The Metropolitan Transportation Authority (MTA) is a public benefit corporation responsible for public transportation in the U.S. state of New York. Chartered by the New York State Legislature in 1965 as the Metropolitan Commuter Transportation Authority (MCTA) it initially was responsible only for regulating and subsidizing commuter railroads, including the Long Island Rail Road and what is now the Metro-North Railroad.

The MCTA changed its name to the Metropolitan Transportation Authority (MTA) in 1968 when it took over operations of the New York City Transit Authority (NYCTA) and Triborough Bridge and Tunnel Authority (TBTA). The current CEO of the MTA is Elliot "Lee" Sander, appointed under the recommendation of Governor Eliot Spitzer.

The MTA has the responsibility for developing and implementing a unified mass transportation policy for The New York metropolitan area, including New York City and the suburban counties of Dutchess, Nassau, Orange, Putnam, Rockland, Suffolk, and Westchester, all of which together are the "Transportation District".

The MTA is the largest public transportation provider in the Western Hemisphere. Its agencies serve 14.6 million people spread over 5,000 square miles from New York City through southeastern New York State (including Long Island and the lower Hudson Valley), and Connecticut. MTA agencies now move nearly 2.4 billion rail and bus customers a year.

MTA Affiliate agencies
The affiliate agencies are still connectedwith the MTA, but the MTA have no oversight or control of their operations. These agencies include:

- Triborough Bridge and Tunnel Authority (TBTA), MTA Bridges and Tunnels
- New York City Transit Authority (NYCTA), and its subsidiary
- The Manhattan and Bronx Surface Transit Operating Authority (MaBSTOA), both assigned the popular name MTA New York City Transit.

For more information visit the MTA website at http://www.mta.info