Colorado - Firearms/Weapons on School Campuses: Prohibitions or Restrictions
C.R.S. 22-33-106. Grounds for suspension, expulsion, and denial of admission
(1.5) Notwithstanding any other provision of law, in accordance with the provisions of 20 U.S.C. sec. 7961, a student who is determined to have brought a firearm to a school, or to have possessed a firearm at a school, shall be expelled for a period of not less than one year; except that the superintendent of the student's school district may modify this requirement for a student on a case-by-case basis if such modification is in writing.