WASHINGTON » The chief U.S. auto safety regulator says Fiat Chrysler will face sanctions for violating safety laws in multiple recalls.

National Highway Traffic Safety Administration chief Mark Rosekind says the agency will act before Labor Day and that the automaker will face enforcement action.

But Rosekind, speaking to reporters after a public hearing on Fiat Chrysler’s handling of 23 recalls, wouldn’t say more until a comment period closes on July 17.

"There’s a pattern that’s been going on for some time," Rosekind said, referring to the automaker’s conduct. "It’s the law; this is what you’re supposed to follow."

Rosekind said a number of options for agency action are "on the table," including fines against the company and requiring it to buy back vehicles subject to recall.