The California Constitution establishes the Public Utilities Commission, authorizes the commission to establish rules for all public utilities, subject to control by the Legislature, and authorizes the Legislature, unlimited by the other provisions of the California Constitution, to confer additional authority and jurisdiction upon the commission that is cognate and germane to the regulation of public utilities. The Public Utilities Act provides the commission with broad authority over public utilities, including electrical corporations. Existing law establishes standards that are applicable to any person, as defined, to run, place, erect, or maintain wires or cables used to conduct electricity and requires the commission to enforce these standards. Pursuant to its existing authority, the commission has adopted rules for the construction of electrical lines and the trimming of trees near electrical lines.

Except as specified, existing law requires any person that owns, controls, operates, or maintains any electrical transmission or distribution line upon any mountainous, forest-covered, brush-covered, or grass-covered land to maintain a clearance in all directions between all vegetation and all conductors that are carrying electric current, as prescribed.

This bill would require the commission, in consultation with the Department of Forestry and Fire Protection, to prioritize areas in which communities are subject to conditions that increase fire hazards associated with overhead utility facilities when determining areas in which it will require enhanced mitigation measures for wildfire hazards posed by overhead electrical lines and equipment. The bill would require the commission to develop a definition of “enhanced mitigation measures” for these purposes. The bill, as part of any findings supporting a decision to approve the boundaries for those areas, would require the commission to describe how the commission incorporated the concerns of local governments, fire departments, or both in determining those boundaries.