Manufactured Housing Regulations
The Manufactured Housing regulations can be found in California Code of Regulations, Title 25, Division I, Chapter 3, Subchapter 2, commencing with section 4000. These regulations establish minimum design and construction standards for all multifamily manufactured homes and mobilehomes built before June 15, 1976, and commercial modular and special purpose commercial modulars to be sold, rented, or leased throughout the State. These regulations are preemptive over any local requirements. Manufactured homes constructed on or after June 15, 1967, are subject to federal laws and regulations. Alteration of existing manufactured homes bearing or required to bear a Housing and Urban Development (HUD) label; multifamily manufactured homes, and mobilehomes built on or before June 15, 1976; commercial modulars and special purpose commercial modulars bearing or required to bear a Department insignia are subject exclusively to Department regulation, plan review, and inspection throughout the State regardless of their location.
Federal regulations governing manufactured housing built on or after June 15, 1976, are located in Title 24, Code of Federal Regulations, beginning with Section 3282.1. Construction standards for manufactured homes manufactured on or after June 15, 1976, are found in Title 24, Code of Federal Regulations, Chapter XX, Part 3280 .
Federal Legal Authorities and Clarification
When federal rules (regulations) are in need of clarification, HUD issues interpretive Bulletins or B-Letters to clarify the requirements. For additional information on federal legal authorities, go to HUD’s Construction and Safety Program information.