Current textIn force on Oct. 1, 2012Source: annual CFR editions 1996–2016
§ 397.3 State and local laws, ordinances, and regulations.
Current wording, first on file in the 1996 annual edition.
Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 2012 edition's wording. An amendment that took effect between Oct. 1, 2012 and Oct. 1, 2012 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
49 CFR § 397.3 — State and local laws, ordinances, and regulations.. Text in force on October 1, 2012. This wording effective October 1, 1996 to present. Source: govinfo, 2012 edition, https://www.govinfo.gov/app/details/CFR-2012-title49-vol5/CFR-2012-title49-vol5-sec397-3. Retrieved from FMCSR.com, https://fmcsr.com/reg/397.3?asof=2012-10-01, on October 26, 2026. Unofficial compilation; verify against the official source.
Every motor vehicle containing hazardous materials must be driven and parked in compliance with the laws, ordinances, and regulations of the jurisdiction in which it is being operated, unless they are at variance with specific regulations of the Department of Transportation which are applicable to the operation of that vehicle and which impose a more stringent obligation or restraint.
Amendment history
1 distinct wording on file since Oct. 1, 1996A 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.