Commuter Connections is teaming up with the American Lung Association and the American Heart Association to encourage commuters across the D.C. region to take the pledge to go car free or car-lite on Saturday, September 21; Sunday, September 22; and/or Monday, September 23, 2019, to celebrate Car Free Days. Car Free Day, extended to three days this year, is an annual event that encourages more environmentally- and health-friendly ways of traveling to work, school, errands, etc.