[Code of Federal Regulations]
[Title 40, Volume 17]
[Revised as of July 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR86.229-94]

[Page 582-583]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 86_CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND 
ENGINES--Table of Contents
 
 Subpart C_Emission Regulations for 1994 and Later Model Year Gasoline-
 
Sec. 86.229-94  Road load force, test weight, and inertia weight class 
determination.

    (a) Flywheels, electrical forces, or other means of simulating test 
weight as shown in the table in this paragraph shall be used. If the 
equivalent test weight specified is not available on the dynamometer 
being used, the next higher equivalent test weight (not to exceed 250 
pounds) available shall be used. Light-duty vehicles over 5750 lbs. 
loaded vehicle weight shall be tested at a 5,500 lb. equivalent test 
weight.

------------------------------------------------------------------------
                                                  Equivalent    Inertia
                                                     test       weight
         Loaded vehicle weight (pounds)             weight       class
                                                   (pounds)    (pounds)
------------------------------------------------------------------------
Up-1,062........................................       1,000       1,000
1,063-1,187.....................................       1,125       1,000
1,188-1,312.....................................       1,250       1,250
1,313-1,437.....................................       1,375       1,250
1,438-1,562.....................................       1,500       1,500
1,563-1,687.....................................       1,625       1,500
1,688-1,812.....................................       1,750       1,750
1,813-1,937.....................................       1,875       1,750
1,938-2,062.....................................       2,000       2,000
2,063-2,187.....................................       2,125       2,000
2,188-2,312.....................................       2,250       2,250
2,313-2,437.....................................       2,375       2,250
2,438-2,562.....................................       2,500       2,500
2,563-2,687.....................................       2,625       2,500
2,688-2,812.....................................       2,750       2,750
2,813-2,937.....................................       2,875       2,750
2,938-3,062.....................................       3,000       3,000
3,063-3,187.....................................       3,125       3,000
3,188-3,312.....................................       3,250       3,000
3,313-3,437.....................................       3,375       3,500
3,438-3,562.....................................       3,500       3,500
3,563-3,687.....................................       3,625       3,500
3,688-3,812.....................................       3,750       3,500
3,813-3,937.....................................       3,875       4,000
3,938-4,125.....................................       4,000       4,000
4,126-4,375.....................................       4,250       4,000
4,376-4,625.....................................       4,500       4,500
4,626-4,875.....................................       4,750       4,500
4,876-5,125.....................................       5,000       5,000
5,126-5,375.....................................       5,250       5,000
5,376-5,750.....................................       5,500       5,500
5,751-6,250.....................................       6,000       6,000
6,251-6,750.....................................       6,500       6,500
6,751-7,250.....................................       7,000       7,000
7,251-7,750.....................................       7,500       7,500
7,751-8,250.....................................       8,000       8,000
8,251-8,750.....................................       8,500       8,500
8,751-9,250.....................................       9,000       9,000
9,251-9,750.....................................       9,500       9,500
9,751-10,000....................................      10,000      10,000
------------------------------------------------------------------------

    (b) A dynamometer which meets the specifications of Sec. 86.208-
94(a) shall be adjusted to simulate the operation of a vehicle on the 
road at 20 [deg]F (-7 [deg]C).

[[Page 583]]

Such adjustment may be based on a determination of the road load force 
profile at 20 [deg]F (-7 [deg]C). Alternatively, the adjustment may be 
based on a 10 percent decrease in the target coastdown time that is used 
for FTP testing.