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The Federal Railroad Administration of the U.S. Department of Transportation is the primary federal agency that promotes and regulates railroad safety. To implement its safety responsibilities, the Federal Railroad Administration uses numerous strategies including the Safety Assurance and Compliance Program, field inspections; and to help improve its regulations, the administration uses the Railroad Safety Advisory Committee. This report contains information on the Federal Railroad Administration's Safety Program, railroad safety statistics, key reauthorization issues, and related information.

This issue brief discusses the Airport Improvement Program and its complement, the Passenger Facility Charge (PFC). After a brief history of federal support for airport construction and improvement, the report describes AIP funding, its source of revenues, funding distribution, the types of projects the program funds,AIP and PFC policy issues, and the allowable use of AIP funds for airport security purposes.