The Bay Area's ferry-primary commuter backbone, a product of the 2003 Bay Bridge decision, has operated without significant ocean-condition disruptions for over two decades. That record is now under review. Council transport and environment staff have identified three near-term operational risks from continued ocean warming: accelerated hull biofouling that increases maintenance costs and reduces fuel efficiency, shifts in the temperature differentials that drive Bay fog and affect visibility windows, and an increased frequency and intensity of harmful algal blooms that can force mandatory ferry closures under existing environmental health protocols. All suspensions under current rules are made by human operators and crew, not automated systems. A draft resilience protocol is expected from the Marine Transit Working Group by October.