHONSON MORILLO, NATHANIEL J. CAMACHO,
    CRYSTAL BERRY, SOCORRO JIMENEZ, DAVID EICH, MARIA MURZADO, ROBERT
    FARMER, KRISTY BOWEN, KRISTIN LOMBARDI, TANNER L. RENNINGER,
    MARICELA VENTURA, TARA WOOD, LAURA K. ORTEGA PEREZ, JASON LEIB,
    MARVEZ ALEGRIA, CLARIBEL VEGA, REGINALD DOVE, JR., CHRISTOPHER
    BASSFORD, JONATHAN STREETMAN, MARIA A. ARGUELLES, DAVID ORDONEZ,
    45
    MEAGAN U. CROWE, ALBERTO MENDOZA CHAVEZ, JOSH VENVERLON,
    STEVEN H. STOWE, ERIC RIOS-FERMAN, MARC LINAMAN, ANA M. JIMENEZ,
    JESSICA VILLEGAS, JAMES TOWNSEND, JACOB DUNCAN, ALEX D-B POON,
    DANIEL BARBER, KELLIE SCHOENEMAN, ERIN DURKIN, GUILLERMO
    MARTINEZ, JR., DEWAYNE GARDNER, JENINE MEISNER, LAURA KNIGHT,
    JOSHUA DAMERON, JR., ROSS ARCE, SHAKIRA FREEMAN, CAMNLE BURNEVIK,
    VANESSA ACEVEDO, BRANDON GILLISSIE, KEVIN STECKE, ANGELA WICKEIF,
    SUSAN C. STRUNK, CHRISTIAN ARMENTA, MATHEW KREUZER, LENA M.
    FAMULANO, DONNELL HARRIS, NICOLE FAULKNER, CARLOS FERNANDEZ,
    BRIAN ALLEN MORA, MATTHEW MCGOWAN, VLADIMIR S. GARRIDO
    BIAGETTI, BRITTANY DOWELL, TONY HERNANDEZ, III, STEPHEN W. ROBERTS,
    HANNAH E. VOYTEN, STACY M. JOHNSON, JOSHUA LEONOR, RACHAEL JACK,
    ROBERT C. SHOUP, SHARA L. MATLOCK, SHANTELLE OLIVER, MIGUEL
    MARTINEZ, AMY TULLIS, ANDREW HETTINGER, MEGAN MACINTYRE, IAN
    SAMPSON, DENIENE GOREY, VANESSA GONZALEZ, ARTHUR BAKER,
    CHARLOTTE R. MAXWELL, AARON HORNER, ANNA DILLON, PAUL BISSETT,
    KAYLA NEWSOM, AMANDA FISHER, ALEXANDER DANIELS, GAGE BENSON,
    CORY TSEV, IVAN RUIZ, RUDY NUNEZ, SHADD MELCHIORRE, OMAR
    GUTIERREZ, ORIDIO CASTRO-DELCID, RUDY VILCHIS, CORDELL GODFREY,
    HEATHER RICHARDS, JULISSA DOUVILLE, CHELSEA E. FIELDS, RONALDO
    ALVAREZ, JACKIE LOUDERMILK, CLAUDIA E. TAYLOR, DEREK IAN
    CANTWELL, LETICIA QUINTERO, JERA L. PENNINGTON, MATTHEW T. DONIS,
    RYAN M. CASSLER, ANGELA GESARIO, SCOTT TAFT, REYNA C. CRUZ, DARRELL
    WARD, DANIEL ARGO, MEGAN A. MURRAY, MATTHEW SAUERS, ELIZABETH
    HOPKINS, BARBOA CAESAR, SHELLY M. STINSON, JUSTIN BREEDEN, REYNA M.
    RYES LARIOS, JENNIFER CURTIS, JESSA ANDERSON, JESSE WOOTEN, GABRIEL
    O. GURALIEROS, SCOTT MEISTER, FRENDIRA GOMEZ, DANIEL NEFF, DANETTE
    RODRIGUEZ, JOHNNY MALDONADO, ADAM DIREISDORF, JESSICA L.
