United States v. Kim ( 2006 )


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  •                     FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    UNITED STATES OF AMERICA,                      No. 05-50112
    Plaintiff-Appellee,               D.C. No.
    v.
         CR-01-00024-RT
    JAE GAB KIM,                                    ORDER AND
    Defendant-Appellant.                AMENDED
            OPINION
    Appeal from the United States District Court
    for the Central District of California
    Robert J. Timlin, Senior Judge, Presiding
    Argued and Submitted
    March 6, 2006—Pasadena, California
    Filed April 10, 2006
    Amended May 25, 2006
    Before: M. Margaret McKeown and Marsha S. Berzon,
    Circuit Judges, and Samuel P. King,* Senior Judge.
    Opinion by Judge Berzon
    *The Honorable Samuel P. King, Senior United States District Judge
    for the District of Hawaii, sitting by designation.
    5765
    5768               UNITED STATES v. KIM
    COUNSEL
    William J. Genego, Esq., Santa Monica, California, argued
    the case and was on the briefs for the defendant-appellant.
    Gregory A. Lesser, Assistant U.S. Attorney, Los Angeles,
    California, argued the case and was on the briefs for the
    plaintiff-appellee; Debra Wong Yang, U.S. Attorney and
    Thomas P. O’Brien, Assistant U.S. Attorney, Los Angeles,
    California, were on the briefs for the plaintiff-appellee.
    UNITED STATES v. KIM                      5769
    ORDER
    The opinion filed on April 10, 2006, is amended as follows:
    On slip opinion page 3929, line 9, beginning with “Over-
    the-counter sales . . .” and ending line 12 with “from ‘regu-
    lated transactions.’ ” delete and replace with the following:
    Over-the-counter sales of pseudoephedrine that are
    not “ordinary,” however, may be regulated transac-
    tions, because they are not necessarily included in
    the exemption from regulated transactions.
    On slip opinion page 3929, line 12, after “exemption from
    ‘regulated transactions.’ ” insert the following footnote:
    The definition of “regulated transaction” generally
    allows the “Attorney General [to] establish[ ] a
    threshold amount for a specific listed chemical.”
    § 802(39)(A). Section 802(39)(A)(iv)(II) provided at
    the time of Kim’s offense “the threshold for any sale
    of products containing pseudoephedrine . . . products
    by retail distributors or by distributors required to
    submit reports by section 830(b)(3) of this title shall
    be 24 grams of pseudoephedrine . . . in a single
    transaction.”
    At the time of the relevant transactions in this
    case, the Attorney General had not established single
    transaction thresholds for retail sales of pseudo-
    ephedrine, but he has done so since then. Compare
    21 C.F.R. 1310.04(f) (2000) with 21 C.F.R.
    1310.04(f) (2006). The details of the quantity or
    quality of pseudoephedrine that must be recorded
    and reported are not dispositive in this case and the
    statute has been amended recently, see infra note 8,
    so we do not address the recording and reporting
    requirements further.
    5770                UNITED STATES v. KIM
    On slip opinion page 3929, line 22, beginning with “Alter-
    natively, sales of twenty-four grams . . .” and ending line 28
    with “twenty-four grams or more.” delete and replace with the
    following:
    Additionally, sales of twenty-four grams or more of
    pseudoephedrine were automatically subject to the
    recording requirements of § 830. § 802(39)(A)
    (iv)(II). The upshot is that over-the-counter sales of
    pseudoephedrine had to be recorded if the items pur-
    chased totaled twenty-four grams or more and (1)
    were not in blister packs or (2) were in packages of
    more than three grams per package.
    With these amendments, the panel has voted to deny the
    petition for rehearing. The petition for rehearing is DENIED.
    No further petitions for rehearing or for rehearing en banc
    may be filed.
    OPINION
    BERZON, Circuit Judge:
    Pseudoephedrine, a “listed chemical” under a federal drug
    statute, 
    21 U.S.C. § 802
    (33) & (34)(K), is an ingredient in
    many over-the-counter cold medications. It can also be used
    to manufacture methamphetamine, a controlled substance
    under 
    21 U.S.C. § 812
    . Both the United States and California
    have statutes prohibiting over-the-counter sales of drugs con-
    taining pseudoephedrine in certain instances. See 
    21 U.S.C. § 841
    (c)(2); CAL. HEALTH & SAFETY CODE § 11100(a)(17) &
    (e)(6).
