Current textIn force on Oct. 1, 2006Source: annual CFR editions 2005–2016
§ 393.63 [Reserved]
Current wording, in the annual edition revised as of Oct. 1, 2005.
Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 2006 edition's wording. An amendment that took effect between Oct. 1, 2006 and Oct. 1, 2006 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
49 CFR § 393.63 — [Reserved]. Text in force on October 1, 2006. This wording effective October 1, 2005 to present. Source: govinfo, 2006 edition, https://www.govinfo.gov/app/details/CFR-2006-title49-vol5/CFR-2006-title49-vol5-sec393-63. Retrieved from FMCSR.com, https://fmcsr.com/reg/393.63?asof=2006-10-01, on October 26, 2026. Unofficial compilation; verify against the official source.
[Reserved]
Amendment history
2 distinct wordings on file since Oct. 1, 1996- Oct. 1, 1996 → Oct. 1, 2005annual editions 1996–2004[37 FR 11678, June 10, 1972]
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.