" Some transit agencies have found that they can save money by contracting out some or all of their services with private providers, while others have found it more beneficial to use their own staff to provide services. The Moving Ahead for Progress in the 21st Century Act mandated that GAO review issues related to transit contracting. In this report, GAO identified: (1) the extent that public transit agencies contract operations and reasons why agencies decide to do so, (2) methods used to select and oversee contracted services, and (3) potential benefits, challenges, and disadvantages of contracting out public transit operations and other services. GAO conducted a web-based survey of 637 transit agencies that submit reports to the Department of Transportation (DOT) and obtained 463 responses for a 73 percent response rate. The survey and results can be found at GAO-13-824SP. In addition, GAO interviewed federal officials, representatives from industry organizations, and national union officials. GAO also interviewed officials from 10 transit agencies, chosen based on a variety of characteristics, including geographic diversity, population served, use of contracting, and modes operated. At each transit location, GAO interviewed private transit providers, citizens' advisory groups, and local unions. The results of the survey and interviews are not generalizeable to all transit agencies. GAO also reviewed relevant studies and literature on transit contracting"