The document summarizes a regional transportation demand management (TDM) program in the San Francisco Bay Area. It describes the region's growth in population and vehicle miles traveled since the 1950s. It also outlines the Bay Area Air Quality Management District's responsibilities and the program's goals of improving air quality and reducing greenhouse gas emissions from transportation. The program requires large employers to offer commuter benefits like pre-tax transit passes or vanpool subsidies. It provides options and guidelines for employers to comply in order to shift commuters from single-occupancy driving to other modes of transportation.