effluent standard or limitation under this chapter
For purposes of this section, the term “effluent standard or limitation under this chapter” means (1) effective July 1, 1973 , an unlawful act under subsection (a) of section 1311 of this title ; (2) an effluent limitation or other limitation under section 1311 or 1312 of this title; (3) standard of performance under section 1316 of this title ; (4) prohibition, effluent standard or pretreatment standards under section 1317 of this title ; (5) a standard of performance or requirement under section 1322(p) of this title ; (6) a certification under section 1341 of this title ; (7) a permit or condition of a permit issued under section 1342 of this title that is in effect under this chapter (including a requirement applicable by reason of section 1323 of this title ); or (8) a regulation under section 1345(d) of this title .