The General Services Administration (GSA) Property Management is a service agency to the federal government. The travel trailers mobile homes that are owned by FEMA and reported to GSA for sale are offered and sold by Gsaauctions.gov either online or offline. Gsaauctions.gov does not charge the general public to browse or to register at GSA Auctions. It is a U.S. Government website and is free to use. Gsaauctions.gov utilizes Pay.Gov, an electronic payment service, to facilitate user registration and process payments. Users are required to confirm their identities during registration by providing a valid credit card.