[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: 40CFR610.40]

[Page 1005]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 610_FUEL ECONOMY RETROFIT DEVICES--Table of Contents
 
                Subpart D_General Vehicle Test Procedures
 
Sec. 610.40  General.


    Two chassis dynamometer test procedures, the Federal Test Procedure 
and the Highway Fuel Economy Test will generally be used to evaluate the 
effectiveness of the devices supplemented by steady state or engine 
dynamometer tests where warranted. Under unusual circumstances, other 
test procedures, durability test procedures or special test procedures 
such as track versions of the City and Highway fuel economy tests may be 
used. These procedures are described in subparts E and F.