Section 165.1335 - Security Zone; Vessels Carrying Hazardous Cargo, Sector Columbia River Captain of the Port Zone(a)Location. The following area is a security zone: All waters within 500 yards, in all directions, of any vessel carrying hazardous cargo, as determined by the Captain of the Port (COTP) Columbia River, while such a vessel is located in the Sector Columbia River COTP Zone as defined in 33 CFR 3.65-15 and the COTP Columbia River determines that a security zone is necessary and enforcement of the security zone is practicable.(b)Regulations.(1) In accordance with the general regulations in 33 CFR part 165 , Subpart D, no person or vessel may enter or remain in a security zone created by this section without the permission of the COTP Columbia River or his/her designated representative. Designated representatives are Coast Guard personnel authorized by the COTP Columbia River to grant persons or vessels permission to enter or remain in a security zone created by this section. Subpart D of 33 CFR part 165 contains additional provisions applicable to a security zone created by this section.(2) To request permission to enter a security zone created by this section, contact Coast Guard Sector Columbia River at telephone number 503-861-6212 or via VHF channel 16 (156.8 MHz) or VHF channel 22 (157.1 MHz).(c)Notification. When a security zone is created by this section, one or more Coast Guard vessels will be present to enforce the security zone and the COTP Columbia River will issue a local broadcast notice to mariners.USCG-2009-1134, 76 FR 28317, May 17, 2011