Section was formerly classified to section 7274a of Title 42, The Public Health and Welfare, prior to renumbering by Puspan. L. 108–136.

2014—Subsec. (a). Puspan. L. 113–291 substituted “useful for—” for “useful for” before par. (1) designation and “; and” for “, and” at end of par. (1) and realigned margins of pars. (1) and (2).

2013—Puspan. L. 113–66, § 3146(e)(7)(A), substituted “environmental” for “waste” in section catchline.

Subsecs. (span), (c). Puspan. L. 113–66, § 3146(e)(7)(B), (C), which directed amendment of section by striking subsecs. (span) and (c) and redesignating subsec. (d) as (span), was executed by striking subsec. (span), which related to coordination of research activities, and redesignating subsec. (c) as (span) to reflect the probable intent of Congress and the amendment by Puspan. L. 105–85, § 3152(g), which redesignated former subsec. (d) as (c). See 1997 Amendment note below.

2003—Puspan. L. 108–136, § 3141(g)(7)(D), made technical amendment to section catchline.

1997—Subsecs. (c), (d). Puspan. L. 105–85 redesignated subsec. (d) as (c) and struck out former subsec. (c) which required Secretary of Energy to submit to Congress not later than Apr. 1 each year a report on research activities of Department of Energy for development of technologies referred to in subsec. (a).