Title 18, United States Code, section 930(a), bans the knowing possession of a firearm in a federal facility. A separate subsection of the statute conditions convictions under this provision upon the posting of conspicuous notice of the prohibition. The main issue in this case, and one of first impression, is whether proof of adequate notice is an element of the crime of possession or an affirmative defense. We hold that it is an affirmative defensе. We also hold, consistent with established precedent, that a restitution order under the Victim'and Witness Protection Act can only be based upon harm resulting from conduct of which the defendant was convicted.
I.
Taneilian McArthur was involved in an argument with another man, Corey Smith, inside the Enlisted Men’s Club at Maxwell Air Force Base, Gunter Annex. McArthur left the club first, retrieved his gun from the trank of his ear and placed it on the front seat. In the parking lot later that evening, McArthur pulled his ear in front оf Smith as Smith exited the club. Smith approached McArthur’s car and McArthur shot him, allegedly in self-defense.
A grand jury indicted McArthur for committing three federal crimes: assault with intent to commit murder within the special maritime and territorial jurisdiction of the United States, 18 U.S.CA. § 113(a) (1969 & Supp.1996) (Count One); using and carrying a firearm in relation to a crime of violence, 18 U.S.C.A. § 924(c)(1) (Supp.1996) (Count Two); and possessing a firearm in a federal facility, 18 U.S.C.A. § 930(a) (Supp.1996), amended by Pub.L. 104r-294, § 603(u), 110 Stat. 3488, — (1996) (Count Three). 1 A jury acquitted McArthur of Counts One and Two, but convicted him of Count Three. The district court sentenced McArthur to six months’ imprisonment. In calculating restitution pursuant to the Victim and Witness Protection Act, 18 U.S.C.A. §§ 3579-3580 (1985), the district court found that the financial loss from Smith’s hospitalization and injuries totaled $28,176.07 and ordered McAr-thur to pay that amount.
On appeal, McArthur alleges that his conviction must be reversed because the government failed to prove an essential element of the offense charged in Count Three. He further claims that restitution was improper, because it was founded on counts of which he was acquitted.
II.
Title 18, section 930 (“section 930”) defines four federal crimes: simple possession of a firearm or dangerous weapon in a federal facility (subsection (a)); 2 simple possession in a federal court facility (subsection (e)); possession with intent to use the weapon in the commission of a crime (subsection (b)); and killing or attempted killing in the course of a violation of subseсtions (a) or (b) (subsection (c)). Convictions under subsections *1353 (a) and (e) are limited by subsection (h). It provides:
Notice of the provisions of subsections (a) and (b) shall be posted conspicuously at each public entrance to each Federal facility, and notice of subsection (e) shall be posted conspicuously at each public entrance to each Federal court facility, and no person shall be convicted of an offense under subsection (a) or (e) with respect tо a Federal facility if such notice is not so posted at such facility, unless such person had actual notice of subsection (a) or (e) as the ease may be.
18 U.S.C.A. § 930(h).
McArthur first contends that the government failed to prove beyond a reasonable doubt all of the elements of the crime charged in Count Three and that the district court erred in failing to instruct the jury as to all of the elements the offense. Specifically, he argues that whereas subsection (a) of section 930 bans firearm possession in federal facilities, subsection (h) prohibits a conviction under subsection (a) unless conspicuous notice is posted to inform people of the prohibition. According to McArthur, subsection (h) is an element of the offense of possession and, therefore, the government must prove the existence of the required notice beyond a reasonable doubt.
See In re Winship, 397
U.S. 358, 364,
To determine whether an exception to a criminal offense is an element of the crime or an affirmative defense, we undertake a three-part inquiry. We begin with the language and structure of the statute. Next, we examine the legislative history of the provision,
United States v. Laroche,
With regard to the language and structure of the statute, we are guided by two interpretive presumptions. First, a narrow proviso to a more general statutory offense is more likely to be an affirmative defense than an element of the offense. As the Supreme Court has stated, “an indictment ... founded on a general provision defining the elements of an offense ... need not negative the matter of an exception made by a proviso or other distinct clause, whether in the same section or elsewhere. ...”
