BART's Board of Directors voted 8-1 on a vaccine mandate, requiring all BART employees to be vaccinated by December 13th. Those who do not comply are at risk for being fired.
According to the San Francisco Chronicle, 833 out of 4,000+ employees are still unvaccinated.
Officials said that a vaccine mandate is "the best way to protect the riding public and ensure rail service remains uninterrupted in the long run."
More information available here.