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Reading the regulations as they stood on September 30, 2011. Current text may differ.Switch to current
Current textIn force on Sept. 30, 2011Source: annual CFR editions 2005–2016

§ 393.87 Warning flags on projecting loads.

Current wording, in the annual edition revised as of Oct. 1, 2005.

govinfo, 2010 edition ↗
Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 2010 edition's wording. An amendment that took effect between Oct. 1, 2010 and Sept. 30, 2011 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
49 CFR § 393.87 — Warning flags on projecting loads.. Text in force on September 30, 2011. This wording effective October 1, 2005 to present. Source: govinfo, 2010 edition, https://www.govinfo.gov/app/details/CFR-2010-title49-vol5/CFR-2010-title49-vol5-sec393-87. Retrieved from FMCSR.com, https://fmcsr.com/reg/393.87?asof=2011-09-30, on October 26, 2026. Unofficial compilation; verify against the official source.

(a) Any commercial motor vehicle transporting a load which extends beyond the sides by more than 102 mm (4 inches) or more than 1,219 mm (4 feet) beyond the rear must have the extremities of the load marked with red or orange fluorescent warning flags. Each warning flag must be at least 457 mm (18 inches) square.

(b) Position of flags. There must be a single flag at the extreme rear if the projecting load is two feet wide or less. Two warning flags are required if the projecting load is wider than two feet. Flags must be located to indicate maximum width of loads which extend beyond the sides and/or rear of the vehicle.

[70 FR 48054, Aug. 15, 2005]

Amendment history

2 distinct wordings on file since Oct. 1, 1996
  1. Oct. 1, 2005 → presentannual editions 2005–2016diff vs. previousviewing
    [70 FR 48054, Aug. 15, 2005]
  2. Oct. 1, 1996 → Oct. 1, 2005annual editions 1996–2004
    [53 FR 49401, Dec. 7, 1988]

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.