[Code of Federal Regulations] [Title 49, Volume 6] [Revised as of October 1, 2006] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR538.1] [Page 111] TITLE 49--TRANSPORTATION CHAPTER V--NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 538_MANUFACTURING INCENTIVES FOR ALTERNATIVE FUEL VEHICLES--Table of Contents Sec. 538.1 Scope. This part establishes minimum driving range criteria to aid in identifying passenger automobiles that are dual-fueled automobiles. It also establishes gallon equivalent measurements for gaseous fuels other than natural gas. This part also extends the dual-fuel incentive program. [69 FR 7703, Feb. 19, 2004]