    This case concerns the conviction of the proprietor of a
    small pharmacy for selling cold remedies containing pseu-
    doephedrine. Jae Gab Kim was convicted of violating 21
    UNITED STATES v. KIM                        
    5771 U.S.C. § 841
    (c)(2), which prohibits the distribution of listed
    chemicals, including pseudoephedrine, “knowing, or having
    reasonable cause to believe, that [the pseudoephedrine] will
    be used to manufacture a controlled substance.” He argues
    that, because drugs containing pseudoephedrine can be legally
    sold over the counter and there is no bright line in the law
    demarcating a legal sale from an illegal sale, the law allowing
    conviction upon “reasonable cause to believe” is unconstitu-
    tionally vague. We have previously held that § 841(c)(2) con-
    tains a mens rea requirement. With that mens rea standard, the
    statute is not unconstitutionally vague. We therefore affirm
    Kim’s conviction.
    I.   BACKGROUND
    Kim owned and operated the San Jacinto Pharmacy. After
    receiving information about the law regarding the sale of
    pseudoephedrine from an industry newsletter, Kim instructed
    his clerk, Virginia Garcia, not to sell more than 150 sixty-
    milligram pills per person, per day. Kim believed that sales
    under this quantity were legal.
    Kim purchased drugs containing pseudoephedrine from
    Bergen Brunswig. In May 2000, the Drug Enforcement
    Administration (DEA) received a report from Bergen Brun-
    swig that Kim’s purchases of drugs containing pseudoephe-
    drine had sharply increased.1
    The DEA began an investigation of Kim, sending under-
    cover agents to purchase cold remedies containing pseu-
    doephedrine from his pharmacy. Two transactions are
    relevant to this appeal:2 On January 4, 2001, three undercover
    1
    Evidence at trial showed that Kim’s purchases increased from a total
    of 347.28 grams in December 1999 to 1712.16 grams in April 2000. The
    quantity continued to increase, reaching a high of 4396.32 grams in July
    2000. Kim’s purchases of the larger-count bottles (stock bottles) also
    increased drastically over the same time period.
    2
    There were seven total purchases by undercover agents, each one even-
    tually resulting in a count in Kim’s indictment. As noted below, Kim was
    ultimately convicted of only two counts in the indictment.
    5772                 UNITED STATES v. KIM
    agents entered Kim’s pharmacy. Kim was standing in an ele-
    vated section at the rear of the pharmacy, filling prescriptions.
    Kim nodded and smiled at the three agents. The agents
    attempted to purchase all the packages of cold medication on
    display. After Garcia started to tell the agents that one person
    could not buy all the medication, Kim interjected to ask what
    was going on and who was buying what. Kim instructed them
    to return some of the medication so that his stock would not
    be depleted. The three agents returned some of the boxes and
    divided the remainder for purchase. Ultimately, the agents
    were each allowed to purchase two boxes of 96-count thirty-
    milligram tablets and one box of 24-count thirty-milligram
    tablets, for a total of around 6 grams of pseudoephedrine.
    Additionally, in Kim’s presence and conspicuously, the men
    inquired about and purchased hydrogen peroxide, iodine, and
    rubbing alcohol, all of which are used to manufacture
    methamphetamine. One of the men mumbled, in connection
    with the purchase of alcohol, that he needed alcohol to “break
    it down.” One of the agents provided all the money for the
    purchases, although the purchases were rung up separately.
    There were confusing statements as to whether the person
    who supplied the money was holding the others’ money for
    them or, instead, paying for all the purchases himself.
    As Garcia was completing the transaction, one of the agents
    asked, “Can we get some more of this tomorrow?” Garcia
    answered, “Well hopefully.” Kim, however, answered,
    “We’re not selling every day.” He added that the purchase
    “lasts for you, normally.”
    The next day, January 5, 2001, the same three undercover
    officers returned to the pharmacy. Kim again nodded to them
    as they entered. Although the officers assumed that he recog-
    nized them, there is no direct evidence that he did. One officer
    attempted to purchase multiple bottles of pseudoephedrine.
    Again, Garcia would not allow this sale to proceed. She did,
    however, allow each man to purchase one 100-count sixty-
    milligram bottle. As on the previous day, one officer held all
    UNITED STATES v. KIM                       5773
    the money initially and handed it to the other two so they
    could pay for their pseudoephedrine. Afterwards, the officers
    also each purchased two 24-count boxes of thirty-milligram
    pseudoephedrine, for a total of about 7.5 grams each. Kim
    was not involved in this transaction, but he was in the store
    at the time.
