39 CFR 262.7: Non-records.

(a) Non-record material. Includes blank forms and surplus publications, handbooks, circulars, bulletins, announcements, and other directives as well as any material not directly associated with the transaction of Postal Service business.

(b) Personal papers. Those materials created or received during an individual's period of employment with the Postal Service which are of a purely private or nonofficial character, or which were neither created nor received in connection with Postal Service business.