California Code of Regulations › Title 13 - Motor Vehicles › Division 3 - Air Resources Board › Chapter 9 - Off-Road Vehicles and Engines Pollution Control Devices › Article 4.5 - Off-Road Large Spark-Ignition Engines › Section 2433 - Emission Standards and Test Procedures - off-Road Large Spark-Ignition Engines

Current through Register 2024 Notice Reg. No. 28, July 12, 2024
(a) This section
				  applies to new off-road large spark-ignition engines produced on or after
				  January 1, 2001. For the purpose of this section, these engines are also
				  referred to as "new off-road LSI engines."
(b)
Standards.
(1)
(A)
Exhaust Emission Standards.
Exhaust emissions from off-road
				  large spark-ignition engines manufactured for sale, sold, or offered for sale
				  in California, or that are introduced, delivered or imported into California
				  for introduction into commerce, must not exceed:
Exhaust Emission Standards
(grams per brake horsepower-hour)
[grams per
					 kilowatt-hour](1)
Model
							 Year
Engine
							 Displacement
Durability
							 Period
HC +
							 NOx
Carbon
							 Monoxide
2002-2010
[LESS THAN EQUAL TO] 1.0
							 liter
1,000 hours or 2 years
9.0 [12.0]
410 [549]
2011 and subsequent
[LESS THAN EQUAL TO] 825
							 cc
1,000 hours or 2 years
6.0 [8.0]
410 [549]
2011-2014
> 825 cc - [LESS THAN EQUAL TO]
							 1.0 liter
1,000 hours or 2 years
4.8 [6.5]
280
							 [375]
2015 and subsequent
> 825 cc - [LESS THAN
							 EQUAL TO] 1.0 liter
1,000 hours or 2 years
0.6
							 [0.8]
15.4 [20.6]
2001-2003(2),(3)
> 1.0 liter
N/A
3.0 [4.0]
37.0 [49.6]
2004-2006(4)
>
							 1.0 liter
3500 hours or 5 years
3.0 [4.0]
37.0
							 [49.6]
2007-2009
> 1.0 liter
5000 hours
							 or 7 years
2.0 [2.7]
3.3 [4.4]
2010 and
							 subsequent(5),(6)
> 1.0
							 liter
5000 hours or 7 years
0.6 [0.8]
15.4 [20.6]
__________
Note: 
							 (1) For 2006 and previous
							 model years, standards in grams per kilowatt-hour are given only as a
							 reference. For 2007 and subsequent model years, pollutant emissions reported to
							 ARB by manufacturers must be in grams per kilowatt-hour.
(2) Small
							 volume manufacturers are not required to comply with these emission
							 standards.
(3)
							 Manufacturers must show that at least 25 percent of its California engine sales
							 comply with the standards in 2001, 50 percent in 2002, and 75 percent in
							 2003.
(4) The
							 standards for in-use compliance for engine families certified to the standards
							 in the row noted are 4.0 g/bhp-hr (5.4 g/kW-hr) hydrocarbon plus oxides of
							 nitrogen and 50.0 g/bhp-hr (67.0 g/kW-hr) carbon monoxide, with a useful life
							 of 5000 hours or 7 years. In-use averaging, banking, and trading credits may be
							 generated for engines tested in compliance with these in-use compliance
							 standards. If the in-use compliance level is above 3.0 but does not exceed 4.0
							 g/bhp-hr hydrocarbon plus oxides of nitrogen or is above 37.0 but does not
							 exceed 50.0 g/bhp-hr carbon monoxide, and based on a review of information
							 derived from a statistically valid and representative sample of engines, the
							 Executive Officer determines that a substantial percentage of any class or
							 category of such engines exhibits within the warranty periods noted in Section
							 2435, an identifiable, systematic
							 defect in a component listed in that section, which causes a significant
							 increase in emissions above those exhibited by engines free of such defects and
							 of the same class or category and having the same period of use and hours, then
							 the Executive Officer may invoke the enforcement authority under Section
							 2439, Title 13, California Code of
							 regulations to require remedial action by the engine manufacturer. Such
							 remedial action is limited to owner notification and repair or replacement of
							 defective components, without regard to the requirements set forth in Section
							 2439(b)(5) or
							 Section 2439(c)(5)(B)(vi).
							 As used in the section, the term "defect" does not include failures that are
							 the result of abuse, neglect, or improper maintenance.
(5) For
							 severe-duty engines, the HC+NOx standard is 2.7 g/kW-hr and the CO standard is
							 130.0 g/kW-hr.
(6) Small
							 volume manufacturers are required to comply with these emission standards in
							 2013.
(B)
				  For the 2007 through 2009 model years, you may alternatively certify your
				  engines according to the following formula instead of the standards in
				  paragraph (b)(1)(A) of this section:
(HC+NOx) x CO0.784 [LESS
					 THAN EQUAL TO] 8.57.
Where: HC + NOx=hydrocarbon plus oxides of nitrogen
					 family emissions level (FEL) in g/kW-hr
CO=carbon monoxide FEL in g/kW-hr
The HC+NOx and CO emission levels selected to satisfy this
					 formula, rounded to the nearest 0.1 g/kW-hr, become the emission standards that
					 apply for those engines. You may not select an HC+NOx FEL higher than 2.7
					 g/kW-hr or a CO FEL higher than 20.6 g/kW-hr.
(C)
Field Testing Standards.
The field testing standards for model year 2007 and subsequent off-road large
				  spark-ignition engines are described in subpart F, Title
				  40 CFR Sections
				  1048.101(c), as adopted July
				  13, 2005.