[Code of Federal Regulations] [Title 40, Volume 27] [Revised as ofJuly 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 40CFR610.24] [Page 939] 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. 610.24 Validity of test data. The Administrator will make a determination as to the validity of manufacturer-furnished test data on the basis of: (a) The correlation between the test procedures used by the manufacturer or testing agent and the procedures prescribed in subpart D; (b) The choice of test vehicle(s) as representative of the manufacturer's claim for operation and/or principles of operation; (c) The degree of control exercised over ambient and operating conditions in the tests, including vehicle calibrations; (d) Accuracy and precision of the measurement techniques and instrumentation used in the tests; (e) Disclosure of all test data acquired on the device, whether representing positive, negative, or inconclusive results; (f) Qualifications and independence of the testing agent; and (g) The extent to which test data include evaluation of the durability of the device, or its effect on vehicle durability.