California Code, Public Utilities Code - PUC § 102001

(a) It is necessary that a transit district be established to operate a single unified public transportation system in the Sacramento region in order to meet the present and future public transportation, and mass and rapid transit, needs of that region.  The existing Sacramento Transit Authority, because of its limited legal and financial base, is unable to solve the transit problems of the Sacramento region and provide the needed comprehensive public transportation system.

(b) It is, therefore, necessary to provide a successor corporation to the authority, to wit:  a transit district, and to provide for the formation of such transit district appointed by and responsive to the cities and counties in the Sacramento region served by the district so that there will be sufficient governmental authority to solve the existing and future transportation problems of the Sacramento region and provide the needed comprehensive public transportation system.

(c) Because there is no general law under which such a district could be formed, the adoption of a special act enabling the creation of a special district is required.