1968—Pub. L. 90–623 substituted “For the purposes of this subchapter” for “For the purposes of this Act”.

Amendment by Pub. L. 90–623 intended to restate without substantive change the law in effect on Oct. 22, 1968, see section 6 of Pub. L. 90–623, set out as a note under section 5334 of this title.

Section 2 of Pub. L. 90–291 provided that: “The amendments made by section 1 of this Act [enacting this section and sections 8192 and 8193 of this title] are effective only with respect to personal injuries sustained on or after the date of enactment of this Act [Apr. 19, 1968].”