    Kim was indicted for violating 
    21 U.S.C. § 841
    (c)(2),3 for
    distributing a listed chemical when the merchant “knows or
    has reasonable cause to believe” that the chemical will be
    used to manufacture illicit drugs.4 At trial, at the close of the
    government’s case-in-chief, the district court granted Kim’s
    motion for judgment of acquittal on three counts. The jury
    found Kim not guilty of another count. The district court later
    granted a post-verdict judgment of acquittal as to yet another
    count. In the end, Kim was convicted only on counts six and
    seven, covering the incidents described above.
    Both after the government’s case-in-chief and after the jury
    returned its verdict, Kim challenged the vagueness of the stat-
    ute under which he was indicted. The district court denied
    both motions. Kim was sentenced to five months incarcera-
    tion, three years supervised release—during which he was to
    spend five months in home detention—and a $15,000 fine.
    We were informed at oral argument that he lost his pharma-
    cist’s license as a result of the convictions.
    3
    Unless otherwise noted, all references to the United States Code and
    California Health and Safety Code are to the 2000 version.
    4
    Kim’s case previously came before the Ninth Circuit on appeal from
    the dismissal of the indictment. United States v. Kim, 
    298 F.3d 746
     (9th
    Cir. 2002). Kim complained that his indictment could not stand because
    it failed to allege that he knew that the pseudoephedrine he sold “would
    be used to manufacture a drug outside the scope of his authority as a
    licensed pharmacist.” 
    Id. at 748
    . The district court agreed and dismissed
    Kim’s indictment. The government appealed. 
    Id.
     We reversed the district
    court, determining that the elements of the crime were sufficiently set
    forth to overcome a motion to dismiss. 
    Id. at 750
    .
    5774                      UNITED STATES v. KIM
    II.   STATE AND FEDERAL LAW
    [1] The federal statute under which Kim was convicted pro-
    vides that “[a]ny person who knowingly or intentionally . . .
    possesses or distributes a listed chemical knowing, or having
    reasonable cause to believe, that the listed chemical will be
    used to manufacture a controlled substance except as autho-
    rized by this subchapter” shall be fined or imprisoned, or
    both. 
    21 U.S.C. § 841
    (c)(2). The federal law also contains a
    requirement that sales of certain packages of pseudoephedrine
    be recorded.5 The recording statute contains a confusing maze
    of rules, exceptions to the rules, and exceptions to the excep-
    tions. First, “[e]ach regulated person who engages in a regu-
    lated transaction involving a listed chemical . . . shall keep a
    record of the transaction for two years after the date of the
    transaction.” 
    21 U.S.C. § 830
    (a)(1). Not all sales of listed
    chemicals, however, are considered “regulated transactions.”
    “[A]ny sale of ordinary over-the-counter pseudoephedrine . . .
    by retail distributors shall not be a regulated transaction.”
    § 802(39)(A)(iv)(I)(aa). Over-the-counter sales of pseu-
    doephedrine that are not “ordinary,” however, may be regu-
    lated transactions, because they are not necessarily included
    in the exemption from regulated transactions.6 With respect to
    pseudoephedrine in particular,
    5
    Certain of those sales that must be recorded must also be reported to
    the government.
    Each regulated person shall report to the Attorney General . . .
    any regulated transaction involving an extraordinary quantity of
    a listed chemical, an uncommon method of payment or delivery,
    or any other circumstance that the regulated person believes may
    indicate that the listed chemical will be used in violation of this
    subchapter.
    
    21 U.S.C. § 830
    (b)(1)(A). The statute contains no definition of “extraordi-
    nary quantity.”
    6
    The definition of “regulated transaction” generally allows the “Attor-
    ney General [to] establish[ ] a threshold amount for a specific listed chem-
    ical.” § 802(39)(A). Section 802(39)(A)(iv)(II) provided at the time of
    UNITED STATES v. KIM                          5775
    The term “ordinary over-the-counter pseudoephe-
    drine . . . product” means any product containing
    pseudoephedrine . . . sold in package sizes of not
    more than 3.0 grams of pseudoephedrine base . . .
    that is packaged in blister packs, each blister con-
    taining not more than two dosage units, or where the
    use of blister packs is technically infeasible, that is
    packaged in unit dose packets or pouches.
    § 802(45)(B)(i).7 Additionally, sales of twenty-four grams or
    more of pseudoephedrine were automatically subject to the
    recording requirements of § 830. § 802(39)(A)(iv)(II). The
    upshot is that over-the-counter sales of pseudoephedrine had
    to be recorded if the items purchased totaled twenty-four
    grams or more and (1) were not in blister packs or (2) were
    in packages of more than three grams per package.8
    Kim’s offense “the threshold for any sale of products containing pseu-
    doephedrine . . . products by retail distributors or by distributors required
    to submit reports by section 830(b)(3) of this title shall be 24 grams of
    pseudoephedrine . . . in a single transaction.”
