CA SB1516

Requires state agencies and public entities to include "or equal" language in public works bid specifications to allow substitution of equivalent materials, products, or services unless specific exemptions apply.

Establishes that data demonstrating equivalency must be submitted after contract award, with a default 35-day submission period if no timeframe is specified.

Permits bid solicitations to require pre-bid submission of equivalency data only if the solicitation establishes a formal procedure for submission, evaluation, and determination completed at least 10 business days before the bid deadline, with all submissions kept confidential until contract award.

Places burden of proof on the proponent of a proposed equal item to demonstrate equivalency, with prevailing parties in litigation entitled to recover reasonable attorney's fees and expert costs.

Maintains exemptions allowing specific brand or trade name designation for field tests, matching existing products, sole-source items, and declared emergencies.