§FMCSR.com
Historical textIn force on Sept. 30, 2003Source: annual CFR editions 1996–2002

§ 393.104 Blocking and bracing.

Wording first on file in the 1996 annual edition, superseded by the 2003 annual edition.

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 § 393.104 — Blocking and bracing.. Text in force on September 30, 2003. This wording effective October 1, 1996 to October 1, 2003. Source: govinfo, 2002 edition, https://www.govinfo.gov/app/details/CFR-2002-title49-vol4/CFR-2002-title49-vol4-sec393-104. Retrieved from FMCSR.com, https://fmcsr.com/reg/393.104?asof=2003-09-30, on October 26, 2026. Unofficial compilation; verify against the official source.

(a) Protection against longitudinal movement. When a motor vehicle carries cargo that is not firmly braced against a front-end structure that conforms to the requirements of § 393.106, the cargo must be secured so that, when the vehicle decelerates at a rate of 20 feet per second per second, the cargo will remain on the vehicle and will not penetrate the vehicle's front-end structure.

(b) Protection against lateral movement. When a vehicle carries cargo that may shift sideways in transit, the cargo must either be securely blocked or braced against the sides, sideboards, or stakes of the vehicle or be secured by devices that conform to the requirements of paragraph (b)(2), (b)(3), or (b)(4) of § 393.100.

(c) Effective date. This section is effective on October 1, 1973.

[38 FR 23522, Aug. 31, 1973, as amended at 38 FR 25183, Sept. 12, 1973]

Amendment history

5 distinct wordings on file since Oct. 1, 1996
  1. Nov. 18, 2024 → presenteCFR, day-precisediff vs. previous
    [67 FR 61225, Sept. 27, 2002, as amended at 71 FR 35833, June 22, 2006]
  2. Oct. 1, 2013 → Nov. 18, 2024annual editions 2013–2016diff vs. previous
    [67 FR 61225, Sept. 27, 2002, as amended at 71 FR 35833, June 22, 2006]
  3. Oct. 1, 2006 → Oct. 1, 2013annual editions 2006–2012diff vs. previous
    [67 FR 61225, Sept. 27, 2002, as amended at 71 FR 35833, June 22, 2006]
  4. Oct. 1, 2003 → Oct. 1, 2006annual editions 2003–2005diff vs. previous
  5. Oct. 1, 1996 → Oct. 1, 2003annual editions 1996–2002viewing
    [38 FR 23522, Aug. 31, 1973, as amended at 38 FR 25183, Sept. 12, 1973]

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.