A precautionary area has been established in the Los Angeles - Long Beach area. Large vessels are maneuvering to embark or disembark pilots, and to enter or depart the traffic separation system. It is recommended vessels proceed with extreme caution in the area, there is a mandatory 12 knot speed limit. Vessels are prohibited from anchoring in the precautionary area except in designated anchorages (110.214-see note A). Navigation regulations are published in Chapter 2, U.S. Coast Pilot 7. Additions or revisions to Chapter 2 are pub- lished in the Notices to Mariners. Information concerning the regulations may be obtained at the Office of the Commander, 11th Coast Guard District in Alameda, California, or at the Office of the District Engineer, Corps of Engineers in Los Angeles, California. Refer to charted regulation section numbers.