Brown announced Wednesday that he is ordering an investigation of the contract dispute between the Alameda-Contra Costa Transit District and one of its unions.
AC Transit workers had given notice that they would walk off the job Thursday, and the 1,800-member union had made no promise to retract that notice. However, both sides agreed to resume talks Wednesday at 5 p.m.
Brown is appointing a board to investigate the strike notice, saying a strike could significantly disrupt public transportation and endanger the public's health, safety and welfare.
The AC Transit system carries about 100,000 people roundtrip each day.