Current textIn force on Oct. 1, 2009Source: annual CFR editions 1996–2016

§ 397.1 Application of the rules in this part.

Current wording, first on file in the 1996 annual edition.

govinfo, 2009 edition ↗

Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 2009 edition's wording. An amendment that took effect between Oct. 1, 2009 and Oct. 1, 2009 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.

49 CFR § 397.1 — Application of the rules in this part.. Text in force on October 1, 2009. This wording effective October 1, 1996 to present. Source: govinfo, 2009 edition, https://www.govinfo.gov/app/details/CFR-2009-title49-vol5/CFR-2009-title49-vol5-sec397-1. Retrieved from FMCSR.com, https://fmcsr.com/reg/397.1?asof=2009-10-01, on October 26, 2026. Unofficial compilation; verify against the official source.

(a) The rules in this part apply to each motor carrier engaged in the transportation of hazardous materials by a motor vehicle which must be marked or placarded in accordance with § 177.823 of this title and to—

(1) Each officer or employee of the motor carrier who performs supervisory duties related to the transportation of hazardous materials; and

(2) Each person who operates or who is in charge of a motor vehicle containing hazardous materials.

(b) Each person designated in paragraph (a) of this section must know and obey the rules in this part.

[36 FR 4876, Mar. 13, 1971, as amended at 36 FR 16067, Aug. 19, 1971; 53 FR 18058, May 19, 1988; 60 FR 38749, July 28, 1995]

Amendment history

1 distinct wording on file since Oct. 1, 1996

Oct. 1, 1996 → presentannual editions 1996–2016viewing
[36 FR 4876, Mar. 13, 1971, as amended at 36 FR 16067, Aug. 19, 1971; 53 FR 18058, May 19, 1988; 60 FR 38749, July 28, 1995]

A new entry appears whenever the regulatory words change between government snapshots. Day-precise from the eCFR (2017 onward); before that, one snapshot per annual CFR edition (revised as of October 1). Bracketed citations are the Federal Register history printed with the section.