Postal Service Amendments Act

Postal Service Amendments Act - Requires the Postal Service to maintain through October 1, 1982, a postal rate not to exceed 15 cents for the first ounce and 13 cents for each additional ounce for ordinary letters sealed against inspection which are mailed by individuals. Subjects violators of usage of such postal rate to a civil penalty not to exceed $500.

Empowers the President to designate the Chairman of the Board of Governors of the Postal Service. Sets forth the duties of the Board which include providing the public with an annual report of the costs and revenues received for each class of mail.

Requires the Postal Service to submit to Congress a plan for a research and development program for improving operations by January 15, 1979. Directs the Postal Service and the Postal Rate Commission to transmit a copy of any proposal or recommendation for a change in postal rates or services to the appropriate congressional committees.

Defines "attributable costs" as used to determine postal rates.

Requires the Postal Rate Commission to: (1) study alternative methods of apportioning postal costs; (2) prepare a system of accounts for identifying the costs of each class of mail; and (3) report its findings to Congress by September 30, 1980.

Establishes the Task Force on the Mail and Communications to study and make recommendations on the application of new technologies to postal services.

Authorizes appropriations to the Postal Service for fiscal years 1979 - 1982.