    KACZMAREK, MICHAEL BEER, JOEL MAYO, MEGHAN L. CLOSE, MELISSA
    MARTINEZ, GIVONTE HUEY, ADAM DAVIS, DUSTTIN NICHOLSON, ROBERT
    MCCANN, GABRIEL WHITE, JONATHAN BOUYER, MICHAEL S. MOSCHINI,
    JULIE ANNE CORTIZO, AUBRY BAIRD, BRITTANY SWA, VERONICA MENCHEN,
    NETANEL GUTT, CARMEN M. DIAZ, ROBERTO GOUT, BEN CAMARONE GARR,
    MEAGHAN MCCLUGAIA, GROCAIELO HERNANDEZ, ROBERTA OKUADJO,
    KARISMARIE NIEDZWIECKI, SCOTT RAMR, EMILY EDGAR, LAURA IBARRA,
    ERIC LEWIS, JOSE A. SANCHEZ-PENA, DEREK CASE, KARLI KOPIETZ, CARLOS
    ROMERO, DARRELL ANDERSON, KRISTIAN PI, MELISSA ALVARADO, ROBERT O.
    SMITH, PAUL A. ANDORFER, ELIZABETH H. GOMULA, JEFFREY A. MOBLEY,
    JOSHUA MIDDENDORF, KAYLA M. DAVIS, CHRIS PERRY, ANDRES QUINONES,
    ROWANA ANTHONY, MARIA REYES, ZACHARY SANFORD, SANDRA CHURCH,
    46
    TONY LACHEL, MILTON CHAMBERLAIN, III, ANDREW MCIALWAIN, SARAH
    ELIZABETH WILLS, JASON LEVERENZ, ERIKA MAH, ARGURO RAMON, SCOTT
    MUMFORD, FERNANDO BARRETO, DAVID R. PERRUCHON, URI ANTONIO
    AGUILAR, JOSEPH DEIVECCHIO, MARK B. PAETZ, SHENISE WILLIAMS, CARLA
    M. CARRABBIA, STEPHANIE PORTILLO, JAMES BITTNER, SORAYA KANOU,
    MARTHA RODRIGUEZ, KEVIN CHAN, RICHMOND C. FRISON, ANDRIA LARSON,
    VICTORIA GUTIERREZ, RUSSELL A. CARATANUTO, FRANKO MERINO, EDITH
    SIGARAN, MARINA TAYAMA, RACHEL NORRIS, CIARA L. HURU, TRACIE
    SHALTUCK, HOLLY KENNELL, MARK GIORDANO, MICHAEL PRINGLE, JESSICA
    GARCIA, VERENICE GALVAIN, MAYLIN LEE SCHOFIELD, GENIFER GELMAN,
    RAMON A. RAMOS, STEVEN HALSTEAD, STEVEN MOO, NICHOLE R. HUNDLEY,
    DARLENE NICHOLS, JOHN THOMAS GONZALEZ, COLE HOLMAN,
    JOHNATHAN MORRIS, DANIEL FERRIE, KRISTEN KING, AMANDA PASTORE,
    MIRIAM BAUTISTA, DONNA LEE JOHNSON, JOANNY ALVAREZ, KYLE
    YANDENBURGH, ALEJANDRO LOPEZ, KELSEY WRIGHT, ZAKARIA FESSIKH,
    MATTHEW ROWEDDA, JONATHON WOLAK, LUIS A. VEGA, SAIAS MARTINEZ
    MONDRAGON, MARCOS MCADOO, REBECCA DAMPHOUSSE PLANT, MONICA
    GARCIA, DANIELLE ENGLE, ERIC LUND, JOSH PAETZ, JIMMY TUCKER,
    AMANDA HENRY, JESSICA DAVIES, ROBYN YEAGER, KALINDA FLORES, JOSE R.
