33 C.F.R. § 153.203 Procedure for the notice of discharge.
Title 33 - Navigation and Navigable Waters
Any person in charge of a vessel or of an onshore or offshore facility shall, as soon as they have knowledge of any discharge of oil or a hazardous substance from such vessel or facility in violation of section 311(b)(3) of the Act, immediately notify the National Response Center (NRC), U.S. Coast Guard, 2100 Second Street, SW., Washington, DC 20593, toll free telephone number 800–424–8802 (in Washington, DC metropolitan area, 202–372–2428; fax number 202–372–2920). If direct reporting to the NRC is not practicable, reports may be made to the Coast Guard or EPA predesignated OSC for the geographic area where the discharge occurs. All such reports shall be promptly relayed to the NRC. If it is not possible to notify the NRC or the predesignated OSC immediately, reports may be made immediately to the nearest Coast Guard unit, provided that the person in charge of the vessel or onshore or offshore facility notifies the NRC as soon as possible. A report made under this section satisfies the reporting requirements of §151.15 of this chapter and of 46 CFR 4.05–1, if required under that provision. Note: Geographical jurisdiction of Coast Guard and EPA OSC's are specified in the applicable Regional Contingency Plan. Regional Contingency Plans are available at Coast Guard District Offices and EPA Regional Offices as indicated in Table 2. Addresses and telephone numbers for these offices are listed in Table 1. [CGD 84–067, 51 FR 17966, May 16, 1986, as amended by CGD 88–052, 53 FR 25121, July 1, 1988; USCG–2000–6927, 70 FR 74675, Dec. 16, 2005; USCG–2006–25150, 71 FR 39209, July 12, 2006]
Title 33: Navigation and Navigable Waters
PART 153—CONTROL OF POLLUTION BY OIL AND HAZARDOUS SUBSTANCES, DISCHARGE REMOVAL
Subpart B—Notice of the Discharge of Oil or a Hazardous Substance
§ 153.203 Procedure for the notice of discharge.

