It’s another first for San Francisco. The nanny-staters on the Board of Supervisors have voted to require cell phone stores to list the amount of radiation emitted by the phones — despite no scientific evidence that this is a problem. Can Chapel Hill be far behind?

John Walls, vice president of public affairs for CTIA — The Wireless Assn., said the San Francisco ordinance will confuse consumers.

“The ordinance will potentially mislead consumers with point-of-sale requirements suggesting that some phones are ‘safer’ than others based on radiofrequency (RF) emissions,” Walls said in a statement. “In fact, all phones sold legally in the U.S. must comply with the Federal Communications Commission’s safety standards for RF emissions.”

Walls also said that because of the vote, his trade group will pull its fall show from San Francisco after this October’s event. The group has met in the city in five of the last seven years.