Ask X3What does 49 CFR 177.810 (Vehicular tunnels) require?
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Short answer
49 CFR 177.810 requires that regulations established by State statute or municipal ordinance regarding the transportation of hazardous materials through urban vehicular tunnels used for mass transportation are not nullified or superseded by federal regulations, except for Class 7 (radioactive) materials.
The rule says
"Except as regards Class 7 (radioactive) materials, nothing contained in parts 170-189 of this subchapter shall be so construed as to nullify or supersede regulations established and published under authority of State statute or municipal ordinance regarding the kind, character, or quantity of any hazardous material permitted by such regulations to be transported through any urban vehicular tunnel used for mass transportation." (49 CFR 177.810)
In plain English
This means that when it comes to transporting hazardous materials through tunnels in urban areas, state and local regulations take precedence over federal regulations, as long as they don't involve radioactive materials. This allows states and cities to set their own rules for managing hazardous materials in tunnels, which can be important for public safety.
What to do
- Review state and local regulations for transporting hazardous materials through urban tunnels
- Ensure compliance with these regulations when transporting hazardous materials
- Note that federal regulations still apply to Class 7 (radioactive) materials, regardless of state or local rules