Federal Highway Administration. [http://ntl.bts.gov/lib/jpodocs/repts_te/13479.html "Ventura County Fare Integration: A Case Study; Promoting Seamless Regional Fare Coordination."] 2001.
: This report by the Federal Highway Administration is a case study of Ventura County, California's transition to using several
[Intelligent Transportation Systems ], including contactless fare cards, or smart cards. The report includes a description of the lessons learned from this multi-jurisdictional transition. Most importantly, the report outlines the institutional needs, the technical requirements, the methods for gaining customer acceptance, as well as the things the agencies involved could have done differently to make the program more successful.
American Public Transit Association. [http://aptastandards.com/Documents/PublishedStandards/Farecard/tabid/331/language/en-US/Default.aspx "Manual of Standards and Practices for Universal Transit Farecards."] 2006-2009.
: This link leads to five chapters of standards for use of contactless fare cards. The chapters were each written between 2006 and 2009 by the American Public Transit Association's Standards program. These standards include an overview of contactless cards in general, as well as more technical chapters on the security and maintenance of systems that use them.
Federal Transit Administration. [[media:ElectronicFareCollectionOptionsforCommuterRailroads.pdf|“Electronic Fare Collection Options for Commuter Railroads.”]] 2009.
: This 2009 study from the Federal Transit Administration describes the experiences of six commuter railroad systems that have begun using automated fare media, including 'contact' and 'contactless' fare cards. Case studies include San Diego's Coaster commuter rail line. Lessons learned are
especially tailored to commuter rail systems.