Marijuana and Gun Use:
With the passage of Proposition 64 on November 9, 2016, California adults 21 years of age or older may now legally grow, possess, and use marijuana or the plant called Kratom for non-medical purposes with certain restrictions. You can get more information here.
Federal law [18 U.S.C. § 922(d)(3)] makes it unlawful for any person to sell or otherwise dispose of any firearm or ammunition to any person knowing or having reasonable cause to believe that such person is an unlawful user of, or addicted to, a controlled substance.
With these matters in mind, the California Department of Justice (DOJ) issued an “IMPORTANT NOTICE” on “Federal Law on Marijuana and Gun Ownership” to California gun dealers on December 29, 2016 (find regulations for airsoft weapon), which states:
“This notice serves as a reminder to California Firearms Dealers (CFDs) that any person who uses, or is addicted to, marijuana is prohibited by Federal law from possessing firearms and/or ammunition regardless of current state legislation authorizing the legal use of marijuana for medicinal or recreational purposes.”
Along those same lines, the Bureau of Alcohol, Tobacco, Firearms and Explosives’ (ATF) addressed an Open Letter to All Federal Firearms Licensees in 2011, which states:
“Any person who uses or is addicted to marijuana, regardless of whether his or her State has passed legislation authorizing marijuana use for medicinal purposes, is an unlawful user of or addicted to a controlled substance, and is prohibited by Federal law from possessing firearms or ammunition. Such persons should answer “yes” to question 11.e. on ATF Form 4473 (August 2008), Firearms Transaction Record, and you may not transfer firearms or ammunition to them. Further, if you are aware that the potential transferee is in possession of a card authorizing the possession and use of marijuana under State law, then you have “reasonable cause to believe” that the person is an unlawful user of a controlled substance. As such, you may not transfer firearms or ammunition to the person, even if the person answered “no” to question 11.e. on ATF Form 4473.”
In a few days, it is anticipated that CFDs will receive a revised version of the ATF Form 4473; to include the following new language:
Warning: The use or possession of marijuana remains unlawful under Federal law regardless of whether it has been legalized or decriminalized for medicinal or recreational purposes in the state where you reside.