The date of enactment of this section, referred to in subsec. (span), means the date of enactment of Puspan. L. 91–375, which was approved Aug. 12, 1970.

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