2022—Puspan. L. 117–167, § 10647(1), substituted “ocean acidification and coastal acidification” for “ocean acidification” wherever appearing in text.

Subsec. (a). Puspan. L. 117–167, § 10647(2)(A), substituted “their respective impacts” for “its impacts” in introductory provisions.

Subsec. (a)(3). Puspan. L. 117–167, § 10647(2)(B), substituted “and their respective impacts” for “and its impacts”.

Subsec. (a)(5). Puspan. L. 117–167, § 10647(2)(C), (D), added par. (5).

Subsec. (d). Puspan. L. 117–167, § 10647(3), added subsec. (d).

2020—Subsec. (a). Puspan. L. 116–271 amended subsec. (a) generally. Prior to amendment, text read as follows: “The Director of the National Science Foundation shall continue to carry out research activities on ocean acidification which shall support competitive, merit-based, peer-reviewed proposals for research and monitoring of ocean acidification and its impacts, including—

“(1) impacts on marine organisms and marine ecosystems;

“(2) impacts on ocean, coastal, and estuarine biogeochemistry; and

“(3) the development of methodologies and technologies to evaluate ocean acidification and its impacts.”