CFR › Title 33 › Part 157 › §157.3133 CFR §157.31Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkNo person may use a chemical additive to circumvent the discharge requirements in §§ 157.27, 157.29, 157.37, 157.39, and 157.43.