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Reading the regulations as they stood on September 30, 2003. Current text may differ.Switch to current
Historical textIn force on Sept. 30, 2003Source: annual CFR editions 1996–2004

§ 393.32 Detachable electrical connections.

Wording first on file in the 1996 annual edition, superseded by the 2005 annual edition. The section was then removed.

govinfo, 2002 edition ↗
Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 2002 edition's wording. An amendment that took effect between Oct. 1, 2002 and Sept. 30, 2003 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
49 CFR § 393.32 — Detachable electrical connections.. Text in force on September 30, 2003. This wording effective October 1, 1996 to October 1, 2005. Source: govinfo, 2002 edition, https://www.govinfo.gov/app/details/CFR-2002-title49-vol4/CFR-2002-title49-vol4-sec393-32. Retrieved from FMCSR.com, https://fmcsr.com/reg/393.32?asof=2003-09-30, on October 26, 2026. Unofficial compilation; verify against the official source.

Electrical wiring between towing and towed vehicles shall be contained in a cable or cables or entirely within another substantially constructed protective device. All such electrical wiring shall be mechanically and electrically adequate and free of short or open circuits. Suitable provision shall be made in every such detachable connection to afford reasonable assurance against connection in an incorrect manner or accidental disconnection. Detachable connections made by twisting together wires from the towed and towing units are prohibited. Precaution shall be taken to provide sufficient slack in the connecting wire or cable to accommodate without damage all normal motions of the parts to which they are attached.

Amendment history

1 distinct wording on file since Oct. 1, 1996
  1. Oct. 1, 1996 → Oct. 1, 2005annual editions 1996–2004viewing

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.