CA Gov't Code Section 13995.65.5

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.