Urbanized areas of over 200,000 people must have a TMA. The Mid-Hudson Valley TMA was formed following the 2000 Census. Certain considerations and requirements are made of a TMA, principally:
Transportation plans and programs within a TMA must be based on a continuing and comprehensive transportation planning process carried out by the MPO in cooperation with the State and transit operators.
The transportation planning process must include a Congestion Management System (CMS)
The FHWA and the FTA must certify the transportation planning process no less often than once every three years