California Code, Government Code - GOV § 13995.65.5

(a) Notwithstanding Section 13995.65 or any other provision of this chapter, for purposes of calculating the assessment for a business within the passenger car rental category, the assessment shall be collected only on each rental transaction that commences at either an airport or at a hotel or other overnight lodging with respect to which a city, city and county, or county is authorized to levy a tax as described in Section 7280 of the Revenue and Taxation Code.  A transaction commencing at an airport or hotel or other overnight lodging subject to a transient occupancy tax as described in Section 7280 of the Revenue and Taxation Code, including those that commence at a location that might otherwise by regulation be exempt from assessment, shall be subject to the assessment.  The assessment shall always be expressed as a fixed percentage of the amount of the rental transaction.

(b) This section shall apply to any person or entity described in subdivision (m) of Section 1939.01 of the Civil Code in the same manner as a business in the passenger car rental category for each sharing or rental transaction that begins at an airport.