    ORTEGA, JOHN M. FEAR, JAMIE LAMB, JUVENAL VARGAS, OSCAR PEREIRA,
    KYLE FENNESSEY, CHELSEY NICASTRO, CARLOS ALEXI AVALOS GRANADOS,
    HEATHER DORNHECKER, PATRICE DERFLINGER, MARTA SERRATO, DENNIS
    MIGUEL ORDONEZ-RAMOS, RAMON ALONSO, JOSIE HALL, LYDIA PIEPER,
    RAUL CRUZ, MICHAEL J. WOOD, ERICK MEDINA, CARRIE SWANSON,
    (CLEMETSON), KEISLER BAQUIRAN, BRITTNEY ALSTON, GABRIEL VASQUEZ,
    NICOLE DAVIS, KELLY PALECEK, DANIEL HOWLING, LUIS VIDAL, KRISTIN
    VATES, ALEXANDRA NEAL, RICHARD BUTCHER, ISELA HERNANDEZ, NORMA
    P. MORALES, STEPHANI TWIDELL, JOSE RAUL BARRIOS, DARRYL MILLEDGE,
    SCOTT M. COSTELLO, KENNETH J. STACY, NICHOLAS TELLEZ, SEAN SULLIVAN,
    JEFF HABLE, KRYSTAL BEINING, LORENA A. CHAPARRO, ARAN CASTILLO,
    JOHN J. HOLLAND, MARK A. GAJDA, MARISOL I. TELLEZ, DUSTIN ROBERTS,
    STEVEN HASTINGS, JEFFREY E. RUPARD, JOANNA WILLIAMS, RYAN
    CHRISTOPHER FURST, ABIGAIL VEGA, WANDA A. HARY, MICHAEL PRICE,
    MARISSA COOLEY, CRUZ FLORES, MATTHEW WERNER, GREGORIO CASTILLO,
    RAMEL CRESPO, ANTHONY ESQUIVEL, OCTAVIO MORA, JACOB N. WILDE,
    CHRISTIAN ROCHA, JASON A. SIMON, NICOLE RECCO, JOHN
    JOYCESUMMERFELD, NATHAN FENWICK, MICHAEL BERLAD, JORGE LOPEZ,
    EUA ANGEL, MARISOL RAMIREZ, KELLY NITZSCHE, EMILY A. CARR, APRIL
    LEAH MILLER, (DELSOL), KARL HASENDEHRL, ISABEL PRITCHETT, RYAN
    MCINTYRE, ANHARA ROLON YANEZ, ADAM CHRISTIAN, EUSTOLIA MEDINA,
    47
    PATRICIA VILLANUEVA, MERIDETH ELBRECHT, JOHN UNDERWOOD,
    OLGUIMAR RODRIGUEZ-RAMOS, ROSARIO BETANCOURT, KRISTINA R.
    RODRIGUEZ, MELVIN ALVAREZ-GREGORY, KATHRYN DIAZ, MOISES RUIDIAS,
    NATHANIEL DAVID SCHNEPPLE, DANIEL DALTON, ROBERTO GOMEZ,
    DIESHON CLARK, JONATHAN POPCHOKE, MATTHEW TORNO, NICHOLAS
    DWYER, WILLIAM AVILES, AILIN REYES, ABRAHAM MORAGA, JESUS
    ORTEGON, CHRISTOPHER AARON ARMSTRONG, LUIS VICENCIO, CHUN W. YU,
    ALMA DELIA CALDERON VELAZQUEZ, APPOLONIA PEREZ, STEVEN ROPER,
    ROBERT STRAUSBAUGH, LOVANA TAYLOR, ALEXIS L. MARTINEZ, MARTHA
    LORENZO MORALES, JOSE HERNANDEZ-MIRANDA, LAUREN KELSCH, SEAVEN
    CAYSON, REGGIE COVERSON, STEVEN CRAMP, SARAH L. MEYER-ALLEN,
    CASSANDRA MALAK, WILLIAM COLLINS, NORMA ORTEGA, KYLE RICHUN,
    EMILEE CALHOUN, MIKE STELZER, MORTIMER CADOGUN, RAUL RUIZ, JR.,
    RAUL LOVATO, LUIS ALONSO ORTEGON, CHRISTINA HOLLINGSHEAD, ADAN
    CASTILLO RAMOS, ERIC LOW, VANIA VASQUEZ, JONATHAN R. NICHOL, JOE
    ROSTYNE, JANNELLE KIRKWOOD, KOFI BOSSMAN, NATANAEL DIAZ
    PORTILLO, TARA M. GENTRY, CHRISTINA G. WEST, GERALD V. LABENSKY, JR.,
    FREDDY A. DIAZ VEGA, SARA GARNER, MICHAEL RINGLE, FELIPE NAVARRO,
    PARITHAN KUNGSUVVAN, JOSEPH JACOBS, ALEXANDRIA RAMAS, SARAH
    NOAH, JONATHAN M. HAYS, ROBERT J. GALLAGHER, RENEE POPE-MACEDO,
    KATHRYN ARMSTRONG, NICOLE PERKINS, MICHELLE HERRERA, LUIS TORRES,
    II, AMBER L. FORTSON, BRANDON MORGAN, VIDALIA FLORES TRUJILLO,
    SARAH PAPE, JOEL GOSNELL, VIVIANA HENRIQUEZ, AMIE MYERS, DAVID
    NOEL, ANDREW PAOLINETTI, ADELINA SANCHEZ, WAYNE CHARLES FRANZ,
    WILLIAM R. DOWNARD, MILAGROS M. DE LA FUENTE, BRIDGETT THOMAS,
    JOSE JACOBS, WILLIAM I. LAKE, CRYSTAL TORRES, ERNEST M. DIAZ, SHALETT
    DOXIE, SHALETT DOVIE, BRIAN P. HOWELL, JOSSEP DIAZ, JASON KERN,
    MADDIE BRENNAN, JOE DETTLO, MELISSA SOSA, EVA ANGEL, LOURDES P.
