Pub. L. 86-682, tit. 39, pt. I, ch. 5, sec. 510
Disposal of wastepaper
§ 510. Disposal of wastepaper The Postmaster General, subject to the provisions of sections 366–380 of title 44, may sell as wastepaper or otherwise dispose of the files of papers that are not needed in the transaction of current business and have no permanent value or historical interest.