The narrow but significant question was whether California's occupational safety regulations, specifically the Cal-OSHA exemption for household domestic service found in Labor Code section 6303(b), excused a homeowner acting as an owner-builder from Cal-OSHA safety standards during a significant remodeling project. The Court of Appeal had ruled that the exemption applied, meaning Cal-OSHA violations could not even be introduced as evidence of negligence. The California Supreme Court disagreed, holding that substantial remodeling work involving demolition, rebuilding, and structural changes is not household domestic service, even when undertaken by a homeowner purely for personal, non-commercial enjoyment of the property. The Court reversed the Court of Appeal and remanded the case for further proceedings. The published opinion is Cortez v. Abich, 51 Cal.4th 285 (2011).