    FLORES, ANA DELGODILLA, TIARA HUGHES, ROXANA MORALES, FREDDIE
    AHUMADA, ANTHONY MANCO, LAURA YBARRA, CARLOS FRAGUADA, PETER
    C. DELGADO, BRITTANY LINK, JOSE VILLAFRANCO, CONSUELO V. PEREZ, JOSE
    RAMIREZ, ANA PIMENTEL, BONNIE BUSS, KEVIN SCOTT, GRACIELA ESCOBAR,
    MORTIMER CADOGAN, THOMAS BLAKE DODSON, WILLIAM R. MEYER, RYAN
    TRACY, BRIAN SHORT, RAFAEL ESCALANTE, JOSEPH ROSTYN, ANA LUISA
    VIDAL, JOHN E. HEJDUK, THOMAS WERNER, ASHLEY P. GREEN, MICHAEL
    IERINA, KATE KUZMESKUS, ERNESTO BALDELAMAR, CARMELO MENDEZ, JR.,
    OMAR CASILLAS, JACOB MAJOR, KAI CLARK, RODIS NAJARRO, MARIA ROSA,
    MARK A. TURNER, TRISTA P. TAGUE, YVETTE DODGE, COREY YEAUGER, HANS
    RICHTER, JOSHUA GOTTLOB, ALYSSA ASHLEY CHISHOLM, BRYCE HANDY,
    48
    GABRIEL CARRION VELLEJO, ALFREDO CUATE BRIONES, ANA MARIA
    HEREDIA, ANA LAURA SANCHEZ INFANTE, JAIME MANZO, JASON LIS
    49
    SULLIVAN, Circuit Judge, concurring in part and dissenting in part:
    While I concur in Parts I and II of the majority’s decision, I respectfully
    dissent with respect to Part III. Specifically, I disagree with the majority regarding
    the proper standard to be applied in determining whether plaintiffs are “similarly
    situated” for the purposes of a collective action under 29 U.S.C § 216(b).
    Furthermore, I believe that the district court’s decertification of the collective
    action was not an abuse of discretion when judged against the correct standard.
    Accordingly, I would affirm the district court’s ruling in its entirety.
    I.
    First, the majority’s newly minted definition of “similarly situated” – i.e.,
    that “named plaintiffs and opt-in plaintiffs share one or more issues of law or fact
    that are material to the disposition of their FLSA claims” regardless of any
    “dissimilarities in other respects,” Maj. Op. at 29 (emphasis added) – has no basis
    in the text of the statute. As the majority concedes, the FLSA nowhere defines the
    term “similarly situated,” leaving the words to be interpreted in accordance with
    their plain meaning and the reasoned judgment of district judges tasked with
    assessing the universe of facts available in a given case. Common sense would
    suggest that “similarly situated” often requires more than the sharing of a single
    fact or legal issue, and that the existence of multiple dissimilarities would be
    highly relevant to the inquiry. The majority’s definition – equating “similarly
    situated” with “any similarity” – lowers the bar for collective actions, and reduces
    district courts to mere bystanders rather than gatekeepers.
    Unlike the majority, I do not view the differences between Rule 23 and
    § 216(b) as supporting the “any similarity” standard. To be sure, the standards
    under Rule 23 and § 216(b) are wholly “independent of, and unrelated to” one
    another, Kern v. Siemens Corp., 
    393 F.3d 120
    , 128 (2d Cir. 2004) (quoting Grayson v.