    At the time of the relevant transactions in this case, the Attorney Gen-
    eral had not established single transaction thresholds for retail sales of
    pseudoephedrine, but he has done so since then. Compare 21 C.F.R.
    1310.04(f) (2000) with 21 C.F.R. 1310.04(f) (2006). The details of the
    quantity or quality of pseudoephedrine that must be recorded and reported
    are not dispositive in this case and the statute has been amended recently,
    see infra note 8, so we do not address the recording and reporting require-
    ments further.
    7
    In the case of liquids, however, if they are “sold in package sizes of
    not more than 3.0 grams of pseudoephedrine base,” they qualify as “ordi-
    nary over-the-counter” sales. § 802(45)(B)(ii).
    8
    The federal law has very recently been amended. On March 9, 2006,
    President Bush signed into law an amendment to the USA PATRIOT
    Improvement and Reauthorization Act of 2005, which contained a section
    entitled the Combat Methamphetamine Epidemic Act of 2005. Pub. L. No.
    109-177, § 711, 
    120 Stat. 192
    , 256-63 (2006). The Combat Methamphet-
    amine Epidemic Act strengthened the recording requirements of the fed-
    eral statute and further restricted sales of pseudoephedrine. It contains no
    amendment, however, to § 841(c)(2), the criminal liability section. See id.
    5776                      UNITED STATES v. KIM
    California makes it a felony for people to sell certain sub-
    stances “with knowledge or the intent that the recipient will
    use the substance to unlawfully manufacture a controlled sub-
    stance.” 
    Cal. Health & Safety Code § 11104
    (a). The prohib-
    ited substances, which include pseudoephedrine, are listed in
    California Health and Safety Code section 11100(a), which
    also requires merchants to report sales of regulated substances.9
    The California reporting statute, section 11100, incorporates
    federal law by exempting from its reporting requirements
    those transactions involving chemicals “lawfully sold, trans-
    ferred, or furnished over the counter without a prescription
    pursuant to the federal Food, Drug, and Cosmetic Act (21
    U.S.C. Sec. 301 et seq.) or regulations adopted thereunder.”
    CAL. HEALTH & SAFETY CODE § 11100(e)(4)(A). The Califor-
    nia statute, however, specifically does not exempt from its
    reporting requirement sales “where the individual transaction
    involves more than three packages or nine grams of” pseu-
    doephedrine. Id. Thus, a pharmacist who sells more than nine
    grams of pseudoephedrine must report the sale to the Califor-
    nia government, whereas a pharmacist who sells less must
    only report the sale to California if the drugs were sold in vio-
    lation of the federal law—a category which would include, as
    we have noted, sales made “knowing or having reasonable
    cause to believe” that the purchase of drugs would be used to
    manufacture methamphetamine.
    The upshot is that neither state nor federal law specifies any
    “safe harbor” amount of pseudoephedrine that may be sold
    over the counter. Instead, the seller’s actual or imputed
    knowledge that the chemical will be used to manufacture
    methamphetamine is determinative of criminal liability,
    regardless of the amount sold.
    9
    “Any manufacturer, wholesaler, retailer, or other person in this state
    who sells, transfers, or otherwise furnishes any of the following substances
    to any person or business entity in this state or any other state shall submit
    a report to the Department of Justice of all of those transactions . . . .” CAL.
    HEALTH & SAFETY CODE § 11100(a).
    UNITED STATES v. KIM                          5777
    A.    The Interaction Between Recording and Reporting
    Requirements and Criminal Liability
    Kim sold quantities below the per se reporting limits of the
    California statute, never selling to the undercover DEA agents
    more than three packages or nine grams of pseudoephedrine
    during a single transaction. Kim argues that because the Cali-
    fornia provision makes a sale of nine grams “otherwise autho-
    rized,” he did not have adequate notice that a sale of less than
    nine grams could subject him to federal prosecution.10 We
    reject Kim’s claim.
    [2] First, Kim points to no support for his assumption that
    the federal statute exempts from criminal liability transactions
    permitted under state law. There is no provision in the federal
    law providing a safe harbor for transactions “otherwise autho-
    rized”; the term is entirely of Kim’s own construction. Fur-
    thermore, unless a federal law states otherwise, state law
    cannot empower a citizen to act contrary to a federal prohibi-
    tion. See United States v. Moore, 
    109 F.3d 1456
    , 1462 (9th
    Cir. 1997) (en banc).
