[Code of Federal Regulations] [Title 49, Volume 5] [Revised as of October 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR381.600] [Page 169] TITLE 49--TRANSPORTATION DEPARTMENT OF TRANSPORTATION PART 381_WAIVERS, EXEMPTIONS, AND PILOT PROGRAMS--Table of Contents Subpart F_Preemption of State Rules Sec. 381.600 Do waivers, exemptions, and pilot programs preempt State laws and regulations? 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.