California's top insurance regulator on Friday said he would approve an emergency request by State Farm to raise premiums 22% on home insurance for about a million customers if the insurance giant could justify the hike at a public hearing.

California’s insurance commissioner said his approval was conditioned on State Farm justifying its need for the increase by bringing data to a public hearing on April 8.

It’s unclear how much premiums could go up in the Bay Area or which parts of the region would see the largest rate hikes. Statewide, the insurer covers roughly 15% of homes, totaling more than 1

The approval comes months after devastating wildfires, and will add an average $600 a year to homeowners’ bills.

Consumer Watchdog, a consumer advocacy group that opposed State Farm’s request, said the 22% increase could equate to an additional $600 annually for homeowners.