    [3] Second, Kim appears to have confused the reporting
    requirements under California law with the criminal liability
    standards. The California provision does not “authorize[ ]”
    single transactions of less than nine grams. As noted above,
    the California law requires merchants to report to the Califor-
    nia Department of Justice transactions involving sales of cer-
    tain chemicals. A merchant need not report a lawful (under
    federal law) sale of less than nine grams; he or she must report
    10
    Kim does not challenge the sufficiency of the evidence on his convic-
    tion. In particular, he does not argue that because he did not directly par-
    ticipate in the January 5 transaction, he could not be guilty of distributing
    pseudoephedrine with any knowledge or reasonable cause to believe that
    this particular sale would result in the production of methamphetamine.
    We therefore do not decide whether a supervising pharmacist or proprietor
    who does not participate directly in a specific transaction can be crimi-
    nally liable under § 841(c)(2).
    5778                     UNITED STATES v. KIM
    a sale of more than nine grams, whether or not lawful under
    federal law.11 The more-than-nine-grams standard is thus sig-
    nificant for the purposes of California law only because it
    delineates those sales that must automatically be reported
    from those that may not need to be reported.
    [4] The California felony provision covering sales of pseu-
    doephedrine, in contrast, contains no dosage safe harbor. Sec-
    tion 11104(a), the criminal liability provision, makes it a
    felony conviction to sell certain chemicals “with knowledge
    or the intent” that those chemicals will be used to manufacture
    illicit drugs. A sale of any quantity can violate California law
    if it is entered into with the requisite mental state; the quantity
    is irrelevant except as circumstantial evidence of intent.
    Although Kim allowed the undercover agents to purchase
    only quantities of pseudoephedrine below the per se reporting
    requirement of the California statute, he was not necessarily
    acting within the bounds of state law by consummating the
    sale for those quantities.
    Kim argues that there is inadequate notice “of where (and
    how) the line is drawn to indicate when an [over-the-counter]
    sale that is otherwise authorized becomes one that is unlaw-
    ful.” As noted above, however, Kim’s sales were not autho-
    rized by the California statute, although they were not
    explicitly prohibited either; the mens rea requirement was
    determinative.
    Third, Kim’s arguments based solely on federal law fare no
    better. He contends that because pseudoephedrine is legally
    sold over-the-counter for personal use, he must have protec-
    tion against criminal liability under federal law for those per-
    sonal use sales that are below the level at which they must be
    recorded. Pointing to provisions of federal law that mention
    “legitimate medical use” and “personal use,” § 802(46)(A) &
    11
    Additionally, a merchant must report a sale that is unlawful under fed-
    eral law.
    UNITED STATES v. KIM                         5779
    (B), Kim contends that “other than limiting the dosage level,
    there is nothing in the law to provide a retail distributor with
    assurance or guidance as to what is required for his over-the-
    counter sales to be deemed sales for legitimate medical use.”
    Kim is correct that, under federal law, a retail distributor is
    one who engages in sales for personal use, which are “below-
    threshold” sales for legitimate medical purposes. 
    21 U.S.C. § 802
    (46).12 He forgets, however, that retail distributors are
    only exempted from the definition of “regulated transaction”
    (which triggers the recording requirements of § 830) when
    they sell “not more than 3.0 grams of pseudoephedrine base
    . . . that is packaged in blister packs, each blister containing
    not more than two dosage units, or where the use of blister
    packs is technically infeasible, that is packaged in unit dose
    packets or pouches.” § 802(45)(B)(i).
    Kim is therefore correct that a bright-line rule exists estab-
    lishing a threshold for sales of pseudoephedrine.13 This bright-
    line rule, however, applies only to the recording requirements
    and not to the criminal liability provision. The criminal liabil-
    ity provision contains no cross-reference to the recording
    requirements, nor does it include the terms “legitimate medi-
    cal use” or “personal use.” Whether the over-the-counter sale
    12
    
    21 U.S.C. § 802
    (46) provides:
    (A) The term “retail distributor” means a grocery store, general
    merchandise store, drug store, or other entity or person whose
    activities as a distributor relating to pseudoephedrine or phenyl-
    propanolamine products are limited almost exclusively to sales
    for personal use, both in number of sales and volume of sales,
    either directly to walk-in customers or in face-to-face transactions
    by direct sales.
