The Coast Guard will enforce the special local regulations for the Seattle Seafair Unlimited Hydroplane Race from 8 a.m. to 5 p.m. each day from August 2 through August 4, 2024, to provide for the safety of life on navigable waterways during this event. The regulation for this event identifies the regulated area on Lake Washington, Seattle, Washington. During the enforcement periods, vessels and persons in the regulated area must comply with the lawful directions from the Coast Guard designated Patrol Commander, the established Coast Guard patrol, and any federal, state, and local law enforcement agencies assisting the Patrol Commander.
Source: Federal Register USCG
Link: Special Local Regulation, Seattle Seafair Unlimited Hydroplane Race