[Code of Federal Regulations] [Title 40, Volume 29] [Revised as of July 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR610.20] [Page 1001-1002] TITLE 40--PROTECTION OF ENVIRONMENT CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) PART 610_FUEL ECONOMY RETROFIT DEVICES--Table of Contents Subpart B_Evaluation Criteria for the Preliminary Analysis Sec. 610.20 General. The Administrator will employ the following criteria for evaluating the accuracy of fuel economy representations made with respect to retrofit devices: (a) Device functional category; (b) Device integrity; (c) Operator interaction effects; (d) Validity of test data; [[Page 1002]] (e) Evaluation of test data; as these concepts are explained in Sec. Sec. 610.21 through 610.25 respectively.