    (B) For purposes of this paragraph, sale for personal use means
    the sale of below-threshold quantities in a single transaction to an
    individual for legitimate medical use.
    13
    Kim’s sales to the undercover DEA agents do not fall within this
    exception because they involved in part over-the-counter sales of stock
    bottles, not solely blister packs.
    5780                     UNITED STATES v. KIM
    was for a legitimate medical purpose within the meaning of
    the recording requirement is therefore technically irrelevant to
    the criminal liability provision at issue here. In practical
    terms, however, when a pharmacist knows or has reasonable
    cause to believe that a below-threshold quantity of pseu-
    doephedrine will be used for the production of methamphet-
    amine, that is not a legitimate medical use.14
    [5] In any event, whether or not Kim had to report the sales
    he entered into with the undercover DEA agents to the U.S.
    Attorney General, he could still be subject to criminal prose-
    cution if those sales violated § 841(c)(2). Kim’s criminal lia-
    bility instead turns on whether he “kn[e]w or ha[d] reasonable
    cause to believe” that his conduct would lead to manufacture
    of illicit drugs. § 841(c)(2). As is true with other criminal stat-
    utes, conduct is prohibited not solely because of its objective
    contours, but because of the defendant’s state of mind regard-
    ing such an effect. There is no quantity threshold exempting
    a merchant from criminal liability under § 841(c)(2).
    B.    Vagueness and Mens Rea
    Kim argues that, construed as containing no quantity
    threshold, the statute is unconstitutionally vague because it
    does not provide a reasonably intelligent person with suffi-
    cient notice concerning whether he is violating it. Essentially,
    he argues that absent designation of a “safe harbor” amount
    that he may sell to each individual each day, he cannot be
    expected to conform his behavior to legal requirements and
    thus avoid criminal liability. There is, however, no constitu-
    14
    In the prior appeal from the dismissal of Kim’s indictment, we deter-
    mined that charging him with “reason to know that [the pseudoephedrine]
    would be used to make methamphetamine” was sufficient to set forth the
    elements of the crime. Kim, 
    298 F.3d at 750
    . Although a pharmacist is
    authorized to sell pseudoephedrine for “legitimate medical use” under 
    21 U.S.C. § 802
    (46), if the pharmacist sells the pseudoephedrine in violation
    of § 841(c)(2), his conduct is “not covered by the exception” of § 802(46).
    Id.
    UNITED STATES v. KIM                         5781
    tional principle—and Kim points to none—requiring the fed-
    eral government to spell out a specific amount of
    pseudoephedrine that pharmacists may sell in each transaction
    without incurring criminal liability. Nor do more general
    vagueness principles support his contention.
    [6] “It is a basic principle of due process that an enactment
    is void for vagueness if its prohibitions are not clearly
    defined.” Grayned v. City of Rockford, 
    408 U.S. 104
    , 108
    (1972). Vague laws that do not infringe upon First Amend-
    ment rights have two principle evils:15 (1) they do not give a
    “person of ordinary intelligence a reasonable opportunity to
    know what is prohibited, so that he may act accordingly”; and
    (2) they encourage arbitrary and discriminatory enforcement
    by not providing explicit standards for policemen, judges, and
    juries. 
    Id. at 108-09
    ; accord Kolender v. Lawson, 
    461 U.S. 352
    , 358 (1983). Thus, if a statute is not sufficiently clear to
    provide guidance to citizens concerning how they can avoid
    violating it and to provide authorities with principles govern-
    ing enforcement, a defendant cannot be punished for violating
    that statute.
    [7] Kim concedes, as he must, that vagueness challenges to
    statutes that do not involve First Amendment violations must
    be examined as applied to the defendant. See Vill. of Hoffman
    Estates v. Flipside, Hoffman Estates, Inc., 
    455 U.S. 489
    , 495
    n.7 (1982); see also United States v. Purdy, 
    264 F.3d 809
    , 811
    (9th Cir. 2001) (“[O]ur concern is whether the [statute] is
    impermissibly vague in the circumstances of this case.” (quot-
    ing United States v. Ocegueda, 
    564 F.2d 1363
    , 1365 (9th Cir.
    1977) (emphasis added))). Thus, if Kim’s actions clearly
    come within the statute, he cannot make a void for vagueness
    challenge. Ocegueda, 
    564 F.2d at 1365
    .
    15
    Vague laws that do implicate First Amendment rights also have the
    “potential for arbitrarily suppressing First Amendment liberties.” Shuttles-
    worth v. City of Birmingham, 
    382 U.S. 87
    , 91 (1965).
