Section 19980 Of Chapter 3. Regulation From California Health And Safety Code >> Division 13. >> Part 6. >> Chapter 3.

. All factory-built housing manufactured after the effective date of the building standards published in the State Building Standards Code and the other regulations adopted pursuant to Chapter 4 (commencing with Section 19990) of this part, which is sold or offered for sale to first users within this state, shall bear insignia of approval issued by the department.