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Regulations last checked for updates: Jun 15, 2025
Title 40 - Protection of Environment last revised: Nov 15, 2025
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Title 40
Chapter I
Part 230
Subpart C - Subpart C—Potential Impacts on Physical and Chemical Characteristics of the Aquatic Ecosystem
§ 230.20 - Substrate.
§ 230.21 - Suspended particulates/turbidity.
§ 230.22 - Water.
§ 230.23 - Current patterns and water circulation.
§ 230.24 - Normal water fluctuations.
§ 230.25 - Salinity gradients.
authority:
33 U.S.C. 1251
source:
45 FR 85344, Dec. 24, 1980, unless otherwise noted.
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