40 CFR § 1700.7
No-discharge zones
June 9, 2020
For this part, a no-discharge zone is a waterbody, or portion thereof, where one or more discharges incidental to the normal operation of Armed Forces vessels, whether treated or not, are prohibited. A no-discharge zone is established either by State prohibition using the procedures in §1700.9, or by EPA prohibition, upon application of a State, using the procedures in §1700.10.