The American Public Transportation Association (APTA) is a nonprofit organization that advocates for public transportation in the United States. Founded in 1882, APTA represents various public transit agencies, businesses, and individuals involved in the transportation sector. Its mission is to promote and improve public transit systems, ensuring they are efficient, accessible, and sustainable. APTA provides resources, research, and training to its members, helping them enhance their services and operations. The organization also engages in policy advocacy at the federal, state, and local levels to secure funding and support for public transportation initiatives, contributing to the overall improvement of urban mobility.