Texas Transportation Code - TRANSP § 454.025. Encumbrance of Transportation System

(1) all or any part of the mass transportation system;

(2) the property of the system, including a bus or other vehicle, machinery, and equipment of any kind used in the operation of the system;

(3) the revenue of the system;

(4) the franchise of the system;  or

(5) any other thing relating to the system that is acquired or is to be acquired.

(1) encumber separately any property, including a bus or other vehicle, machinery, or equipment of any kind;  or

(2) acquire, hold, use, or contract for any property, including a bus or other vehicle, machinery, or equipment of any kind, under a lease arrangement, chattel mortgage, or conditional sale, including an equipment trust transaction.