; (2) a State, local, Tribal, or Federal law enforcement officer or the agent of such officer when carrying out a statutory duty unrelated to the management of wildlife; or (3) an active member of the United States military when carrying out official duties. (d) Penalties A person that knowingly violates subsection (a)— (1) for the first violation, may be assessed a fine by the Secretary of not more than $500; and (2) for a second or subsequent violation, shall be assessed a fine by the Secretary of not less than $1,000 and not more than $5,000. (e) Definitions In this section: (1) Ammunition The term ammunition means any bullet, ball, sabot, slug, buckshot, shot, pellet, or other projectile that is expelled from a firearm through a barrel by force. (2) Chief The term Chief means the Chief of the Forest Service. (3) Explosive The term explosive has the meaning given such term in section 844 of title 18, United States Code. (4) Firearm The term firearm means any weapon which expels ammunition by the action of an explosive or compressed air. (5) Nonlead ammunition The term nonlead ammunition means ammunition in which there is no lead content, excluding the presence of trace amounts of lead. (6) Secretary The term Secretary means the Secretary of Agriculture. (7) Trace amounts The term trace amounts means one percent or less by weight of the total weight of the ammunition.