16 U.S.C. § 718a: Prohibition on taking

Except as provided in paragraph (2), no individual who has attained the age of 16 years shall take any migratory waterfowl unless, at the time of the taking, the individual carries on the person of the individual a valid Migratory Bird Hunting and Conservation Stamp, as an electronic stamp (as defined in section 718 o of this title) or validated by the signature of the individual written in ink across the face of the actual stamp (as defined in that section) prior to the time of the taking by the individual of the waterfowl. by Federal or State agencies; for propagation; by the resident owner, tenant, or sharecropper of the property, or officially designated agencies of the Department of the Interior, for the killing, under such restrictions as the Secretary may by regulation prescribe, of such waterfowl when found damaging crops or other property; or by a rural Alaska resident for subsistence uses (as that term is defined in section 3113 of this title ). any officer or employee of the Department of the Interior who is authorized to enforce this subchapter; or any officer of any State or political subdivision of a State authorized to enforce State game laws. Nothing in this section requires any individual to affix the Migratory Bird Hunting and Conservation Stamp to any other license prior to taking 1 or more migratory waterfowl.