Proposed conditions— A State or interstate agency designated as a participating agency pursuant to paragraph (2) may propose to the Commission terms or conditions for inclusion in an authorization under section 3 of the Natural Gas Act (
15 U.S.C. 717b) or a certificate of public convenience and necessity under section 7 of such Act (
15 U.S.C. 717f) that the State or interstate agency determines are necessary to ensure that any activity described in paragraph (2) conducted pursuant to such authorization or certification will comply with the applicable provisions of sections 301, 302, 303, 306, and 307 of the Federal Water Pollution Control Act (
33 U.S.C. 1311, 1312, 1313, 1316, 1317).