Transportation Development Act (TDA) establishes two major funding sources for public transportation: Local Transportation Fund and State Transit Assistance Fund. A Local Transportation Fund (LTF) is created in each county for transportation purposes specified in the Act which are derived from 1/4th of a percent (.0025) of the 6 percent retail sales tax collected statewide. Allocations under Article 4 are available to operators throughout the State for the support of “public transportation systems.” Other transit services, including services provided exclusively for elderly and handicapped persons, may be funded under Article 4.5 (not subject to apportionment).