    5782                      UNITED STATES v. KIM
    Kim suggests that an as-applied vagueness challenge
    requires only that the defendant show that his conduct, as
    proven at trial, was not clearly prohibited by the statute. This
    approach would, in essence, raise the usual sufficiency of the
    evidence standard to something akin to a clear and convincing
    evidence standard if a vagueness challenge is raised.
    Kim seriously misinterprets the vagueness doctrine. The
    inquiry into whether Kim’s conduct clearly falls within the
    statute is only a threshold inquiry, weeding out those defen-
    dants who cannot make an as-applied vagueness challenge at
    all. If, as here, the defendant’s conduct does not fall squarely
    and obviously within the statute, he can make an as-applied
    vagueness challenge. But when the jury finds, on sufficient
    evidence, that he committed the statutory offense, the defen-
    dant must still demonstrate that the statute is unconstitution-
    ally vague as applied to him to avoid conviction.16 See Purdy,
    
    264 F.3d at 811
     (examining the vagueness of the statute as
    applied to the defendant).
    [8] We have previously held that § 841(c)(2) contains a
    mens rea requirement. United States v. Johal, 
    428 F.3d 823
    ,
    827 (9th Cir. 2005). The statute “requires that a defendant
    subjectively know facts that either cause him or would cause
    a reasonable person to believe that the ingredients are being
    used to produce illegal drugs.” 
    Id.
     Whether a defendant is
    guilty of having “reasonable cause to believe” that the pseu-
    doephedrine will be used to produce illicit drugs “turns on the
    facts actually known by the defendant in a particular case.” 
    Id. at 828
    . Also, the requirement includes the specification that
    the defendant had reasonable cause to believe that the chemi-
    cal he sold “will be used to manufacture a controlled sub-
    stance,” § 841(c)(2) (emphasis added); mere probability of
    use is insufficient.17 For all these reasons, the statutory “rea-
    16
    As we noted earlier, we are assuming sufficient evidence because suf-
    ficiency was not challenged.
    17
    Johal rejected the defendant’s contention that the “statute requires the
    actual production of methamphetamine. Johal, 
    428 F.3d at 828
    . It is there-
    UNITED STATES v. KIM                        5783
    sonable cause to believe” mens rea standard “limits the likeli-
    hood that a defendant will be prosecuted for mere inadvertent
    conduct and is consistent with the longstanding principle pre-
    suming a mens rea requirement for criminal activity.” Johal,
    
    428 F.3d at 827
    .
    [9] The holding in Johal forecasts our decision here,
    because “a scienter requirement may mitigate a law’s vague-
    ness, especially with respect to the adequacy of notice to the
    complainant that his conduct is proscribed.” Vill. of Hoffman
    Estates, 
    455 U.S. at 499
    . Significantly, here, a person of ordi-
    nary intelligence can base his behavior on his factual knowl-
    edge of the situation at hand and thereby avoid violating the
    law.
    “[R]easonable cause to believe” or similar language is
    found in other statutes. See Stoianoff v. Montana, 
    695 F.2d 1214
    , 1221-22 & n.5 (9th Cir. 1983) (regarding “reasonably
    should know”); see also United States v. Saffo, 
    227 F.3d 1260
    , 1268 (10th Cir. 2000) (regarding “reasonable cause to
    believe”); United States v. Biro, 
    143 F.3d 1421
    , 1430 (11th
    Cir. 1998) (regarding “reason to know”). These statutes have
    “repeatedly withstood vagueness challenges.” Wash. Mercan-
    tile Assoc. v. Williams, 
    733 F.2d 687
    , 692 (9th Cir. 1984).
    “[T]he fact that a defendant reasonably should have known
    something is established in substantially the same manner as
    actual knowledge.” Stoianoff, 
    695 F.2d at 1221
    .
    “[R]easonable cause to believe” is therefore substantially sim-
    ilar to knowledge in eliminating vagueness. It is often proven
    largely through circumstantial evidence and inferences, but
    what must be proven is not vague.
    fore of no consequence that Kim sold the pseudoephedrine to undercover
    federal agents who presumably did not actually manufacture illicit drugs
    with their purchases. The key question is whether Kim had “reasonable
    cause to believe the chemical will be used to make drugs.” 
    Id.
     The inquiry
    therefore centers on defendant’s understanding, or imputed understanding,
    of the situation at the time of the sale.
