Section 300.300 - Phase I-Discovery or notification(a) A discharge of oil may be discovered through:(1) A report submitted by the person in charge of a vessel or facility, in accordance with statutory requirements;(2) Deliberate search by patrols;(3) Random or incidental observation by government agencies or the public; or(b) Any person in charge of a vessel or a facility shall, as soon as he or she has knowledge of any discharge from such vessel or facility in violation of section 311(b)(3) of the CWA, immediately notify the NRC. If direct reporting to the NRC is not practicable, reports may be made to the USCG or EPA predesignated OSC for the geographic area where the discharge occurs. The EPA predesignated OSC may also be contacted through the regional 24-hour emergency response telephone number. All such reports shall be promptly relayed to the NRC. If it is not possible to notify the NRC or predesignated OSC immediately, reports may be made immediately to the nearest Coast Guard unit. In any event such person in charge of the vessel or facility shall notify the NRC as soon as possible.(c) Any other person shall, as appropriate, notify the NRC of a discharge of oil.(d) Upon receipt of a notification of discharge, the NRC shall promptly notify the OSC. The OSC shall ensure notification of the appropriate state agency of any state which is, or may reasonably be expected to be, affected by the discharge. The OSC shall then proceed with the following phases as outlined in the RCP and ACP.