---
kind: "section"
citation: "49 C.F.R. § 397.61"
title: "49"
number: "397.61"
heading: "Purpose and scope."
url: "https://uscodex.org/cfr/49/397.61"
---

# §397.61. Purpose and scope.


This subpart contains routing requirements and procedures that States and Indian tribes are required to follow if they establish, maintain, or enforce routing designations over which a non-radioactive hazardous material (NRHM) in a quantity which requires placarding may or may not be transported by a motor vehicle. It also provides regulations for motor carriers transporting placarded or marked NRHM and procedures for dispute resolutions regarding NRHM routing designations.


## Notes

### Source

Source: 59 FR 51830, Oct. 12, 1994, unless otherwise noted.

### Authority

Authority: 49 U.S.C. 322; 49 CFR 1.87. Subpart A also issued under 49 U.S.C. 5103, 31136, 31502, and 49 CFR 1.97. Subparts C, D, and E also issued under 49 U.S.C. 5112, 5125.

### Source

Source: 36 FR 4876, Mar. 13, 1971, unless otherwise noted.