The Transportation Management Association of Chester County (TMACC) is a non-profit organization that advocates for transportation issues and promotes sustainability through education and programs. For over 20 years, TMACC has focused on improving highways, public transportation, and funding while encouraging smart growth. Key activities include providing transportation information, advocating for projects, and hosting educational programs. TMACC also promotes alternative commuting such as public transit, ridesharing, bicycling and walking to reduce traffic and benefit the environment.