§FMCSR.com
Current textIn force on June 1, 2015Source: annual CFR editions 2011–2016

§ 383.155 Tamperproofing requirements.

Current wording, in the annual edition revised as of Oct. 1, 2011.

govinfo, 2014 edition ↗
Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 2014 edition's wording. An amendment that took effect between Oct. 1, 2014 and June 1, 2015 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
What changedOct. 1, 1996 wording → Oct. 1, 2011 wording (current)+10 added−2 removedHide

States shallmust make the CLP and CDL tamperproof to the maximum extent practicable. At a minimum, a State shallmust use the same tamperproof method used for noncommercial drivers' licenses.
[76 FR 26893, May 9, 2011]

49 CFR § 383.155 — Tamperproofing requirements.. Text in force on June 1, 2015. This wording effective October 1, 2011 to present. Source: govinfo, 2014 edition, https://www.govinfo.gov/app/details/CFR-2014-title49-vol5/CFR-2014-title49-vol5-sec383-155. Retrieved from FMCSR.com, https://fmcsr.com/reg/383.155?asof=2015-06-01, on October 26, 2026. Unofficial compilation; verify against the official source.

States must make the CLP and CDL tamperproof to the maximum extent practicable. At a minimum, a State must use the same tamperproof method used for noncommercial drivers' licenses.

[76 FR 26893, May 9, 2011]

Amendment history

2 distinct wordings on file since Oct. 1, 1996
  1. Oct. 1, 2011 → presentannual editions 2011–2016diff vs. previousviewing
    [76 FR 26893, May 9, 2011]
  2. Oct. 1, 1996 → Oct. 1, 2011annual editions 1996–2010

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.