McKelvey v. United States,
Considering the first of our interpretive guides, subsection (h) appears to be an affirmative defense; it is a narrow exception to a general proscription. Specifically, subsection (a) bans all firearm possession in federal facilities, and subsection (h) excepts possession at facilities where notice is inadequate or inconsрicuous. Section 930’s plain language indicates that subsection (h) is a defense: “no person shall be convicted of an offense under subsection (a) or (e)” without notice. 18 U.S.C.A. § 930(h) (emphasis added). Because subsection (a) by itself corn-prises “an offense,” subsection (h) does not appear to be an element of the offense. 7
Moreover, subsection (a) defines a perfectly cogent offense. Absent subsection (h), subsection (a) simply bans knowing possession on fеderal facilities. We do not find this troubling; indeed, we note that section 930 defines other crimes—possession of a firearm with intent to use it in a crime (subsection (b)) and killing or attempted killing in the course of another violation (subsection (c))—without excepting prosecutions where notice is deficient. This statute is not the “rare instance[]” where an exception is truly an element of the crime, raising the concerns we highlighted in Outler. Section 930 does not conceal mens rea in an exception; rather, subsection (a) requires the government to prove that a defendant knowingly possessed a firearm in a federal facility. 8 Consequently, it ensures convictions based on more than mere innocence—it requires that the defendant know he has a gun in his possession and know that he is entering a federal facility. 9 In light of this requirement and the pervasive regulation of weapon possession at federal facilities, 10 due process is *1355 not offended by a prosecution without proof of adequate notice.
The legislative history of section 980, although sparse, indicates that Congress viewed subsection (h) as an affirmative defense. Part of the massive Anti-Drug Abuse Act of 1988, Pub.L. 100-690, 102 Stat. 4181 (1988), section 930 originated in the House of Representatives and was enacted into law as passed by the House. See H.R. 5210, 100th Cong. § 6215 (1988). Before the Senate voted on the measure, the Senate Judiciary Committee reviewed the House bill and Senator Biden, the committee chair, drafted a sectiоn-by-section analysis. With regard to the provision before us, he stated that “the absence of the required notice will be a complete defense to the simple possession offense [subsection (a) ] unless the defendant had actual knowledge.” 134 Gong. Reg. S.17,360-02 (daily ed. Nov. 10, 1988) (statement of Sen. Biden) (emphasis added). Although this history would not, by itself, carry the day for the government, it supports our reading of the statute. 11
Next, courts determining whether a statutory exception is an element of the сrime or an affirmative defense often consider whether the government or the defendant is in the best position to prove facts necessary to trigger the exception. Where defendants are better equipped to prove facts that would allow them to take advantage of a statutory exception, we ordinarily view that exception as an affirmative defense.
See, e.g., Jackson,
Finally, although the parties identify, and we find, no case law relevant to the precise question before us, 13 courts have interpreted an analogous statute and its implementing regulations. Under 40 U.S.C.A. § 318a, the General Services Administration (“GSA”) is authorized to regulate government property and to make violating such regulations a crime, so long as the rules it adopts are posted conspicuously on site. Prior to the enactment of section 930, a GSA regulation prohibited gun possession at federal facilities. 14 Two cases interpreting that regula *1356 tion implicate thе question before us; unfortunately, their holdings conflict.
In
United States v. Crow,
Although these disparate holdings give us рause, we believe that significant differences between the GSA regulation at issue in those cases and section 930 counsel against following the Fifth Circuit with regard to the statute before us. The notice provision of section 930 is located in a subsection apart from the definition of the offense, whereas the provision authorizing GSA to regulate federal facilities contains the notice requirement. 40 U.S.C.A. § 318a. Further, section 930, unlike the GSA regulation, requires the governmеnt to prove that a person knowingly possesses a firearm on federal premises. As a result, it guarantees that prosecutions founded on purely innocent conduct (carrying a firearm into a building without knowing it is a federal facility, e.g.) will fail. Were we interpreting the GSA regulation’s strict liability regime instead of section 930, we too might be inclined to view the notice requirement as an element of the offense, because the GSA regulation did not ensure that a defendant have any culpability to be convicted.
See, e.g., Outler,
In sum, our analysis of the language and structure of the statute favors treating subsection (h) as an affirmative defense. Moreover, the legislative history also supports our view and our position would not place an undue evidentiary burden on defendants. We are buoyed in this interpretation by the Ninth Circuit’s similar holding, and believe that the Fifth Circuit’s contrary position can be attributed to differences between the provision it considered and the one before us. Consequently, we hold that unless the defendant introduces evidence that notice of the federal law is lacking, the government, in a prosecution for the possession of firearms at federаl facilities, need not prove that notice of the ban on such possession was posted conspicuously at the facility.
III.
McArthur next argues that the district court erred in imposing restitution *1357 based on conduct of which he was acquitted. The government responds that a sentencing judge ordinarily is allowed to consider relevant conduct, even if the jury has decided that the prosecution failed to prove guilt beyond a reasonable doubt. 17
McArthur’s position is more tenable. In
Hughey v. United States,
Applying this standard, we hold that the district court’s restitution order was improper. McArthur was convicted only of possessing a firearm in a federal facility and his possession occasioned no loss. Rather, his use of the firearm caused the injuries and expenses for which the court awarded restitution. Consequently, holding him responsible for thе related costs was error.
