[Code of Federal Regulations]
[Title 40, Volume 18]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR88.302-93]

[Page 23-24]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 88--CLEAN-FUEL VEHICLES--Table of Contents
 
                   Subpart C--Clean-Fuel Fleet Program
 
Sec. 88.302-93  Definitions.

    The definitions in 40 CFR part 86 of this chapter also apply to this 
subpart. The definitions in this section apply to this subpart.
    Combination heavy-duty vehicle means a vehicle with a GVWR greater 
than 8,500 pounds (3,900 kilograms) which is comprised of a truck-
tractor and one or more pieces of trailered equipment. The truck-tractor 
is a self-propelled motor vehicle built on one chassis which encompasses 
the engine, passenger compartment, and a means of coupling to a cargo 
carrying trailer(s). The truck-tractor itself is not designed to carry 
cargo.

[[Page 24]]

    Inherently Low-Emission Vehicle means any LDV or LDT conforming to 
the applicable Inherently Low-Emission Vehicle standard, or any HDV with 
an engine conforming to the applicable Inherently Low-Emission Vehicle 
standard. No dual-fuel or flexible-fuel vehicles shall be considered 
Inherently Low-Emission Vehicles unless they are certified to the 
applicable standard(s) on all fuel types for which they are designed to 
operate.
    Partially-Covered Fleet pertains to a vehicle fleet in a covered 
area which contains both covered fleet vehicles and non-covered fleet 
vehicles, i.e., exempt from covered fleet purchase requirements.
    Single-unit heavy-duty vehicle means a self-propelled motor vehicle 
with a GVWR greater than 8,500 pounds (3,900 kilograms) built on one 
chassis which encompasses the engine, passenger compartment, and cargo 
carrying function, and not coupled to trailered equipment. All buses, 
whether or not they are articulated, are considered single-unit 
vehicles.