HMG-109 - The purpose of this guidance document is to remind tank car users of upcoming regulatory requirements for improved tank car safety features and to state FRA's enforcement policy on this topic.

HMG-108 - This guidance document is currently pending interagency concurrence.

HMG-107 - The purpose of this guidance document is to highlight key changes from the Research and Special Programs Administration's (RSPA) final rule "Hazardous Materials Regulations of the International Atomic Energy Agency;" HM-230.

HMG-106 - The purpose of this guidance document is to state and explain the FRA Office of Safety Assurance and Compliance policy on seal removal and replacement on rail equipment involved in hazardous materials transportation. This document revises the procedures outline in the FRA Hazardous Materials Compliance Manual.

HMG-105 - The purpose of this guidance document is to discuss the requirements for hazardous materials security plans, training, and background checks required by the Research and Special Programs Administration's final rule in docket HM-232. This Guidance also states the FRA's "phased-in" enforcement policy for the new regulations.

HMG-104 - The purpose of this Notice is to clariffy issues surrounding AAR (Association of American Railroads) Class 207 cars. NOTE: This notice annuls and replaces former HM-09 and HM-94-06.

HMG-103 - The purpose of this guidance document is to clarify the train placement rules in 49 CFR 174.85 that allow "specially equipped cars with tie-down devices for securing vehicles" to be entrained next to placarded rail cars transporting Division 1.1 and 1.2 materials and loaded, placarded tank cars.

HMG-102 - The purpose of this guidance document is to rescind Technical Bulletin HM-99-4, regarding the establishment of conditions under which tank cars with certain nonconforming conditions would move without the issuance of a movement approval.

HMG-101 - The purpose of this guidance document is to discuss and clarify the FRA's (Federal Railroad Administration's) implementation of 49 CFR 174.50 through the issuance of approvals that, with approval of the Associate Administrator for Safety, FRA, permit the continued movement of nonconforming bulk packages under certain specified conditions.