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Part 391 — Qualifications of Drivers and Longer Combination Vehicle (LCV) Driver Instructors
Between Oct. 1, 2003 and today (current through Oct. 22, 2026): 23 amended, 5 added, 0 removed, 3 unchanged.
Oct. 1, 2003 falls before day-level history begins (Jan. 1, 2017). It is read from the annual CFR edition in force that day (revised as of October 1), so an amendment that took effect earlier in that edition year is counted as already in place. Federal Register citations on each section give exact effective dates.
- Amended§ 391.1 Scope of the rules in this part; additional qualifications; duties of carrier-drivers.View diffChanged Oct. 1, 2015
- Amended§ 391.2 General exceptions.View diffChanged 8 times: Oct. 1, 2009; Oct. 1, 2010; Oct. 1, 2011; Oct. 1, 2012; Oct. 1, 2013; Oct. 1, 2014; Oct. 1, 2015; Oct. 1, 2016
- Amended§ 391.11 General qualifications of drivers.View diffChanged 2 times: March 9, 2022; May 9, 2022
- Amended§ 391.13 Responsibilities of drivers.View diffChanged 2 times: Oct. 1, 2011; Oct. 1, 2015
- Amended§ 391.15 Disqualification of drivers.View diffChanged 8 times: Oct. 1, 2010; Oct. 1, 2011; Oct. 1, 2012; Oct. 1, 2013; Oct. 1, 2014; Oct. 1, 2015; Oct. 1, 2016; Jan. 1, 2017
- Amended§ 391.21 Application for employment.View diffChanged 6 times: Oct. 1, 2004; Oct. 1, 2010; Oct. 1, 2011; Oct. 1, 2013; March 9, 2022; May 9, 2022
- Amended§ 391.23 Investigation and inquiries.View diffChanged 17 times: Oct. 1, 2004; Oct. 1, 2007; Oct. 1, 2009; Oct. 1, 2010; Oct. 1, 2012; Oct. 1, 2014; Oct. 1, 2015; Jan. 1, 2017; Jan. 17, 2017; June 21, 2018; Sept. 28, 2018; June 22, 2021; March 9, 2022; May 9, 2022; Sept. 29, 2022; Nov. 17, 2023; July 21, 2026
- Amended§ 391.25 Annual inquiry and review of driving record.View diffChanged 4 times: Oct. 1, 2009; March 9, 2022; May 9, 2022; Sept. 29, 2022
- Amended§ 391.27 [Reserved]View diffChanged 2 times: March 9, 2022; May 9, 2022
- Amended§ 391.31 Road test.View diffChanged 3 times: Jan. 1, 2017; Jan. 21, 2022; March 22, 2022
- Amended§ 391.41 Physical qualifications for drivers.View diffChanged 14 times: Oct. 1, 2009; Oct. 1, 2010; Oct. 1, 2012; Oct. 1, 2014; Oct. 1, 2015; June 21, 2018; Sept. 19, 2018; Nov. 19, 2018; Sept. 30, 2019; June 22, 2021; July 7, 2021; Jan. 21, 2022; March 22, 2022; July 21, 2026
- Amended§ 391.43 Medical examination; certificate of physical examination.View diffChanged 16 times: Oct. 1, 2009; Oct. 1, 2011; Oct. 1, 2012; Oct. 1, 2015; Jan. 1, 2017; June 11, 2018; June 21, 2018; Aug. 10, 2018; June 22, 2021; July 7, 2021; Sept. 7, 2021; Oct. 14, 2021; Jan. 21, 2022; March 22, 2022; Nov. 17, 2023; Jan. 16, 2024
- Added§ 391.44 Physical qualification standards for an individual who does not satisfy, with the worse eye, either the distant visual acuity standard with corrective lenses or the field of vision standard, or both.Read itChanged 2 times: Jan. 21, 2022; March 22, 2022
- Amended§ 391.45 Persons who must be medically examined and certified.View diffChanged 10 times: Oct. 1, 2015; June 21, 2018; Sept. 19, 2018; Nov. 19, 2018; June 22, 2021; Jan. 21, 2022; March 22, 2022; Nov. 17, 2023; Nov. 18, 2024; July 21, 2026
- Added§ 391.46 Physical qualification standards for an individual with diabetes mellitus treated with insulin for control.Read itChanged 4 times: Sept. 19, 2018; Sept. 28, 2018; Nov. 19, 2018; Sept. 30, 2019
- Amended§ 391.47 Resolution of conflicts of medical evaluation.View diffChanged 6 times: Oct. 1, 2005; Oct. 1, 2013; Oct. 1, 2015; Jan. 1, 2017; Oct. 14, 2021; Nov. 17, 2023
- Amended§ 391.49 Alternative physical qualification standards for the loss or impairment of limbs.View diffChanged 6 times: Oct. 1, 2004; Oct. 1, 2005; Oct. 1, 2009; Oct. 1, 2013; Oct. 14, 2021; Nov. 18, 2024
- Amended§ 391.51 General requirements for driver qualification files.View diffChanged 14 times: Oct. 1, 2004; Oct. 1, 2009; Oct. 1, 2010; Oct. 1, 2012; Oct. 1, 2014; Oct. 1, 2015; June 21, 2018; Sept. 30, 2019; June 22, 2021; Oct. 14, 2021; Jan. 21, 2022; March 9, 2022; March 22, 2022; May 9, 2022
- Added§ 391.53 Driver investigation history file.Read itChanged 2 times: Oct. 1, 2004; Sept. 30, 2019
- Added§ 391.55 LCV Driver-Instructor qualification files.Read itChanged 3 times: Oct. 1, 2004; April 16, 2018; June 15, 2018
- Amended§ 391.61 Drivers who were regularly employed before January 1, 1971.View diffChanged Oct. 14, 2021
- Amended§ 391.62 Limited exemptions for intracity zone drivers.View diffChanged Nov. 18, 2024
- Amended§ 391.63 Multiple-employer drivers.View diffChanged 3 times: Oct. 1, 2015; March 9, 2022; May 9, 2022
- Amended§ 391.64 [Reserved]View diffChanged 10 times: Oct. 1, 2013; Sept. 19, 2018; Nov. 19, 2018; Nov. 19, 2019; July 7, 2021; Jan. 21, 2022; Feb. 10, 2022; March 22, 2022; Feb. 19, 2026; March 23, 2026
- Amended§ 391.65 Drivers furnished by other motor carriers.View diffChanged 2 times: Oct. 1, 2013; Jan. 1, 2017
- Amended§ 391.67 Farm vehicle drivers of articulated commercial motor vehicles.View diffChanged 2 times: March 9, 2022; May 9, 2022
- Amended§ 391.68 Private motor carrier of passengers (nonbusiness).View diffChanged 2 times: March 9, 2022; May 9, 2022
- AddedAppendix A to Part 391 Appendix A to Part 391—Medical Advisory CriteriaRead itChanged 6 times: Oct. 1, 2015; Sept. 19, 2018; Nov. 19, 2018; Jan. 21, 2022; March 22, 2022; Jan. 19, 2024