Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 240 - MOBILE SOURCES › Subpart A - DEFINITIONS AND GENERAL PROVISIONS › Section 240.102 - Definitions

Current through Register Vol. 48, No. 28, July 12, 2024
All terms that appear in this Part have the definitions
				  specified in this Section, the Vehicle Emissions Inspection Law of 2005 [625
				  ILCS 5/13C ], and 35 Ill. Adm. Code 201 and 211. When conflicting definitions
				  occur between this Section and 35 Ill. Adm. Code 201 or 211, the definitions of
				  this Section apply in this Part.
"Agency" means the Illinois Environmental Protection
				  Agency.
"Diesel engine" means all types of internal-combustion
				  engines in which air is compressed to a temperature sufficiently high to ignite
				  fuel injected directly into the cylinder area.
"Diesel locomotive" means a diesel engine vehicle designed to
				  move cars on a railway.
"Evaporative system integrity test" means a test of a
				  vehicle's evaporative system. The test shall either consist of a leak check of
				  a vehicle's fuel cap with a fuel cap pressure decay tester (fuel cap pressure
				  decay test), a fuel cap leak flow tester (fuel cap leak flow test), or a visual
				  functional check, as applicable.
"Fuel cap" means a device used to seal a vehicle's fuel
				  inlet.
"Fuel cap leak flow test" means a test which may be performed
				  in accordance with this Part on a vehicle's fuel cap using a fuel cap leak flow
				  tester to determine whether the vehicle complies with the evaporative system
				  emission standards of this Part.
"Fuel cap leak flow tester" means a device used to determine
				  the leak flow integrity of a vehicle's fuel cap by comparing the measured leak
				  flow of the fuel cap with an established fuel cap leak flow standard.
"Fuel cap pressure decay test" means the test performed in
				  accordance with this Part on a vehicle's fuel cap using a fuel cap pressure
				  decay tester to determine whether the vehicle complies with the evaporative
				  system emission standards of this Part.
"Fuel cap pressure decay tester" means a device used to
				  determine the pressure decay integrity of a vehicle's fuel cap by monitoring
				  the pressure behind the fuel cap for a ten second period and comparing the
				  measured pressure decay of the fuel cap to an established fuel cap pressure
				  decay standard.
"Fuel cap visual functional test" means the test performed in
				  accordance with this Part on a vehicle's fuel cap using visual analysis to
				  determine whether the vehicle complies with the evaporative system emission
				  standards of this Part.
"Gross vehicle weight rating" or"GVWR" means the value
				  specified by the manufacturer as the maximum design loaded weight of a single
				  vehicle.
"Heavy duty vehicle" means any motor vehicle rated at more
				  than 8500 pounds GVWR or that has a vehicle curb weight of more than 6000
				  pounds or that has a basic vehicle frontal area in excess of 45 square
				  feet.
"High idle" means a vehicle operating condition with engine
				  disconnected from an external load (placed in either neutral or park) and
				  operating at speed of 2500 ±300 RPM.
"Idle mode" means that portion of a vehicle emission test
				  procedure conducted with the engine disconnected from an external load and
				  operating at minimum throttle.
"Initial idle mode" means the first of up to two idle mode
				  sampling periods during a steady-state idle mode test, during which exhaust
				  emission measurements are made with the vehicle in "as-received"
				  condition.
"Light duty truck 1" means a motor vehicle rated at 6000
				  pounds maximum GVWR or less and which has a vehicle frontal area of 45 square
				  feet or less, and which is designed primarily for purposes of transportation of
				  property or is a derivation of such a vehicle, or is designed primarily for
				  transportation of persons and has a capacity of more than 12 persons, or is
				  available with special features enabling off-street or off-highway operation
				  and use.
"Light duty truck 2" means a motor vehicle rated between 6001
				  and 8500 pounds maximum GVWR and which has a vehicle frontal area of 45 square
				  feet or less, and which is designed primarily for purposes of transportation of
				  property or is a derivation of such a vehicle, or is designed primarily for
				  transportation of persons and has a capacity of more than 12 persons, or is
				  available with special features enabling off-street or off-highway operation
				  and use.
"Light duty vehicle" means a passenger car or passenger car
				  derivative capable of seating 12 passengers or fewer.
"Measured values" means five-second running averages of
				  exhaust emission concentrations sampled at a minimum rate of twice per
				  second.
"Model year" means the year of manufacture of a motor vehicle
				  based upon the annual production period as designated by the manufacturer and
				  indicated on the title and registration of the vehicle. If the manufacturer
				  does not designate a production period for the vehicle, then "model year" means
				  the calendar year of manufacture.
"Motor vehicle", as used in this Part, shall have the same
				  meaning as in Section 1-146 of the Illinois Vehicle Code [625 ILCS
				  5/1-146 ].
"Opacity" means the percentage of light transmitted from a
				  source that is prevented from reaching a light detector.
"Preconditioning mode" means a period of steady-state
				  high-idle operation conducted to ensure that the engine and emissions control
				  system components are operating at normal operating temperatures, thus
				  minimizing false failures caused by improper or insufficient warm-up.
"Second-chance idle mode" means the second of two idle mode
				  sampling periods during a steady-state idle mode test, preceded by a
				  preconditioning mode and utilized as a second chance to pass idle exhaust
				  emission standards immediately following an initial idle mode failure.
"Snap-acceleration test" means a test to measure exhaust
				  smoke opacity from heavy-duty diesel powered vehicles in accordance with the
				  SAE J1667 procedure, incorporated by reference at Section
				  240.107
				  of this Subpart.
"Steady-state idle test" means a vehicle emission test
				  procedure consisting of an initial idle mode measurement of exhaust emissions
				  followed, if necessary, by a loaded or high idle preconditioning mode and a
				  second-chance idle mode.
"Vehicle curb weight" means the actual vehicle weight plus
				  standard equipment and a full fuel tank.
"Visual inspection test" means a visual examination of a
				  vehicle's malfunction indicator lamp (MIL) consisting of verifying the status
				  of the MIL in the key-on/engine off position followed by verifying the status
				  of the MIL in the key-on/engine on position to determine the status of the MIL
				  and existence of an emission related malfunction with the
				  vehicle.