    K Mart Corp., 
    79 F.3d 1086
    , 1096 n.12 (11th Cir. 1996)), and the requirements of
    § 216(b) are less stringent than those of Rule 23, see Myers v. Hertz Corp., 
    624 F.3d 537
    , 555–56 (2d Cir. 2010), in part because courts are not faced with the same due
    process concerns regarding absent class members that they face in a class action
    under Rule 23, see Hoffman v. Sbarro, Inc., 
    982 F. Supp. 249
    , 263 n.17 (S.D.N.Y. 1997)
    (Sotomayor, J.) (observing that Rule 23 is designed in part to protect the due
    process rights of absent class members, a concern that is not present in the FLSA
    context). Nevertheless, I am not convinced that Rule 23 and § 216(b) serve
    “fundamentally different purposes,” Maj. Op. at 38, or that their differences are so
    substantial as to make the “similarly situated” requirement of § 216(b) a mere
    2
    formality. “Section 216(b) of the FLSA and Rule 23(b)(3) are animated by similar
    concerns about the efficient resolution of common claims.” Calderone v. Scott, 
    838 F.3d 1101
    , 1103 (11th Cir. 2016). While plaintiffs must make an additional showing
    to be certified as a class under Rule 23, neither plaintiffs nor the court would be
    significantly benefited if plaintiffs were allowed to proceed collectively despite
    having drastically different material facts or different legal claims simply because
    they share a single common fact or legal issue. See Hoffmann-La Roche, Inc. v.
    Sperling, 
    493 U.S. 165
    , 170 (1989) (“A collective action allows . . . plaintiffs the
    advantage of lower individual costs to vindicate rights by the pooling of resources.
    The judicial system benefits by efficient resolution in one proceeding of common
    issues of law and fact arising from the same alleged discriminatory activity.” (emphasis
    added)); see also Zavala v. Wal Mart Stores Inc., 
    691 F.3d 527
    , 538 (3d Cir. 2012)
    (explaining that “simply sharing a common status, like being an illegal
    immigrant,” and being subject to a “common scheme” does not amount to being
    “similarly situated” if “[l]iability and damages still need to be individually
    proven”).    Although the majority is undoubtedly correct that “where the
    conditions of § 216(b) are met, employees have a substantive ‘right’ to proceed as
    a collective,” Maj. Op. at 38, plaintiffs must, as a threshold matter, actually satisfy
    3
    those conditions – including that they are “similarly situated.” Where they cannot,
    employees will nonetheless continue to have an incentive to bring FLSA suits
    individually, particularly since prevailing plaintiffs will still be entitled to
    attorneys’ fees under the statute even if the damages award is modest. See Fisher
    v. SD Prot. Inc., 
    948 F.3d 593
    , 604 (2d Cir. 2020) (emphasizing that there is no
    requirement that attorneys’ fees be proportional to the settlement amount, as
    “[t]he whole purpose of fee-shifting statutes is to generate attorneys’ fees that are
    disproportionate to the plaintiff's recovery” (emphasis omitted) (quoting Millea v.
    Metro-N. R. Co., 
    658 F.3d 154
    , 169 (2d Cir. 2011)).
    I am equally unpersuaded by the majority’s critique of the ad hoc test
    employed by the district court and many other courts around the country. Maj.
    Op. at 31. Most of the cases cited by the majority are readily distinguishable, and
    do in fact assess some of the factors identified under the so-called ad hoc test. See
    Halle v. W. Penn Allegheny Health Sys. Inc., 
    842 F.3d 215
    , 226 (3d Cir. 2016)
    (emphasizing that courts should consider “all relevant factors . . . on a case-by-case
    basis,” including “the factual and employment settings of . . . plaintiffs, the
    different defenses . . . , the degree of fairness and procedural impact of certifying
    the action . . . , and whether plaintiffs have made the appropriate filings with the
    4
    EEOC”); McGlone v. Contract Callers, Inc., 
    49 F. Supp. 3d 364
    , 367 (S.D.N.Y. 2014)
    (looking not to a single question of law or fact but rather “common questions of
    law and fact,” and specifically noting that courts typically consider the ad hoc
    factors). The majority leans most heavily upon the Ninth Circuit’s decision in
    Campbell v. City of Los Angeles, 
    903 F.3d 1090
    (9th Cir. 2018), which contains broad
    language that arguably supports the majority’s expansive “similarly situated”
    requirement. But while the Ninth Circuit disapproved of the ad hoc approach “as
    it is typically articulated,” even it clarified that it did not intend to “preclude the
    district court[] from employing . . . a version of the ad hoc test modified so as to
    account for the flaws” it had identified.
    Id. at 1117,
    1117 n.21.
