Section effective July 1, 1971, pursuant to Resolution No. 71–9 of the Board of Governors. See section 15(a) of Pub. L. 91–375, set out as a note preceding section 101 of this title.

Pub. L. 98–396, title III, § 303, Aug. 22, 1984, 98 Stat. 1422, provided that: “None of the funds made available to the United States Postal Service under this Act [see Tables for classification] or any other Act may be used to restructure employee compensation practices as in effect under the most recently effective collective bargaining agreement under section 1206 of title 39, United States Code, except in accordance with the results of procedures set forth in section 1207 of such title.”