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 399 — Employee Safety and Health Standards
Between Sept. 30, 2004 and today (current through Oct. 22, 2026): 1 amended, 0 added, 0 removed, 5 unchanged.
Sept. 30, 2004 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§ 399.205 Definitions.View diffChanged 2 times: Oct. 1, 2004; July 21, 2026