People who are living in their cars or RVs in San Francisco should soon have a place to go.

On Tuesday, the Board of Supervisors unanimously approved a pilot program — the Overnight Safe Parking Pilot Program — that will create a “triage center,” where people living in vehicles can park overnight and access showers and bathrooms. This location would also provide city services to help vehicle residents find other housing options.

“It’s not perfect but we have to start somewhere,” said Supervisor Vallie Brown, author of the ordinance. “We’ll be able to figure out what works and what doesn’t, and adjust as we go.”

Mayor London Breed has already committed $1 million toward funding the pilot program.

Now the Department of Homelessness and Supportive Housing and the Municipal Transportation Agency will have to come up with a way to waive fees related to parking citations and towing for those who qualify for the program.

No potential sites have been officially identified yet, but the city will have to propose one within three months.

Brown’s colleagues praised the ordinance as a creative way to help address the city’s homelessness crisis.

“It’s important that we realize that no one model is fit for everyone,” said Supervisor Rafael Mandelman. “We need a diversity of approaches.”

Also at Tuesday’s meeting, the board tabled an ordinance to reject the mayor’s Rent Board appointment, Reese Isbell, as he had already resigned from the position last week after tenants’ rights activists questioned his qualifications for the job.

Isbell will now serve as an alternate member of the board, which means he will participate in the board’s discussions and deliberations but will not be able to vote. The mayor appointed Kent Qian, a lawyer and current alternate member, to Isbell’s seat.

Tenants’ rights activists spoke out against Isbell after Breed appointed him last month to replace longtime member and attorney Polly Marshall. Critics worried about the lack of tenants’ rights experience on Isbell’s resume. But those in support of his appointment said the challenges he confronts as a renter in San Francisco should qualify him for the position.

Isbell told The Chronicle Tuesday that he is happy to serve on the Rent Board, whether or not he can vote.

“My initial interest in the board was to be able to speak out on issues as a renter struggling to survive in San Francisco,” Isbell said. “Whether or not that’s a voting position or an alternate is up to the mayor, and I’m happy to serve in either capacity.”

Isbell served as an aide to Mark Leno during his time in both the state Assembly and Senate. He was also a member of Breed’s transition team last year.

Trisha Thadani is a San Francisco Chronicle staff writer. Email: tthadani@sfchronicle.com Twitter: @TrishaThadani