    To me, it seems obvious that an assessment of whether plaintiffs are
    “similarly situated” requires the application of an ad hoc test that leaves district
    courts free to consider the myriad factors – including both similarities and
    dissimilarities – at play in a given case. See 
    Zavala, 691 F.3d at 537
    –38 (finding that
    the plaintiffs had failed to satisfy the “similarly situated standard” because “[t]he
    similarities among the proposed plaintiffs are too few, and the differences among
    the proposed plaintiffs are too many” such that there would be “minimal utility in
    streamlining resolution of the claims”). Although the requirements under Rule 23
    5
    and § 216(b) are different, we have in fact recognized that the predominance
    inquiry under Rule 23 and the “similarly situated” standard under § 216(b) are
    “admittedly similar.” See 
    Myers, 624 F.3d at 556
    . A district court should thus
    consider similarities such as “whether the plaintiffs are employed in the same
    corporate department, division, and location; whether they advance similar
    claims; whether they seek substantially the same form of relief; and whether they
    have similar salaries and circumstances of employment.” Karlo v. Pittsburgh Glass
    Works, LLC, 
    849 F.3d 61
    , 85 (3d Cir. 2017) (emphases omitted) (quoting 
    Zavala, 691 F.3d at 536
    –37). It should then weigh these against any dissimilarities, such as the
    “disparate factual and employment settings of the individual plaintiffs” and
    “defenses available to defendants which appear to be individual to each plaintiff.”
    Scott v. Chipotle Mexican Grill, Inc., No. 12-cv-8333 (ALC) (SN), 
    2017 WL 1287512
    ,
    at *8 (S.D.N.Y. Mar. 29, 2017) (quoting Hernandez v. Fresh Diet, Inc., No. 12-cv-4339
    (ALC) (JLC), 
    2014 WL 5039431
    , at *3 (S.D.N.Y. Sept. 29, 2014)); see also 
    Zavala, 691 F.3d at 536
    –37 (“Plaintiffs may also be found dissimilar based on the existence of
    individualized defenses.”). In weighing these factors, a court should consider
    “fairness and procedural considerations counseling for or against collective action
    treatment.” Scott, 
    2017 WL 1287512
    , at *8 (quoting Hernandez, 
    2014 WL 5039431
    , at
    6
    *3.   In my view, this standard more appropriately accounts for the “flaws”
    identified by the court in Campbell while still promoting efficient and just
    resolution of claims.
    I am thus less troubled than the majority that “courts facing parallel motions
    to decertify an FLSA collective action under § 216(b) and to certify a class action
    under Rule 23 have tended to allow either both actions or neither to proceed on a
    collective basis.” Maj. Op. at 34 (quoting Ruiz v. CitiBank, N.A., 
    93 F. Supp. 3d 279
    ,
    298–99 (S.D.N.Y. 2015)). While the two provisions are surely distinct, such an
    outcome would seem to be a natural result of two statutes that allow for class
    treatment based on some showing of similarity between plaintiffs. In sum, rather
    than being forced to certify a collective if plaintiffs share a single common issue,
    the district court, with the benefit of having reviewed volumes of record evidence
    after years of discovery, should be able to weigh the similarities and dissimilarities
    to determine if plaintiffs are “similarly situated” such that the collective action
    mechanism is the appropriate vehicle for the claims at issue.
    II.
    Having defined what I view as the appropriate standard, I also depart from
    the majority’s application of the law to the facts here. While one can quibble with
    7
    the propriety of the district court’s reference to the “sliding scale” standard, it
    seems to me that the district court’s ultimate conclusion in this case was wholly
    justified. See Farrior v. Waterford Bd. of Educ., 
    277 F.3d 633
    , 635 (2d Cir. 2002)
    (upholding the district court’s decision where it misstated the standard but
    properly analyzed the claims). The district court cited the ad hoc factors “[t]o
    avoid conflating § 216(b) collective certification with Rule 23,” and I see no
    evidence that its analysis was in fact driven by the more stringent requirements of
    Rule 23. Scott, 
    2017 WL 1287512
    , at *8. Instead, the district court concluded that
    despite the possibility that one could identify a common issue among Plaintiffs,
    the similarities were superficial. Its decision was supported by factual findings,
    and to my mind at least, was not an abuse of discretion.
    For all of these reasons, I would affirm the district court’s ruling in all
    respects. I therefore dissent from Part III of the majority’s opinion.
    8