Routing

Scope

A motor carrier transporting non-radioactive hazardous materials that require placarding shall comply with the routing designations of a State or Indian tribe.

Regulatory citations

• 49 CFR 397.67 — Motor carrier responsibility for routing

Key definitions

• None

Summary of requirements

If a motor carrier transporting hazardous materials required to be marked or placarded is not subject to State or Indian tribe routing requirements, the carrier shall operate the vehicle over routes which do not go through or near heavily populated areas, places where crowds are assembled, tunnels, narrow streets, or alleys, except when:

• There is no practicable alternative;
• It is necessary to reach a terminal, points of loading or unloading, facilities for food, fuel, rest, repairs, or a safe haven; or
• A deviation is required by emergency conditions;
• Operating convenience is not a basis for determining if a route can be used.

There are specialized routing requirements for motor carriers transporting radioactive materials. These requirements can be found in 397.101.