Health and Safety Code Section 44014.7 Program Requirements
44014.7. (a) The department shall require 2 percent of the vehicles required to obtain a certificate of compliance each year in enhanced program areas to receive their certificate from a test-only facility.
(b) The department may require a number not to exceed 2 percent of the vehicles required to obtain a certificate of compliance each year in basic program areas to receive their certificate from a test-only facility.
(c) The vehicles specified in subdivisions (a) and (b) shall be selected at random. The vehicles may be included among the vehicles subject to subdivision (d) of Section 44010.5, to the extent that the vehicles are registered in enhanced program areas. The review committee may review the selection process to ensure that it is a statistically significant representation of the vehicles subject to the basic and enhanced programs. The department shall select the vehicles and the Department of Motor Vehicles shall notify the owners of their obligation under this section pursuant to Section 4000.3 of the Vehicle Code. Selection shall be made from vehicles in an area where a test-only facility is located.