See United States v. Cobbs,
The district court held, and the government argues here, that the restitution award was proper in light of precedent establishing the sentencing court’s power to consider relevаnt conduct, even where the defendant is acquitted of some charges.
See United States v. Watts,
- U.S. -,
We generally remand a case to the district court following our conclusion that its restitution order was improрer, so that the district court may reevaluate its sentence in light of the vacated restitution award and give effect to its “intent in creating a sentencing plan.”
Young,
IV.
Accordingly, we AFFIRM McArthur’s conviсtion and VACATE the district court’s restitution order.
Notes
. When the instant case was briefed, Congress had not yet amended section 930 to make technical corrections to the section's internal cross-references. We use the current version of the statute.
. "Except as provided in subsection (d), whoever knowingly possesses or causes to be present a firearm or other dangerous weapon in a Federal facility (other than a Federal court facility), or attempts to do so, shall be fined under this tide or imprisoned not more than 1 year, or both.” 18 U.S.C.A. § 930(a).
. Although McArthur did not raise this matter to the district court, he is entitled to review for plain error. Were we to conclude that adequate notice is an element of the offense, we also would find plain error. Failure to instruct the jury regarding an element of the offense is plain error where, as here, the government introduces no evidence regarding the element in questiоn.
Cf. De Castro,
.
See also United States v. Freter,
.
See also United States v. English,
.
See also United States v. Steele,
. Nevertheless, section 930 "is not happily worded,”
McKelvey,
. We are not unmindful of the Supreme Court’s caution, in
Staples v. United States,
. Thus, this is not a situation where the language chosen by Congress would “criminalize otherwise innocent conduct.”
United States v. X-Citement Video, Inc.,
.
See, e.g., 4
C.F.R. § 25.14 (possession of firearms prohibited in GAO Building, except for “official purposes”); 32 C.F.R. § 234.10 (possession of firearms prohibited аt Pentagon without authorization from Defense Protective Service); 32 C.F.R. § 1903.7 (possession of firearms prohibited on CIA protected property without authorization from Director of Security); 44 C.F.R. § 15.14 (possession of firearms prohibited at FEMA Special Facility without authorization from FEMA Director).
Cf. Downing v. Kunzig,
. An unenacted bill from the same Congress also has arguable bearing on the matter. The Senate considered and abandoned — likely in favor of the more expansive House provision discussed above — a bill that only would have prohibited firearm possession in federal court facilities. That bill expressly declared that the absence of conspicuous notice was an affirmative defense. Undetectable Firearms Act, S. 2327, 100th Cong. § 5(b) (1988). We, however, decline to draw any inferences from its non-enactment. The omission of the affirmative defense language in the final bill "is not dispositive because it does not tell us precisely where the compromise was struck” in enacting section 930.
See Landgraf v. USI Film Prods.,
.
See also Durrani,
. McArthur claimed in his reply brief that
United States v. Lunstedt,
. GSA is "authorized to make all needful rules and regulations for the government of the property under [its] charge or control_ * * * Provided, That such rules and regulations shall be posted and kept posted in a conspicuous place on such property.” 40 U.S.C.A. § 318a (1986). GSA promulgated regulations which, inter alia, prohibited firearm possession on federal property. 41 C.F.R. § 101-20.313 (1988). GSA amended the regulations in 1989 when section *1356 930 superseded the firearms prohibition. 54 Fed.Reg. 15,757 (1989) (codified at 41 C.F.R. § 101-20.313 (1996)).
. Our characterization of the majority's implied holding is strengthened by Judge Noonan’s dissent. He objected to the majority's refusal to address the claim that the lack of notice was an element of the crime, saying that posting “constitute[d] an essential element that the United States must prove in order to prove crime in the violation of the regulation.”
. Were it not for this latter sentence, we would not read the court to have concluded that absence of notice was an element of the offense. We have stated previously that “an element is not always an 'essential element' simply because the prosecution carries the burden of proof...."
Outler,
. At oral argumеnt, the government also argued that McArthur waived this argument by not making a sufficiently specific objection to the district court. We need not evaluate the adequacy of McArthur’s argument, however, because his claim is entitled to plain error review and we consider a district court's misinterpretation of its authority to order restitution plain error.
United States v. Obasohan,
. “The court, when sentencing a defendant convicted of an offense ... may order, in addition to or, in the case of a misdemeanor, in lieu of any other penalty authorized by law, that the defen *1358 dant make restitution to any victim of such offense." 18 U.S.C.A. § 3663(a)(1)(A).