    5784                 UNITED STATES v. KIM
    Kim argues that larger chain stores escape liability because
    of their larger size and mechanized checkouts, demonstrating
    that the statute is subject to arbitrary enforcement and there-
    fore vague. We do not have any evidence on the record sup-
    porting Kim’s differential enforcement accusation. Even
    assuming that it is accurate, however, lack of prosecution of
    some cases that could be covered by a statute “is no sufficient
    reason to hold the language too ambiguous to define a crimi-
    nal offense.” United States v. Petrillo, 
    332 U.S. 1
    , 7 (1947).
    Furthermore, any discrepancy in enforcement could well be
    the result of a structural difference between the chain stores
    and small pharmacies, rather than of arbitrary enforcement. It
    is not that the statute has no guidelines, such that the authori-
    ties can arbitrarily prosecute one class of merchants instead of
    another, but rather that the statute allows for a situation in
    which a store’s structure can, intentionally or not, cause its
    employees and managers to avoid criminal liability. The dis-
    incentive to prosecute may be a matter of proof—that it is dif-
    ficult for the government to prove the existence of an actor in
    the chain stores who knows or has reasonable cause to believe
    that a sale of pseudoephedrine will lead to the manufacture of
    methamphetamine, because checkout stands are covered by
    many different people at different times or not covered at all.
    Alternatively, the reason for any discrepancy in prosecution
    may be a matter of there not being an actor in the store who
    has such mens rea, because the larger stores have ways of
    monitoring their sales to assure that suspicious sales do not
    occur. Or it may be that the smaller, nonchain stores are tar-
    geted by the methamphetamine manufacturers themselves and
    so are more likely to come on the DEA’s radar screen through
    pseudoephedrine manufacturers’ reports or personal observa-
    tion. As these examples show, given the reach of prosecu-
    torial discretion, there are many explanations for differential
    prosecution—not all of them indicative of the most efficient
    policy—other than the vagueness of the statute involved.
    UNITED STATES v. KIM                            5785
    III.   CONCLUSION
    Kim has misinterpreted, whether deliberately or not, his
    obligations under the federal and state laws restricting the sale
    of pseudoephedrine. We clarify here that the recording and
    reporting statutes establish no safe harbor from prosecution
    under § 841(c)(2). Instead, retailers must refrain from selling
    any amount of pseudoephedrine knowing or having reason-
    able cause to believe that the buyer intends to use the chemi-
    cal to manufacture methamphetamine. Here, the jury
    determined that Kim knew or had reasonable cause to believe
    that the sales to the undercover DEA agents would lead to the
    manufacture of methamphetamine. Kim apparently thought he
    could rely on some magic formula, rather than his own
    informed observation of his customers, to decide which sales
    were legal and which were not. Congress has chosen not to
    provide such a formula. Balancing its desire to continue to
    allow sales of cold medicines without a prescription against
    the apparent propensity of methamphetamine manufacturers
    to accumulate chemicals for their manufacturing processes
    through purchases from ordinary retail stores, Congress has
    placed responsibility to monitor pseudoephedrine sales on
    those who are profiting from them.
    There may be circumstances more marginal than this one
    in which that approach could yield an unfair result. Careful
    attention to the sufficiency of the evidence in cases under
    § 841(c)(2) is therefore of critical importance, so as not to dis-
    suade legitimate retailers from selling these useful home rem-
    edies at all, for fear of prosecution.18 That Kim was acquitted
    18
    Although he did not raise a sufficiency argument, Kim’s case is some-
    what close compared to others that have been reported. See, e.g., Johal,
    
    428 F.3d at 825-26
    ; Saffo, 
    227 F.3d at 1263-66
    . There was, however suffi-
    cient evidence supporting the jury’s conclusion, at least to the January 4
    offense: Before the sting operation, Kim was warned by investigators from
    the California Pharmacy Board about the dangers of pseudoephedrine and
    his potential liability. There was a large spike in his sales, especially of the
    5786                    UNITED STATES v. KIM
    by the judge and the jury on most of the counts against him
    indicates that such care was taken in this case.
    [10] In sum, we conclude that because it has a sufficiently
    clear mens rea provision, § 841(c)(2) is not unconstitutionally
    vague. Kim’s conviction was therefore valid.
    AFFIRMED.
    larger stock bottles. On January 4, Kim directly encountered three men
    who were acting suspiciously while purchasing substantial quantities of
    pseudoephedrine—specifically, stating a desire to “break it down”; pur-
    chasing alcohol, hydrogen peroxide, and iodine; attempting to purchase
    the entire supply of pseudoephedrine packages; and paying through a sin-
    gle person, suggesting one transaction rather than three—and yet he
    allowed the sale to proceed.