<Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> The Gun - Free School Zones Act (GFSZA) is an act of the U.S. Congress prohibiting any unauthorized individual from knowingly possessing a loaded or unsecured firearm at a place that the individual knows, or has reasonable cause to believe, is a school zone as defined by 18 U.S.C. § 921 (a) (25). The law applies to public, private, and parochial elementary schools and high schools, and to non-private property within 1000 feet of them . It provides that the states and their political subdivisions may issue licenses that exempt the licensed individuals from the prohibition . </P> <P> It was first introduced in the U.S. Senate in February 1990 as S. 2070 by Senator Herb Kohl of Wisconsin and then was incorporated into the Crime Control Act of 1990 that was signed into law by President George H.W. Bush . </P> <P> The Gun - Free School Zones Act of 1990 was originally passed as section 1702 of the Crime Control Act of 1990 . It added 18 U.S.C. § 922 (q); 18 U.S.C. § 922 itself was added by the Omnibus Crime Control and Safe Streets Act of 1968 . </P>

When did american schools become gun free zones