After a jury trial in the district court, Houston was convicted of receipt of a firearm by an ex-felon, a violation of 18 U.S.C. App. § 1202(a)(1). 1 In 1972, he had been convicted in a California court for illegal possession of firearms by an ex-felon, in contravention of Cal. Penal Code § 12021 (West Supp. 1976). Subsequently, in 1975, he purchased a .30 caliber M-l rifle, which had been shipped in interstate commerce. The Government charged that because his previous state conviction constituted a felony as defined by 18 U.S.C. App. § 1202, Houston’s receipt of the firearm was a violation of federal law.
*106 On appeal, Houston contends that application to him of 18 U.S.C. App. § 1202 by reason of the previous California conviction is unconstitutional and is contrary to the intent of Congress. He also assigns as error certain instructions given to the jury. We reject these contentions and affirm the conviction.
The state offense of which Houston was convicted, Cal. Penal Code § 12021 (West Supp. 1976), is punishable by “imprisonment in a state prison not exceeding 15 years, or in a county jail not exceeding one year or by a fine not exceeding five hundred dollars ($500), or by both.” 2 The California law in effect in 1972, however, provided that violations of Cal. Penal Code § 12021 were to be characterized as either misdemeanors or felonies solely by reference to the sentence actually imposed by the court. Houston was sentenced to three months’ custody in the Sacramento County Jail. The offense therefore constituted a misdemeanor under California law. See Cal. Penal Code § 17 (West Supp. 1976).
Houston’s principal contention on this appeal is that since his conviction under the California statute is classified as a misdemeanor under state law, he is not a felon for the purposes of 18 U.S.C. App. § 1202. This argument ignores the explicit definitional scheme set out in the federal statute. 18 U.S.C. App. § 1202 contains its own definition of “felony.” 3 In defining that term, the statute refers to the maximum sentence of imprisonment by which an offense is punishable under applicable law, rather than to the sentence actually imposed. Here, the state crime for which Houston was convicted involved a firearm and was punishable by imprisonment for more than a year. His prior offense thus constitutes a felony as defined in the federal statute. 4
Appellant is not helped by the state’s characterization of his 1972 conviction as a misdemeanor. State laws designating a crime as either a misdemeanor or a felony are relevant only in cases where the prior offense did not involve a firearm and is punishable by imprisonment of less than two years. Where those conditions are inapplicable, we look to state law solely to determine whether the maximum permissible prison term exceeds one year. If so, the state conviction constitutes a felony for purposes of 18 U.S.C. App. § 1202.
United States v. Latham,
*107
Appellant next argues that 18 U.S.C. App. § 1202 violates the equal protection clause because California may punish proscribed offenses more strictly than other states. It is clear that Congress had a rational basis for enacting section 1202.
United States v. Burton,
That the application of section 1202 is ultimately predicated on laws which may vary from state to state provides no substance to appellant’s constitutional claim. “In this situation, with an established nexus under the Commerce Clause, there is no requirement of national uniformity . .”
United States v. Burton,
Appellant’s attack of 18 U.S.C. App. § 1202 on the ground of vagueness is without merit. “[T]he statutory language clearly identifies the evil sought to be corrected and the persons to whom it applies so that a ‘void for vagueness’ contention is wholly inappropriate.”
United States v. Rubino,
At trial, Houston stipulated that he had been convicted of a felony in 1972. He now argues that the stipulation was entered into because of a mistake of law and thus should be set aside. When parties have entered into stipulations as to material facts, those facts will be deemed to have been conclusively established.
Schlemmer v. Provident Life & Accident Ins. Co.,
In a similar vein, Houston argues that the issue whether the rifle he received had previously traveled in interstate commerce should have been decided by the court. The claim is without foundation. In this case, the question was one of fact that was properly submitted to the jury.
See United States v. Marihart,
Houston finally argues that there was uncontradicted evidence at trial that prior to receipt of the rifle, he was led to believe by a deputy sheriff that it was permissible to purchase the rifle to protect himself. He contends that the court should have instructed the jury sua sponte that he could not be found guilty if he had acted under a mistake of law. Appellant raised no objection to the instructions of the trial court, and he may not on appeal assign as
*108
error the district court’s failure to instruct unless it rose to the level of plain error. See Fed.R.Crim.P. 30, 52(b);
United States v. Hood,
We have considered appellant’s other contentions and find them without merit.
The judgment of conviction is affirmed.
Notes
. 18 U.S.C. App. § 1202(a) provides in pertinent part:
Any person who has been convicted by a court of the United States or of a State or any political subdivision thereof of a felony and who receives, possesses, or transports in commerce or affecting commerce, after the date of the enactment of this Act, any firearm shall be fined not more than $10,000 or imprisoned for not more than two years, or both.
. The penalties under Cal. Penal Code § 12021 have been modified by the Uniform Determinate Sentencing Act of 1976, ch. 1139, §§ 98 & 303, 1976 Cal. Legis. Serv. 4752 (effective July 1, 1977).
. 18 U.S.C. App. § 1202(c)(2) provides:
“[F]elony” means any offense punishable by imprisonment for a term exceeding one year, but does not include any offense (other than one involving a firearm or explosive) classified as a misdemeanor under the laws of a State and punishable by a term of imprisonment of two years or less ....
.
United States v. Schultheis,
. Our holding reaches a question different from the one considered by the opinion of this court in
United States v. Potts,
