§403. General duties
(a) The Postal Service shall plan, develop, promote, and provide adequate and efficient postal services at fair and reasonable rates and fees. The Postal Service shall receive, transmit, and deliver throughout the United States, its territories and possessions, and, pursuant to arrangements entered into under sections 406 and 411 of this title, throughout the world, written and printed matter, parcels, and like materials and provide such other services incidental thereto as it finds appropriate to its functions and in the public interest. The Postal Service shall serve as nearly as practicable the entire population of the United States.
(b) It shall be the responsibility of the Postal Service-
(1) to maintain an efficient system of collection, sorting, and delivery of the mail nationwide;
(2) to provide types of mail service to meet the needs of different categories of mail and mail users; and
(3) to establish and maintain postal facilities of such character and in such locations, that postal patrons throughout the Nation will, consistent with reasonable economies of postal operations, have ready access to essential postal services.
(c) In providing services and in establishing classifications, rates, and fees under this title, the Postal Service shall not, except as specifically authorized in this title, make any undue or unreasonable discrimination among users of the mails, nor shall it grant any undue or unreasonable preferences to any such user.
(
Amendments
1979-Subsec. (a).
Effective Date of 1979 Amendment
Amendment by
Effective Date
Section effective Jan. 20, 1971, pursuant to Resolution No. 71–10 of the Board of Governors. See section 15(a) of
Continuation of Mail Delivery Services
Provisions requiring continuation of six-day delivery and rural delivery of mail at not less than the 1983 level were contained in the following appropriations acts:
Prohibition of 9-Digit ZIP Code
"(a) The Postal Service shall not implement any ZIP code system using more than 5 digits before October 1, 1983. This subsection shall not be construed as precluding the Postal Service or the Postal Rate Commission from taking such actions as may be required before October 1, 1983, to prepare for the implementation of such a ZIP code system.
"(b) During the period beginning on the date of the enactment of this Act [Aug. 13, 1981] and ending December 31, 1982, no Executive agency shall take any action to conform its mailing procedures to those appropriate for use under any ZIP code system using more than 5 digits. As used in this subsection, the term 'Executive agency' has the same meaning given such term by section 105 of title 5, United States Code."