The request by the Council comes after three recent deaths at BART stations.
The most publicized the fatal stabbing of 18-year-old Nia Wilson by a transient at MacArthur station.
#DearBART: Sound off on train safety, cleanliness
At Bay Fair Station a man was killed after another assault. And at Pleasant Hill station another death after an attack.
BART has now ordered its officers to work longer days and spend a normal day off riding trains and on platforms.
All this while BART police is faced with a serious staffing shortage.
RELATED: Family of Oakland BART stabbing victim suing transit agency
"Cities that are served by BART that benefit from BART service could provide local police resources that help supplement BART's force," Rufus Jeffris of The Bay Area Council said.
But, BART said in a written statement, "The collective bargaining agreements make clear that only BART police may provide security at BART. But that doesn't mean another agency can't respond to an ongoing incident if we need their assistance."
BART's former police chief Gary Gee tells ABC7 that mutual aid has been used during emergencies. He says BART could be in one now. "If this were an emergency staffing situation, I believe BART could call this as an exception."
The BART police union responded with a statement saying in part that they have now "saturated" the system with their presence. "Having officers who know our system patrol it is the best way to address the issue. Taking resources from other agencies would not be fair to the communities they serve," the statement read.
Find more stories on BART here.
Go here for full coverage on the stabbing at Oakland's MacArthur BART station that took the life of 18-year-old Nia Wilson.
CONTINUING COVERAGE ON DEADLY BART STABBING:
- What we know about deadly stabbing at Oakland's MacArthur BART station
- 'Remember Her' A tribute to Nia Wilson
- Celebrities share grief, sorrow for BART stabbing victim Nia Wilson
- Here's how you can help the family of BART stabbing victim Nia Wilson
- Chilling dispatch call describes terrifying fatal MacArthur BART stabbing
- 'He was wiping off his knife': BART stabbing victim recalls horrific attack that killed sister
- Heartbroken father demands justice after daughter stabbed at BART station
- 'Stand down': BART stabbing victim's godfather makes plea to black community
- TIPS: How to stay safe on BART
- Bart releases info on pair of homicides