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§ 257.4 Effective date.

40 CFR 257.4

Citation40 CFR 257.4
CorpusDaily eCFR
Displayed edition2026-09-24
Last updated2026-09-24

§ 257.4 Effective date.

These criteria become effective October 15, 1979.

Authority42 U.S.C. 6907(a)(3), 6912(a)(1), 6927, 6944, 6945(a) and (d); 33 U.S.C. 1345(d) and (e).
Source44 FR 53460, Sept. 13, 1979, unless otherwise noted.