Act of June 14, 1934, referred to in subsec. (a), is act June 14, 1934, ch. 521,
48 Stat. 960, which was not classified to the Code.
1988—Subsec. (f).
Pub. L. 100–666 designated existing provisions as par. (1) and added pars. (2) and (3).
1980—Subsecs. (c) to (f).
Pub. L. 96–305 added subsecs. (c) to (f).