Cal. Health & Saf. Code § 18115
Commencing July 1, 1981, the vehicle license fee levied pursuant to Section 10751 of the Revenue and Taxation Code on manufactured homes and mobilehomes not subject to local property taxation pursuant to Part 13 (commencing with Section 5800) of Division 1 of the Revenue and Taxation Code, or commercial coaches, shall be paid to the department. The annual amount of the fee shall be a sum equal to 2 percent, and on and after January 1, 2005, 0.65 percent, of the market value of the manufactured home, mobilehome, or commercial coach. The market value shall be determined by the department upon the basis of the original sales price of the manufactured home, mobilehome, or commercial coach when first sold to a consumer as a new manufactured home, mobilehome, or commercial coach. The annual amount of the fee charged to the owner of a manufactured home or mobilehome subject to a license fee which replaces a manufactured home or mobilehome destroyed, on or after January 1, 1982, as the result of a disaster declared by the Governor, and which meets the requirements of Chapter 2.6 (commencing with Section 172) of Part 1 of Division 1 of the Revenue and Taxation Code, shall be determined in accordance with Section 172.1 of the Revenue and Taxation Code. In the event any manufactured home, mobilehome, or commercial coach subject to this article is modified or added to at a cost of two hundred dollars ($200), or more, a copy of the building permit required for these modifications shall be entered in the permanent record of the manufactured home, mobilehome, or commercial coach and the department shall classify or reclassify the manufactured home, mobilehome, or commercial coach in its proper class as provided in Section 18115.5. These provisions shall not apply in the event that the modifications are necessary to enable a handicapped person to enter and use the manufactured home, mobilehome, or commercial coach.
Ca. Health and Saf. Code § 18115