(a) Location. The following area is a safety zone: All waters of the Columbia River at Vancouver, Washington bounded by a line commencing at the northern base of the Interstate 5 highway bridge at latitude 4537" 16.5 N, longitude 12240" 22.5' W; thence south along the Interstate 5 highway bridge to Hayden Island, Oregon at latitude 4536" 51.5 N, longitude 12240" 39 W; thence east along Hayden Island to latitude 4536" 36 N, longitude 12239" 48 W (not to include Hayden Bay); thence north across the river thru the preferred channel buoy, RG Fl(2+1)R 6s, to the Washington shoreline at latitude 4537" 1.5 N, longitude 12239" 29 W; thence west along the Washington shoreline to the point of origin.
(b) Regulations. In accordance with the general regulations in Sec. 165.23 of this part, no person or vessel may enter or remain in this zone unless authorized by the Captain or the Port or his designated representatives.
(c) Authority. In addition to 33 U.S.C. 1231, the authority for this section includes 33 U.S.C. 1226.
(d) Enforcement period. This section will be enforced every July 4, from 9:30 p.m. (P.D.T.) to 11 p.m. (P.D.T.). [CGD13-03-001, 68 FR 31610, May 28, 2003]