Members of the Service Employees International Union Local 1021 and the Amalgamated Transit Union Local 1555 pledged to walk off the job Monday morning if a new labor agreement was not reached by midnight Sunday.
The unions, which represent 2,375 mechanics, custodians, station agents, clerical workers and train operators are seeking a raise of almost 12% over three years. BART has proposed a 10% increase over four years.
Workers from the two unions now earn about $71,000 on average and $11,000 in overtime annually.
BART workers went on strike for almost five days in July and were prepared to do so again Friday after a cooling-off period ordered by Gov. Jerry Brown ended. However, they agreed to negotiate through the weekend.