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Hazardous Materials

Q-1. What do the 4-digit hazmat codes on the side of railroad cars mean?

A. The 4-digit codes are a numeric representation of the chemical materials contained within the car. For other hazmat-related issues, see the DOT’s hazmat website at http://hazmat.dot.gov/index.cfm

Safety / Q&A's

Last Updated: Oct. 29, 2008
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