[Code of Federal Regulations]
[Title 40, Volume 16]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR80.60]
[Page 665-666]
TITLE 40--PROTECTION OF ENVIRONMENT
CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
PART 80_REGULATION OF FUELS AND FUEL ADDITIVES--Table of Contents
Subpart D_Reformulated Gasoline
Sec. 80.60 Test fleet requirements for exhaust emission testing.
(a) Candidate vehicles which conform to the emission performance
requirements defined in paragraphs (b) through (d) of this section shall
be obtained directly from the in-use fleet and tested in their as-
received condition.
(b) Candidate vehicles for the test fleet must be screened for their
exhaust VOC emissions in accordance with the provisions in Sec. 80.62.
(c) On the basis of pretesting pursuant to paragraph (b) of this
section, the test fleet shall be subdivided into two emitter group sub-
fleets: the normal emitter group and the higher emitter group.
(1) Each vehicle with an exhaust total hydrocarbon (THC) emissions
rate which is less than or equal to twice the applicable emissions
standard shall be placed in the normal emitter group.
(2) Each vehicle with an exhaust THC emissions rate which is greater
than two times the applicable emissions standard shall be placed in the
higher emitter group.
(d) The test vehicles in each emitter group must conform to the
requirements of paragraphs (d)(1) through (4) of this section.
(1) Test vehicles for the normal emitter sub-fleet must be selected
from the list shown in this paragraph (d)(1). This list is arranged in
order of descending vehicle priority, such that the order in which
vehicles are added to the normal emitter sub-fleet must conform to the
order shown (e.g., a ten-vehicle normal emitter group sub-fleet must
consist of the first ten vehicles listed in this paragraph (d)(1)). If
more vehicles are tested than the minimum number of vehicles required
for the normal emitter sub-fleet, additional vehicles are to be added to
the fleet in the order specified in this paragraph (d)(1), beginning
with the next vehicle not already included in the group. The vehicles in
the normal emitter sub-fleet must possess the characteristics indicated
in the list. If the end of the list is reached in adding vehicles to the
normal emitter sub-fleet and additional vehicles are desired then they
shall be added beginning with vehicle number one, and must be added to
the normal emitter sub-fleet in accordance with the order in table A:
Table A--Test Fleet Definitions
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Tech.
Veh. No. Fuel system Catalyst Air injection EGR group Manufacturer
--------------------------------------------------------------------------------------------------------------------------------------------------------
1................................ Multi............... 3W.................. No Air.............. EGR................ 1 GM.
2................................ Multi............... 3W.................. No Air.............. No EGR............. 2 Ford.
3................................ TBI................. 3W.................. No Air.............. EGR................ 3 GM.
4................................ Multi............... 3W+OX............... Air................. EGR................ 4 Ford.
5................................ Multi............... 3W.................. No Air.............. EGR................ 1 Honda.
6................................ Multi............... 3W.................. No Air.............. No EGR............. 2 GM.
7................................ TBI................. 3W.................. No Air.............. EGR................ 3 Chrysler.
8................................ Multi............... 3W+OX............... Air................. EGR................ 4 GM.
9................................ TBI................. 3W+OX............... Air................. EGR................ 7 Chrysler.
10............................... Multi............... 3W.................. Air................. EGR................ 5 Toyota.
11............................... Multi............... 3W.................. No Air.............. EGR................ 1 Ford.
12............................... Multi............... 3W.................. No Air.............. No EGR............. 2 Chrysler.
13............................... Carb................ 3W+OX............... Air................. EGR................ 9 Toyota.
14............................... TBI................. 3W.................. No Air.............. EGR................ 3 Ford.
15............................... Multi............... 3W+OX............... Air................. EGR................ 4 GM.
16............................... Multi............... 3W.................. No Air.............. EGR................ 1 Toyota.
17............................... Multi............... 3W.................. No Air.............. No EGR............. 2 Mazda.
18............................... TBI................. 3W.................. No Air.............. EGR................ 3 GM.
19............................... Multi............... 3W+OX............... Air................. EGR................ 4 Ford.
20............................... Multi............... 3W.................. No Air.............. EGR................ 1 Nissan.
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Table B--Tech Group Definitions in Table A
----------------------------------------------------------------------------------------------------------------
Tech group Fuel system Catalyst Air injection EGR
----------------------------------------------------------------------------------------------------------------
1............................... Multi............. 3W................ No Air............ EGR.
2............................... Multi............. 3W................ No Air............ No EGR.
3............................... TBI............... 3W................ No Air............ EGR.
[[Page 666]]
4............................... Multi............. 3W+OX............. Air............... EGR.
5............................... Multi............. 3W................ Air............... EGR.
6............................... TBI............... 3W................ Air............... EGR.
7............................... TBI............... 3W+OX............. Air............... EGR.
8............................... TBI............... 3W................ No Air............ No EGR.
9............................... Carb.............. 3W+OX............. Air............... EGR.
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Legend:
Fuel system:
Multi = Multi-point fuel injection
TBI = Throttle body fuel injection
Carb = Carburetted
Catalyst:
3W = 3-Way catalyst
3W+OX = 3-Way catalyst plus an oxidation catalyst
Air Injection:
Air = Air injection
EGR = Exhaust gas recirculation
(2) Test vehicles for the higher emitter sub-fleet shall be selected
from the in-use fleet in accordance with paragraphs (a) and (b) of this
section and with Sec. 80.59. Test vehicles for the higher emitter sub-
fleet are not required to follow the pattern established in paragraph
(d)(1) of this section.
(3) The minimum test fleet size is 20 vehicles. Half of the vehicles
tested must be included in the normal emitter sub-fleet and half of the
vehicles tested must be in the higher emitter sub-fleet. If additional
vehicles are tested beyond the minimum of twenty vehicles, the
additional vehicles shall be distributed equally between the normal and
higher emitter sub-fleets.
(4) For each emitter group sub-fleet, 70 9.5%
of the sub-fleet must be LDVs, & 30 9.5% must be
LDTs. LDTs include light-duty trucks class 1 (LDT1), and light-duty
trucks class 2 (LDT2) up to 8500 lbs GVWR.