FILE - In this Aug. 13, 2019, file photo, California Gov. Gavin Newsom, second from right, tours the solar panels atop the building housing the California Environmental Protection Agency, accompanied by Attorney General Xavier Becerra, left, California Air Resources Board Chair Mary Nichols, and California EPA Director Jared Blumenfeld, right, in Sacramento, Calif. Nichols' term leading the state ARB ends in December 2020. She's held the role since 2007 after an earlier stint as chair in the early 1980s. (AP Photo/Rich Pedroncelli, File)
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