Regulations last checked for updates: Apr 30, 2025

Title 40 - Protection of Environment last revised: Nov 30, 2025
All TitlesTitle 40Chapter IPart 139Subpart C - Subpart C—Standards for Specific Discharges Incidental to the Normal Operation of a Vessel
View all text of Subpart C [§ 139.10 - § 139.29]
§ 139.23 - Inert gas systems.

There are no additional discharge-specific requirements that apply to the discharge of washwater from an inert gas system and deck seal water when used as an integral part of that system.

authority: 33 U.S.C. 1251
source: 89 FR 82131, Oct. 9, 2024, unless otherwise noted.
cite as: 40 CFR 139.23
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