2022—Subsec. (b)(4). Pub. L. 117–167, § 10102(b)(1), added par. (4) and struck out former par. (4). Prior to amendment, text read as follows: “No funds allocated to the program described in paragraph (1) may be obligated or expended for commercial application of energy technology.”

Subsec. (c)(4). Pub. L. 117–167, § 10102(b)(2), added par. (4) and struck out former par. (4). Prior to amendment, text read as follows: “No funds allocated to the program described in paragraph (1) may be obligated or expended for commercial application of energy technology.”

2018—Pub. L. 115–246 amended section generally. Prior to amendment, section related to catalysis research program.