; (2) a State, local, Tribal, or Federal law enforcement officer or the agent of such officer when carrying out a statutory duty; and (3) an active member of the United States military when carrying out official duties. (d) Penalties A person that knowingly violates subsection (a) may be assessed a civil penalty by the Secretary of no more than $500 for the first violation. A second or subsequent violation shall be punishable by a fine of not less than $1,000 or 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) Director The term Director means the Director of the United States Fish and Wildlife 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 the Interior. (7) Trace amounts The term trace amounts means one percent or less by weight of the total weight of the ammunition.