Section 147.1104 - Platform ELLEN & ELLY safety zone(a)Description: The areas within a line 500 meters from each point on the outer edge of each structure. The structures are approximately 120 meters apart. The position of the center of each structure is: Platform Ellen, 33°-34'-57" N, 118°-07'-42" W; and Platform Elly, 33°-35'-00" N, 118°-07'-40" W.(b)Regulations: No vessel may enter or remain in this safety zone except the following:(1) An attending vessel serving either structure,(2) a vessel under 100 feet in length overall not engaged in towing, or(3) a vessel authorized by the Commander, Eleventh Coast Guard District.CCGD 11-79-02, 47 FR 39679, Sept. 9, 1982; 48 FR 33263, July 21, 1983