As used in this act:

(a) “Board of education” means the board of education of a unified school district or the governing authority of an accredited nonpublic school.

(b) “School” means a public school or an accredited nonpublic school.

(c) “Public school” means a school operated by a unified school district organized under the laws of this state.

(d) “Accredited nonpublic school” means a nonpublic school participating in the quality performance accreditation system.

(e) “Chief administrative officer of a school” means, in the case of a public school, the superintendent of schools and, in the case of an accredited nonpublic school, the person designated as chief administrative officer by the governing authority of the school.

(f) “Federal law” means the individuals with disabilities education act, section 504 of the rehabilitation act, the gun-free schools act of 1994, and regulations adopted pursuant to such acts.

(g) “Secretary of education” means the secretary of the United States department of education.

(h) (1) “Weapon” means: (A) Any weapon which will or is designed to or may readily be converted to expel a projectile by the action of an explosive; (B) the frame or receiver of any weapon described in the preceding example; (C) any firearm muffler or firearm silencer; (D) any explosive, incendiary, or poison gas: (i) Bomb; (ii) grenade; (iii) rocket having a propellant charge of more than four ounces; (iv) missile having an explosive or incendiary charge of more than 1/4 ounce; (v) mine; or (vi) similar device; (E) any weapon which will, or which may be readily converted to, expel a projectile by the action of an explosive or other propellant, and which has any barrel with a bore of more than 1/2 inch in diameter; (F) any combination of parts either designed or intended for use in converting any device into any destructive device described in the two immediately preceding examples, and from which a destructive device may be readily assembled; (G) any bludgeon, sandclub, metal knuckles or throwing star; (H) any knife, commonly referred to as a switch-blade, which has a blade that opens automatically by hand pressure applied to a button, spring or other device in the handle of the knife, or any knife having a blade that opens or falls or is ejected into position by the force of gravity or by an outward, downward or centrifugal thrust or movement; or (I) any electronic device designed to discharge immobilizing levels of electricity, commonly known as a stun gun.

(2) The term “weapon” does not include within its meaning: (A) An antique firearm; (B) an air gun; (C) any device which is neither designed nor redesigned for use as a weapon; (D) any device, although originally designed for use as a weapon, which is redesigned for use as a signaling, pyrotechnic, line throwing, safety or similar device; (E) surplus ordinance sold, loaned or given by the secretary of the army pursuant to the provisions of section 4684(2), 4685 or 4686 of title 10 of the United States Code; or (F) class C common fireworks.

(i) “Air gun” means any device which will or is designed to or may be readily converted to, expel a projectile by the release of compressed air or gas, and which is of 0.18 caliber or less and has a muzzle velocity that does not exceed 700 feet per second.

(j) “Organization” means any profit or nonprofit association, whether school-sponsored or community-based, whose primary purpose is to provide youth development by engaging individuals under the age of 18 in activities designed to promote and encourage self-confidence, teamwork and a sense of community.