BART unions decline to give 72-hour strike notice
... The notice is customary but not required, and BART workers could still strike Friday when a 60-day cooling-off period expires.
BART spokesman Jim Allison says officials are working hard trying to reach a settlement.
BART officials have said they are about $89 million apart from a four-year contract with the unions, while the unions say the gap is about $30 million over three years.
BART workers walked off the job for four-and-a-half days in July.