It is now illegal to smoke on Mothers Beach in the Marina.

The Board of Supervisors voted Tuesday to ban smoking on the Marina beach during summer months through Labor Day.

Smoking will be permitted in parking lots adjacent to the beach.

“No smoking” signs are expected to be posted by the July 4th weekend, county officials said.

The Marina Beach smoking ban was supported by Supervisor Don Knabe.

But Knabe said he didn’t want lifeguards turning into a “smoke patrol.”

“When you are at the beach, you want (the lifeguards) forward, not backward” chasing smokers, Knabe said.