DID YOU KNOW? The federal General Services Agency (GSA) just released new federal per diem lodging and meal rates for cities across the nation, effective October 1, 2011. We are happy to report the federal per diem rate for Arlington, Fort Worth, Grapevine and all of Tarrant County increased by $1 per night. In Tarrant County, the federal lodging per diem rate increased to $139 effective October 1, 2011 through September 30, 2012.