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Investigation of Anomalous Rail-Highway Crossings

This paper was prepared for presentation at the 60th Annual Meeting of the Transportation Research Board and is not authorized for general circulation. This paper presents the results of a study undertaken to improve the prediction capability of the Department of Transportation's Accident...

Hazardous Materials Enforcement

Several field personnel have inquired about the calculations used to determine if a material meets the poison-by-inhalation requirements of 49 CFR Section 173.3a. As an illustration of these calculations, two material safety data sheets (MSDS) are analyzed.

Hazardous Materials Enforcement

Please find attached an interpretation of the legal enforceability of 49 CFR Appendix B to Subpart B of Part 107 prepared by the Senior Attorney, Research and Special Programs Administration.