DOT Hazmat – Highway Carrier Segregation Requirements

Certain hazardous materials must be separated from each other during transportation in a manner that prevents commingling if a package failure or leakage were to occur. The segregation requirements for highway hazmat shipments are contained in Section 177.848 of the HMR. These requirements apply only to the Hazard Classes and Divisions listed in the HMR’s Segregation Table and only if the materials are in packages that require labeling or placarding, a compartment within a cargo tank, or a portable tank loaded in a container or vehicle.

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Course Details

Learning Objectives


• Use the Segregation Table in Section 177.848 of the Hazardous Materials Regulations (HMR) to determine segregation requirements for commercial highway hazardous materials shipments
• Use the Compatibility Table to determine the segregation requirements for commercial highway shipments of Class 1 Explosives
• Determine when a transportation incident involving a hazardous material must be reported to the National Response Center (NRC)

Specs

Course Level Intermediate
Languages English
Compatibility Audio, Video
Based on: 49 CFR, Subpart D, Part 177

Vector Solutions

Author

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Key Questions

Where can I find the U.S. DOT’s segregation requirements for hazardous materials?
The segregation requirements for highway shipments of hazardous materials are contained in Section 177.848 of the HMR.

What if I am transporting a hazardous material that is not listed in the HMR Segregation Table?
A Hazard Class or Division that is not included in the Segregation Table is not restricted.

What if a space in the Segregation Table is blank?
Blank spaces in the table indicate when no restrictions apply.

Are segregation requirements for Explosives different?
Explosive segregation requirements are based on the Compatibility Group letters A through S that are assigned by the Associate Administrator for Hazardous Materials Safety at PHMSA.

Who is responsible for reporting when a hazardous material is involved in a transportation incident?
Each person in physical possession of hazardous materials during transportation (including loading, unloading, and related temporary storage) is responsible.

Sample Video Transcript

A separate training module details the loading and unloading requirements for commercial highway shipments of hazardous materials. This module covers segregation requirements for hazardous materials during transportation (including loading, unloading, and related temporary storage). Certain hazardous materials must be separated from each other during transportation in a manner that prevents commingling if a package failure or leakage were to occur. The segregation requirements for highway shipments of hazardous materials are contained in Section 177.848 of the HMR.

Course Applies To

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