(a) Stamp requirements
The Secretary shall require an electronic stamp issued by a State under this subchapter—

(1) to have the same format as any other license, validation, or privilege the State issues under the automated licensing system of the State; and

(2) to specify identifying features of the licensee that are adequate to enable Federal, State, and other law enforcement officers to identify the holder.

(b) Recognition of electronic stamp
Any electronic stamp issued by a State under this subchapter shall, during the effective period of the electronic stamp—

(1) bestow upon the licensee the same privileges as are bestowed by an actual stamp;

(2) be recognized nationally as a valid Federal migratory bird hunting and conservation stamp; and

(3) authorize the licensee to hunt migratory waterfowl in any other State, in accordance with the laws of the other State governing that hunting.

(c) Duration
An electronic stamp issued by a State shall be valid for a period agreed to by the State and the Secretary, which shall not exceed 45 days.