Federal per diem rates are established each year by the General Services Administration (GSA) based on actual market data compiled and provided by Smith Travel Research (STR). AHLA continues to work with the GSA to underscore the importance of maintaining per diems at sustainable rates. Additionally, AHLA is engaged with Congress on legislation and policies that impact per diems. In particular, in late 2014, the Department of Defense (DoD) instituted a new policy which cuts the per diem rates for personnel on long-term travel assignments by 25 percent for stays of over 30 days and by 45 percent for stays of over 180 days. This change threatens to hurt all hotels, but particularly those hotels near military installations.