2023—Pub. L. 117–355 designated existing provisions as subsec. (a), inserted heading, and added subsec. (b).

2004—Pub. L. 108—454 inserted “exchange,” after “agencies,”.

1991—Pub. L. 102–83 renumbered section 1006 of this title as this section.

1989—Pub. L. 101–237 substituted “Secretary” for “Administrator” wherever appearing.

1986—Pub. L. 99–576 substituted “the Administrator” for “he”.