The Coast Guard will enforce the special local regulations for the annual Opening Day on the San Francisco Bay Boat Parade on April 28, 2024, to provide for the safety of life on navigable waterways in the San Francisco Bay during this event. Our regulation for marine events in Northern California identifies the regulated area for this event in San Francisco, CA. During the enforcement period, unauthorized persons or vessels are prohibited from entering into, transiting through, or loitering or anchoring in the regulated area, unless authorized by the designated Patrol Commander (PATCOM) or other law enforcement agencies on scene.
Source: Federal Register USCG
Link: Special Local Regulations; Northern California and Lake Tahoe Area Annual Marine Events; Opening Day on San Francisco Bay, San Francisco, CA