16 U.S.C. § 718b: Sales; fund disposition; unsold stamps

any post office; and such other establishments, facilities, or locations as the Postal Service or the Secretary (or a designee) may direct or authorize. The funds received from the sale of stamps under this subchapter by the Department of the Interior shall be deposited in the Migratory Bird Conservation Fund in accordance with section 718d of this title . Except as provided in subsection (b), the Postal Service shall collect the full face value of each stamp sold under this section for the applicable hunting year. in compliance with Federal and State laws (including regulations); on the condition that the individual so taking the waterfowl wrote the signature of the individual in ink across the face of the stamp prior to the taking; and during the hunting year for which the stamp was issued. any individual or entity that is regularly engaged in the business of retailing hunting or fishing equipment; and any individual or entity duly authorized to act as an agent of a State or political subdivision of a State for the sale of State or county hunting or fishing licenses. were sold on consignment to any person authorized by the Secretary to sell stamps on consignment (including retail dealers for resale to customers); and have not been resold by any such person. sell on consignment any stamps issued under this subchapter to any individual, business, or organization; or redeem stamps issued under this subchapter that are sold on consignment by the Secretary (or any agent of the Secretary). amounts appropriated pursuant to this subchapter for the fiscal year ending in the immediately preceding calendar year; and the sale of stamps under this section during such fiscal year The Secretary may reduce the price of each stamp sold under the provisions of this section for a hunting year if the Secretary determines that the increase in the price of the stamp after hunting year 2013 resulted in a reduction in revenues deposited into the fund.