Hydrogen pipeline safety.

Senator Archuleta's hydrogen pipeline safety legislation establishes California's first comprehensive regulatory framework for dedicated hydrogen pipelines, directing the Office of the State Fire Marshal to develop and enforce statewide safety standards by January 2028.

The measure requires dedicated hydrogen pipelines to incorporate continuous measurement and monitoring systems for leak detection, use materials certified by the American Society of Mechanical Engineers for hydrogen compatibility, and maintain hydrogen leakage at the lowest technically feasible level. Pipeline owners must document hydrogen concentration levels and any confirmed leaks, submitting annual compliance reports to the State Fire Marshal by March 30. The legislation defines dedicated hydrogen pipelines as those constructed or retrofitted after the standards take effect that carry more than 90 percent hydrogen gas by volume.

The Office of the State Fire Marshal must periodically review and update these standards to reflect technological advances and industry practices while ensuring consistent enforcement across jurisdictions. The measure preserves the Public Utilities Commission's existing authority over utility rates and safety practices, specifying that when standards conflict, the more protective requirements apply.