Texas Government Code - GOV'T § 2171.1045. Restrictions on Assignment of Vehicles

(1) each agency vehicle, with the exception of a vehicle assigned to a field employee, be assigned to the agency motor pool and be available for checkout;  and

(2) an agency may assign a vehicle to an individual administrative or executive employee on a regular or everyday basis only if the agency makes a written documented finding that the assignment is critical to the needs and mission of the agency.