[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR600.003-77] [Page 861] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 600--FUEL ECONOMY OF MOTOR VEHICLES--Table of Contents Subpart A--Fuel Economy Regulations for 1977 and Later Model Year Automobiles--General Provisions Sec. 600.003-77 Abbreviations. (a) The abbreviations used in this subpart have the same meaning as those in 40 CFR part 86, with the addition of the following: ``MPG'' means miles per gallon. GVWR--Gross Vehicle Weight Rating. [41 FR 38685, Sept. 10, 1976, as amended at 41 FR 49759, Nov. 10, 1976]