Historical textIn force on Oct. 1, 1996Source: annual CFR edition 1996
§ 392.20 Unattended commercial motor vehicles; precautions.
Wording first on file in the 1996 annual edition, superseded by the 1998 annual edition. The section was then removed.
Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 1996 edition's wording. An amendment that took effect between Oct. 1, 1996 and Oct. 1, 1996 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
49 CFR § 392.20 — Unattended commercial motor vehicles; precautions.. Text in force on October 1, 1996. This wording effective October 1, 1996 to October 1, 1998. Source: govinfo, 1996 edition, https://www.govinfo.gov/app/details/CFR-1996-title49-vol4/CFR-1996-title49-vol4-sec392-20. Retrieved from FMCSR.com, https://fmcsr.com/reg/392.20?asof=1996-10-01, on October 26, 2026. Unofficial compilation; verify against the official source.
No commercial motor vehicle shall be left unattended until the parking brake has been securely set and all reasonable precautions have been taken to prevent the movement of such commercial motor vehicle.
[33 FR 19732, Dec. 25, 1968, as amended at 60 FR 38747, July 28, 1995]
Amendment history
1 distinct wording on file since Oct. 1, 1996- [33 FR 19732, Dec. 25, 1968, as amended at 60 FR 38747, 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.