[Code of Federal Regulations] [Title 49, Volume 5] [Revised as of October 1, 2002] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR538.8] [Page 108-109] TITLE 49--TRANSPORTATION OF TRANSPORTATION PART 538--MANUFACTURING INCENTIVES FOR ALTERNATIVE FUEL VEHICLES--Table of Contents Sec. 538.8 Gallon Equivalents for Gaseous Fuels. The gallon equivalent of gaseous fuels, for purposes of calculations made under 49 U.S.C. 32905, are listed in Table I: Table I--Gallon Equivalent Measurements for Gaseous Fuels per 100 Standard Cubic Feet ------------------------------------------------------------------------ Gallon Fuel equivalent measurement ------------------------------------------------------------------------ Compressed Natural Gas................................ 0.823 Liquefied Natural Gas................................. 0.823 Liquefied Petroleum Gas (Grade HD-5)*................. 0.726 Hydrogen.............................................. 0.259 [[Page 109]] Hythane (Hy5)......................................... 0.741 ------------------------------------------------------------------------ * Per gallon unit of measure.