STRUCTURE AND FUNCTION
CARB T ier 1 Emissions C ontrol S ystem The California Air the state’s state’s environThe California AirResources Resources Board Board (CARB) (CARB) is is the mental regulatory agency. agency. CARB has issued emissions regulations environmental regulatory CARB has issued emissions for certain types of industrial not already covered regulations for certain typesequipment of industrial equipment not by existalready by existing EPAregulation regulations. This new regu- using ing EPAcovered regulations. This new impacts vehicles lation impacts vehicles using “large “large spark-ignited” engines above spark-ignited” 25 horsepower,engines including lift above 25 horsepower, including lift trucks. The term “sparktrucks. The term “sparkignited” includes all engines using gasoline, ignited” includes all engines using gasoline, LP, and related LP, and related fuel types, such as Compressed Natural Gas. The fuel types, applies such asonly Compressed Natural Gas. The regulation regulation to new equipment, starting with units proapplies only to new equipment, starting with units produced duced in year 2001, and does not require existing equipment to be in year 2001, and does not require existing equipment to be modified to meet the new emissions standards. modified to meet the new emissions standards. The CARB regulations regulations require require lift lift truck The CARB truck manufacturers manufacturerstotomodify a percentage of the trucks sold into California, in year 2001, modify a percentage of the trucks sold intobeginning California, to incorporate an emissions control system (ECS) which will achieve beginning in year 2001, to incorporate an emissions control system (ECS) whichlevels will achieve emissions levels exhaust emissions defined exhaust within the regulations. In the foldefinedyears, within regulations. In thesold following years, the lowing thethe percentage of trucks with emissions reduction percentage of trucks sold with emissions reduction technology technology must increase each year until 2004, when the entire must increaseengine each year when thecompliant. entire sparksparkignited line until must 2004, be emissions This initial ignited engine line must be emissions compliant. This initial phase-in period is designated “Tier 1”, and defines exhaust emisphase-in period which is designated 1”, and defines exhaust at the sions standards must be “Tier achieved by the manufacturer emissions standards which“Tier must achievedwill by take the manutime of shipment. In 2004, 2” be regulations effect, with a facturer at the time of shipment. In 2004, “Tier 2” regulations proposal by the EPA to adopt this as a nationally-legislated standard. will take effect, with a proposal by the EPA to adopt this as a The emissions standards and phase-in percentages are and shown in nationally-legislated standard. The emissions standards the chart below. phase-in percentages are shown in the chart below.
Effective Date Emissions Limits CO (g/hp-hr) HC + NOx Useful Life / Durability Testing Emissions Limits (g/hp-hr)
Tier 1 CARB
Tier 2 CARB
Jan 2001 to Dec 2003 37 3
Jan 2004 to Dec 2006 37 3 3500hr/5yr 50 CO 4 HC + NOx
N/A
Warranty Period- Components
Phase-In % Production Line Testing In-Use Testing System Adjustment Tampering
< $400 > $400 2001 2002 2003
1500hr / 2yr 1500hr / 2yr 25% CA Sales 50% CA Sales 75% CA Sales Required N/A Resistant
37
2500hr / 3yr 3500hr / 5yr 100% USA Required Required Tamper-Proof
