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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 March 25, 2020 and today (current through Oct. 22, 2026): 4 amended, 0 added, 0 removed, 31 unchanged.

Unchanged (31)