"The policy is basically a primer for police officers about how to treat transgender folks with respect. It's pretty simple," said Turner.

Mark Smith, BART's independent police auditor, said the policy was proposed by a member of the review board following a training session that he and some members of the police staff attended.

The draft policy instructs officers to call transgender people by their preferred names and pronouns that match their gender identity. It's all too common, Turner said, for officers or security guards to use pronouns that match what they think a person's assigned sex was at birth.

"That kind of thing can be really harmful, painful and abusive," said Turner. "This policy makes clear that that's not appropriate."

The proposed policy also states that "under no circumstances may an officer frisk, search or otherwise touch any person for the purpose of obtaining information about that person's transgender status."

That includes prohibiting officers from removing any items of clothing, wigs or prosthetics from a transgender person if they wouldn't do the same for a non-transgender person, said Turner.

Smith said BART officials did some research and found only a handful of law enforcement agencies have implemented policies on how to interact with transgender people.

The guidelines would become part of BART's police manual, and officers would be required to "learn it, be responsible for following it and be subject to misconduct if they violate it," Smith said.

The policy, according to a BART press release, does not "deal extensively" with "housing suspects, or how they are accommodated long-term, because BART Police generally remove suspects to facilities in the jurisdiction where issues occur, which have their own policies."

Asked if it would also require officer training, Smith said that would be a next step after the policy is adopted. It is ultimately up to BART's police chief to adopt the policy, but Smith said he has been supportive and involved in drafting it.

“Adopting a policy isn’t going to eliminate problems overnight,” Harper Jean Tobin, policy director of the National Center for Transgender Equality, was quoted as saying. “But the larger changes that need to happen can’t happen without these kinds of actions.”