Current textIn force on Oct. 1, 2010Source: annual CFR editions 1999–2016
§ 381.600 Do waivers, exemptions, and pilot programs preempt State laws and regulations?
Current wording, first on file in the 1999 annual edition.
Before Jan. 1, 2017 the record is one snapshot per annual CFR edition, revised as of October 1. This is the 2010 edition's wording. An amendment that took effect between Oct. 1, 2010 and Oct. 1, 2010 would not appear until the next edition, so check the citations below and the Federal Register for exact effective dates.
49 CFR § 381.600 — Do waivers, exemptions, and pilot programs preempt State laws and regulations?. Text in force on October 1, 2010. This wording effective October 1, 1999 to present. Source: govinfo, 2010 edition, https://www.govinfo.gov/app/details/CFR-2010-title49-vol5/CFR-2010-title49-vol5-sec381-600. Retrieved from FMCSR.com, https://fmcsr.com/reg/381.600?asof=2010-10-01, on October 26, 2026. Unofficial compilation; verify against the official source.
Yes. During the time period that a waiver, exemption, or pilot program authorized by this part is in effect, no State shall enforce any law or regulation that conflicts with or is inconsistent with the waiver, exemption, or pilot program with respect to a person operating under the waiver or exemption or participating in the pilot program.
Amendment history
1 distinct wording on file since Oct. 1, 1999A 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.