Firearm Transportation Due to the fact that CA @-@ 243 pass Idyllwild School , pursuant to the Gun @-@ Free School Zones Act of 1990 , firearms , including those in vehicles , must be within the guidelines of 18 U.S.C. § 922 ( q ) ( 2 ) ( B ) within the school zone , which is , as defined by 18 U.S.C. § 921 ( a ) ( 25 ) , is 1000 feet . Violators will be , according to 18 U.S.C. § 924 ( a ) ( 4 ) , " fined under this title , imprisoned for not more than 5 years , or both . "