Texas Transportation Code - TRANSP § 454.027. Operating Expenses as Lien on Revenue

If the revenue of a mass transportation system is encumbered under this chapter, the expenses of operation and maintenance, including all salaries, labor, materials, interest, repairs, and extensions necessary to render efficient service and each proper item of expense, are a first lien against the revenues.  The expense of an extension may be a lien prior to an existing lien only if: