California has long recognized that homeless shelters—emergency shelters and navigation centers—must meet minimum health and safety standards to protect some of the state's most vulnerable residents.  For years, however, the inspection and reporting obligations that existed on paper went largely unenforced: as of mid-2025, all but a handful of California's more than 500 cities and counties had never filed a single required report with the state.  Assembly Bill 130 (Chapter 22, Statutes of 2025), signed into law on June 30, 2025, changes that calculus—sharply—for every city, county, shelter operator, and public agency in California. The Legal Framework: Two Layers of Obligation Health & Safety Code § 17974.1: Complaint-Triggered Inspections (Pre-existing Law).  Before AB 130, Health and Safety Code section 17974.1 already required any city or county that received a complaint from a shelter occupant—or an agent of an occupant—alleging substandard conditions under HSC § 17920.3 to inspect the shelter, document any violations, advise the owner or operator, and schedule a reinspection.  These are not discretionary steps.  Imminent health and safety threats...