[Code of Federal Regulations] [Title 23, Volume 1] [Revised as of April 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 23CFR669.3] [Page 332] TITLE 23--HIGHWAYS CHAPTER I--FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 669--ENFORCEMENT OF HEAVY VEHICLE USE TAX--Table of Contents Sec. 669.3 Policy. It is the policy of the FHWA that each state require registrants of heavy trucks as described in 26 CFR part 41 to provide proof of payment of the vehicle use tax either before lawfully registering or within 4 months after lawfully registering such vehicles as provided for under a suspension registration system.