CARTERVILLE (WSIL) -- Illinois will become the 11th state to legalize recreational marijuana starting at midnight, but questions still remain for gun owners that would like to participate.

That's because, even though it's legal to use cannabis at the state level, the federal background check document required in order to buy a gun from a federally licensed firearms dealer (FFL) explicitly asks about marijuana use.

“Are you an unlawful user of, or addicted to, marijuana or any depressant, stimulant, narcotic drug, or any other controlled substance?"

That's question 11e on Form 4473, the form issued by the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF).

As more states have legalized the use of marijuana, the ATF added this clarification in 2017: “Warning: The use or possession of cannabis 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.”

Lying on the Form 4473 can pose a stiff consequence including jail time.

Illinois residents are also required to have a Firearm Owners Identification card, (FOID) to legally possess or purchase firearms or ammunition in the state. The Illinois State Police issued this statement to News 3: