CA SB431

Adds "utility workers" to the list of protected professionals for whom assault or battery while performing their duties carries enhanced penalties of up to one year in county jail, a fine up to $2,000, or both

Defines "utility worker" as a person employed by or contracting with an investor-owned or publicly owned water corporation, electrical corporation, gas corporation, or electric cooperative who performs construction, alteration, demolition, installation, maintenance, or repair of water, electrical, or gas infrastructure

Amends Penal Code Sections 241 (assault) and 243 (battery) to include utility workers alongside existing protected categories such as peace officers, firefighters, emergency medical technicians, and healthcare workers

Replaces broader previous language covering "public utility employees" and workers engaged in "essential infrastructure work" with the more specific "utility worker" definition

Creates a state-mandated local program by expanding the scope of criminal offenses, though no state reimbursement is required for costs related to new crime definitions