CHAPTER 4. Application and Scope [19990. - 19993.]

Cal. Health and Safety Code - HSC 4.

in effect

Cal. Health and Safety Code - HSC § 19990. Section 19990.

(a) Except as provided in Section 18930, the department shall adopt rules and regulations to interpret and make specific this part. The department shall adopt and submit building standards for approval pursuant to Chapter 4 (commencing with Section 18935) of Part 2.5 of this division for the purposes described in this section. Standards adopted, amended, or repealed from time to time by the department pursuant to this chapter shall include provisions imposing requirements reasonably consistent with recognized and accepted standards contained in the most recent editions of the following international or uniform industry codes as adopted or amended from time to time by the organizations specified: (1) The Uniform Housing Code of the International Conference of Building Officials. (2) The International Building Code of the International Code Council. (3) The International Residential Code of the International Code Council. (4) The Uniform Plumbing Code of the International Association of Plumbing and Mechanical Officials. (5) The Uniform Mechanical Code of the International Association of Plumbing and Mechanical Officials. (6) The National Electrical Code of the National Fire Protection Association. (b) The department shall require every city and county to file with the department all wind pressure and snow load requirements in effect within their respective jurisdictions if these requirements differ from building standards published in the State Building Standards Code, on or before January 1 of each year. The department shall notify every manufacturer of factory-built housing of these requirements on or before March 1 of each year. (c) Except as provided in Section 18930, the department shall adopt other rules and regulations as it deems necessary to carry out this part. In promulgating these other rules and regulations the department shall consider any amendments to the model codes referred to in this section. In the event of any conflict with respect to factory-built housing between Part 1.5 (commencing with Section 17910) and this part, the requirements of this part shall control.

Cal. Health and Safety Code - HSC § 19990.6. Section 19990.6.

The provisions of Section 17920.9, the building standards published in the State Building Standards Code relating to foam building systems, and the other rules and regulations adopted pursuant to Section 17920.9, shall be applicable to the sale, offering for sale, or use in the construction of any factory-built housing of any foam building system, and to any factory-built housing in which any such system is used as a component.

Cal. Health and Safety Code - HSC § 19991. Section 19991.

The department shall enforce every provision of this part, the building standards published in the State Building Standards Code relating to factory-built housing, and the other regulations adopted pursuant to this part, except as provided in Sections 19991.1, 19991.3, 19991.4, and 19992.

Cal. Health and Safety Code - HSC § 19991.1. Section 19991.1.

The governing body of any city, county, or city and county may by ordinance elect to have its building department assume responsibility, for in-plant inspections of all factory-built housing in all places of manufacture within the political limits of the jurisdiction of such city, county, or city and county. If certified by the department as qualified to perform such inspections, the building department shall be the local inspection agency within the city, county, or city and county. The governing body of any city, county, or city and county having a local inspection agency may, by ordinance, establish a reasonable inspection fee for in-plant inspections to defray the actual cost of inspections.

Cal. Health and Safety Code - HSC § 19991.2. Section 19991.2.

Where there is no certified local inspection agency, the department shall make in-plant inspection of all factory-built housing in all places of manufacture located within the political limits of the jurisdiction in which such manufacturing plants are located.

Cal. Health and Safety Code - HSC § 19991.3. Section 19991.3.

The department shall provide by regulation for qualification and disqualification of design approval agencies to perform approval of factory-built housing plans and specifications, and the approvals of those agencies shall be deemed the equivalent of department approval. The regulations for qualification of design approval agencies shall specifically provide for the absence of any conflict of interest between manufacturers and design approval agencies and for department oversight of design approval agency performance.

Cal. Health and Safety Code - HSC § 19991.4. Section 19991.4.

The department may provide by regulation for the qualification and disqualification of quality assurance agencies to perform inspections of factory-built housing manufacturers. Quality assurance agencies shall act on behalf and subject to the supervision of the department and shall exercise the powers of the department with respect to these inspections, as provided by regulations of the department. These regulations shall specifically provide for the absence of any conflict of interest between manufacturers and quality assurance agencies and for department oversight of the performance quality assurance agencies.

Cal. Health and Safety Code - HSC § 19992. Section 19992.

Local enforcement agencies shall enforce and inspect the installation of factory-built housing. The installation of factory-built housing shall be conducted in accordance with the requirements of the building standards published in the State Building Standards Code relating to factory-built housing and the other requirements of Part 1.5 (commencing with Section 17910), subject to the provisions of Section 19990. The local enforcement agency may, by ordinance, establish an inspection fee for the inspection of the installation of factory-built housing.

Cal. Health and Safety Code - HSC § 19993. Section 19993.

(a) Local use zone requirements, local snow load requirements, local wind pressure requirements, local fire zones, building setback, side and rear yard requirements, site development and property line requirements, as well as the review and regulation of architectural and aesthetic requirements are hereby specifically and entirely reserved to local jurisdictions notwithstanding any requirement of this part. (b) Local requirements imposed on factory-built housing pursuant to the authority granted by this section shall not vary substantially from the requirements imposed on other residential buildings of similar size.

Source: CA Legislative Counsel Bulk DataURL: https://downloads.leginfo.legislature.ca.gov/pubinfo_2025.zipFetched: 6/27/2026