Compare a part between two dates
Pick a part and two dates. Every section whose wording changed in between is listed with a link to the exact diff. Built for the deposition question "has this rule changed since the crash?"
Part 397 — Transportation of Hazardous Materials; Driving and Parking Rules
Between Oct. 1, 2013 and today (current through Oct. 15, 2026): 11 amended, 0 added, 0 removed, 24 unchanged.
Oct. 1, 2013 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§ 397.65 Definitions.View diffChanged Jan. 10, 2025
- Amended§ 397.67 Motor carrier responsibility for routing.View diffChanged Oct. 1, 2014
- Amended§ 397.69 Highway routing designations; preemption.View diffChanged Oct. 1, 2015
- Amended§ 397.71 Federal standards.View diffChanged 2 times: Jan. 1, 2017; Sept. 29, 2022
- Amended§ 397.73 Public information and reporting requirements.View diffChanged 7 times: Oct. 1, 2014; Oct. 1, 2015; Jan. 1, 2017; May 17, 2018; June 18, 2018; Sept. 28, 2018; Sept. 29, 2022
- Amended§ 397.75 Dispute resolution.View diffChanged Jan. 1, 2017
- Amended§ 397.101 Requirements for motor carriers and drivers.View diffChanged Jan. 1, 2017
- Amended§ 397.103 Requirements for State routing designations.View diffChanged 6 times: Oct. 1, 2015; Jan. 1, 2017; May 17, 2018; June 18, 2018; Sept. 28, 2018; Sept. 29, 2022
- Amended§ 397.205 Preemption application.View diffChanged Jan. 1, 2017
- Amended§ 397.213 Waiver of preemption application.View diffChanged Jan. 1, 2017
- Amended§ 397.215 Waiver notice.View diffChanged Oct. 1, 2015
Unchanged (24)
- § 397.1 Application of the rules in this part.
- § 397.2 Compliance with Federal motor carrier safety regulations.
- § 397.3 State and local laws, ordinances, and regulations.
- § 397.5 Attendance and surveillance of motor vehicles.
- § 397.7 Parking.
- § 397.9 [Reserved]
- § 397.11 Fires.
- § 397.13 Smoking.
- § 397.15 Fueling.
- § 397.17 Tires.
- § 397.19 Instructions and documents.
- § 397.61 Purpose and scope.
- § 397.63 Applicability.
- § 397.77 Judicial review of dispute decision.
- § 397.201 Purpose and scope of the procedures.
- § 397.203 Standards for determining preemption.
- § 397.207 Preemption notice.
- § 397.209 Preemption processing.
- § 397.211 Preemption determination.
- § 397.217 Waiver processing.
- § 397.219 Waiver determination and order.
- § 397.221 Timeliness.
- § 397.223 Petition for reconsideration.
- § 397.225 Judicial review.