The Greater Washington Region Clean Cities Coalition’s Annual Conference, Expo, and Awards Luncheon is a regional clean energy and transportation industry gathering held at Martin’s Crosswinds in Greenbelt, Maryland. The event brings together government, industry, and nonprofit stakeholders for panels and workshops, an exhibitor expo, networking receptions, and an awards luncheon recognizing achievements in alternative fuels, fleet electrification, and related clean-transportation initiatives. It also typically features an alternative-vehicle showcase / ride-and-drive and opportunities for sponsors and exhibitors to demonstrate new technologies.