Hazardous Materials Rail Safety Act

[AI summary unavailable — showing source text] Hazardous Materials Rail Safety Act - Amends the Hazardous Materials Transportation Act to direct the Secretary of Transportation to issue regulations regarding emergency response procedures for rail carriers in accident or emergency situations involving the transportation and storage of hazardous materials. Prohibits railroad tank cars from being used in commercial hazardous materials transportation unless they comply with standards for attachments imposed by the Secretary. Directs the Secretary to enter into a contract with the National Academy of Sciences for a study of railroad tank car design and to report the results of such study to the Congress. Authorizes appropriations.…