Restaurant operators and business advocates mobilized Tuesday to try to persuade California Gov. Gavin Newsom to veto a bill that would set wages for fast-food workers, a move they said could increase costs and set a precedent other states and cities might follow.

The effort is being pushed by franchise owners, including many who would have to take on the cost of paying workers a minimum wage as high as $22 an hour starting next year, set by a government-run council created by the bill. Chains that operate their own restaurants, such as Starbucks Corp., Chipotle Mexican Grill Inc. and In-N-Out Burger, would also be affected.