The California Public Utilities Commission (CPUC) has proposed regulations to strengthen oversight of the state’s investor-owned utilities.

The proposal, which would need to be approved by CPUC commissioners, would establish specific metrics to evaluate Pacific Gas and Electric Co. (PG&E) operational safety performance. It would also adopt 10 safety performance metrics, building on those previously adopted, for PG&E, as well as Southern California Edison and Sempra’s Southern California Gas Co. and San Diego Gas & Electric. Additionally, it would modify 19 existing safety performance metrics.

PG&E is under scrutiny for its potential role in causing several North California wildfires, including the Dixie fire, considered the second largest in state history. To strengthen its...