Pub. L. 85-426, tit. I, sec. 104
identification of and appropriations for public services
identification of and appropriations for public services Sec. 104. (a) The following shall be considered to be public services for the purposes of this title— (1) the total loss resulting from the transmission of matter in the mails free of postage or at reduced rates of postage as provided by statute, including the following: (A) paragraph (3) of subsection (a) of section 202 of the Act of February 28, 1925 (39 U. S. C. 283 (a)(3)), relating to reduced rates of postage on newspapers or periodicals of certain nonprofit organizations; (B) sections 5 and 6 of the Act of March 3, 1877 (39 U. S. C. 321), relating to official mail matter of the Pan American Union sent free through the mails; (C) section 25 of the Act of March 3, 1879, as amended (39 U. S. C. 286), and subsection (b) of section 2 of the Act of October 30, 1951 (39 U. S. C. 289a (b)), relating to free-in-county mailing privileges; (D) the Act of April 27, 1904 (33 Stat. 313), the last paragraph under the heading “Office of the Third Assistant Post-master General” contained in the first section of the Act of August 24, 1912 (37 Stat. 551), and the Joint Resolution of June 7, 1924 (43 Stat. 668; Pub. Res., No. 33, Sixty-eighth Congress), as contained in the Act of October 14, 1941 (55 Stat. 737; Public Law 270, Seventy-seventh Congress), and as further amended by the Act of September 7, 1949 (63 Stat. 690), relating to free postage and reduced postage rates on reading matter and other articles for the blind (39 U. S. C. 331); 72 Stat. 137 (E) the Act of February 14, 1929 (39 U. S. C. 336), granting free mailing privileges to the diplomatic corps of the countries of the Pan American Postal Union; (F) the Act of April 15, 1937 (39 U. S. C. 293c), granting reduced rates to publications for use of the blind; (G) the Act of June 29, 1940 (39 U. S. C. 321–1), granting free mailing privileges to the Pan American Sanitary Bureau; (H) the Act of May 7, 1945 (59 Stat. 707), and other provisions of law granting free mailing privileges to individuals; (I) the second and third provisos of subsection (a) of section 2 of the Act of October 30, 1951 (65 Stat. 672; 39 U. S. C. 289a (a)), granting reduced second-class postage rates to publications of certain organizations; (J) the last proviso of section 3 of the Act of October 30, 1951 (65 Stat. 673; 39 U. S. C. 290a–1), granting reduced third-class postage rates to certain organizations; (K) section 302 of The Federal Voting Assistance Act of 1955 (5 U. S. C. 2192), granting free postage, including free airmail postage, to post cards, ballots, voting instructions, and envelopes transmitted in the mails under authority of such Act; and (L) section 204 (d) and (e) of the Postal Rate Revision and Federal Employees Salary Act of 1948, as amended (39 U. S. C. 292a (d) and (e)), including the amendment made by section 206 of this Act. (2) the loss resulting from the operation of such prime and necessary public services as the star route system and third- and fourth-class post offices; (3) the loss incurred in performing nonpostal services, such as the sale of documentary stamps for the Department of the Treasury; (4) the loss incurred in performing special services such as cash on delivery, insured mail, special delivery, and money orders; and (5) the additional cost of transporting United States mail by foreign air carriers at a Universal Postal Union rate in excess of the rate prescribed for United States carriers. (b) There is hereby authorized to be appropriated to the revenues of the Post Office Department for each fiscal year from any money in the Treasury not otherwise appropriated an amount, which shall be deemed to be attributable to the public services enumerated under subsection (a) of this section, equal to the total estimated expenditures of the Post Office Department for the year for such public services as determined by the Congress in the appropriation Act based upon budget estimates submitted to the Congress. Such appropriations shall be available to enable the Postmaster General to pay in to postal revenues at quarterly or other intervals such sums as may be necessary to reimburse the Post Office Department for such amount attributable to public services.