1 

### Proposed Regulation Order

Note: This document is printed in a style to indica te changes from the existing provisions. All existing language is indicated by plain type. All additions to language are indicated by underlined text. All deletions to language are indicated by strikeout . Only those sections with proposed changes are in cluded.

Amend Article 4.5, Chapter 9, Division 3, Title 13, California Code of Regulations, to

read as follows:

Chapter 9. Off-Road Vehicles and Engines Pollution Control Devices

Article 4.5. Off-Road Large Spark-Ignition Engines

§ 2433. Emission Standards and Test Procedures - Of f-Road Large Spark-Ignition Engines.

(a) [No Change]

(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 Cal ifornia 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 H

ydrocarbon plus Oxides of Nitrogen HC +
NO

x Carbon

Monoxide

2002 and subsequent

-2010 ≤ 1.0 liter 1,000 hours or 2 years 9.0

[12.0] 410

[549]

2011 and subsequent ≤ 825 cc 1,000 hours or 2 years 6.0

[8.0] 410

[549]

2011 - 2014 > 825 cc - ≤ 1.0 liter 1,000 hours or 2 years 4.8

[6.5] 280

[375]

2015 and subsequent > 825 cc - ≤ 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]2

Note: (1) For 2006 and previous model years, standa rds in grams per kilowatt-hour are given only as

a reference. For 2007 and subsequent model years, p ollutant 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 perce nt of its California engine sales comply with

the standards in 2001, 50 percent in 2002, and 75 p ercent 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 pl us 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 gene rated for engines tested in compliance with these in-use compliance standards. If the in-u se compliance level is above 3.0 but does not exceed 4.0 g/bhp-hr hydrocarbon plus oxide s 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 representati ve 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 Secti on 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 hour s, then the Executive Officer may invoke the enforcement authority under Section 2439 , Title 13, California Code of regulations to require remedial action by the engin e manufacturer. Such remedial action is limited to owner notification and repair or replace ment of defective components, without regard to the requirements set forth in Section 243 9(b)(5) or Section 2439(c)(5)(B)(vi). As used in the section, the term “defect” does not inc lude failures that are the result of abuse, neglect, or improper maintenance. (5) For severe-duty engines, the HC+NOx standard i s 2.7 g/kW-hr and the CO standard is

130.0 g/kW-hr. (6) Small volume manufacturers are required to com ply with these emission standards in 2013.



### (B) [No Change]

(C) [No Change]

(2) (A) Optional Exhaust Emission Standards. Manufacturers may certify off

- road large spark

- ignition LSI engines manufactured for sale, sold, or offered fo r sale in California, or that are introduced, delivered or im ported into California for introduction into commerce to the following optional low emissio n standards.

Optional Exhaust Emission Standards (grams per brake horsepower-hour) [grams per kilowatt-hour] (1)

Model Year Engine

Displacement Durability

Period HC+NOx Carbon

Monoxide

2007 - 2009 > 1.0 liter 5000 hours or 7 years 1.5

[2.0] 4.8

[6.4]

2007 - 2009 > 1.0 liter 5000 hours or 7 years 1.0

[1.3] 8.3

[11.1]

2007 - 2009 > 1.0 liter 5000 hours or 7 years 0.6

[0.8] 15.4

[20.6]3

2007 - 2009 > 1.0 liter 5000 hours or 7 years 0.4

[0.5] 15.4

[20.6]

2007 - 2009 > 1.0 liter 5000 hours or 7 years 0.2

[0.3] 15.4

[20.6]

2007 - 2009 > 1.0 liter 5000 hours or 7 years 0.1

[0.1] 15.4

[20.6]

2010 and subsequent > 1.0 liter 5000 hours or 7 years 0.4

[0.5] 15.4

[20.6]

2010 and subsequent > 1.0 liter 5000 hours or 7 years 0.2

[0.3] 15.4

[20.6]

2010 and subsequent > 1.0 liter 5000 hours or 7 years 0.1

[0.1] 15.4

[20.6]

Note: (1) Pollutant emissions reported to ARB by ma nufacturers must be in grams per kilowatt-hour.



### (B) Field Testing Standards . The field testing standards for optional emission

standard off

- road large spark

- ignition LSI engines shall be 140 percent of the corresponding OLES optional HC+NOx standard and 150 percent of the correspondi ng OLES optional CO standard, rounded to the nearest tenth of one g ram, using the field testing procedures described in subpart F, Title 40 CFR Section 1048.101(c), as adopted July 13, 2005.

(3) Crankcase Emissions. No crankcase emissions shall be discharged into the ambient atmosphere from any new 2001 or later model year off-road LSI engines.

(4) Evaporative Emission Standards.

(A) Starting in the 2007 model year, LSI engines over one liter that run on a volatile liquid fuel (such as gasoline), must meet the following evaporative emissions standards and requirements:

1. (A) Evaporative hydrocarbon emissions may not exceed 0 .2 grams per gallon of fuel tank capacity when measured with the test procedures for evaporative emissions as described in subpart F, Title 40 Code of Federal Regulations (CFR) Sec.1048, as adopted July 13, 2005.

2. (B) For nonmetallic fuel lines, you must specify and u se products that meet the Category 1 specifications in SAE J2260 (is sued November 1996).

3. (C) Liquid fuel in the fuel tank may not reach boiling during continuous engine operation in the final installation at an am bient temperature of 30o C. Note that gasoline with a Reid vapor pressure of 62 kPa (9 ps i) begins to boil at about 53o C.

4. (D) Design-based certification as described in subpart F, Title 40 CFR Sections 1048.105 and 1048.245, as adopted July 13, 2005, may be used instead of generating new emission data.

(B) Starting with the 2011 model year, LSI engine s with an engine displacement less than or equal to 1.0 liter that r un on a volatile liquid fuel (such as gasoline), must meet the evaporative emission requi rements for small off-road engines, which are specified in Title 13, Chapter 15, Articl e 1, except that the small volume tank4



### exemption set out in Title 13 section 2766 is not a vailable for such LSI engines and/or equipment manufacturers that use such LSI engines.

(5) Recreational Vehicle Engines . Except as noted below, starting with the 2011 MY, LSI engines with an engine displacement less th an or equal to 1.0 liter used in offhighway motor vehicles that, with the exception of payload capacity, meet the “Off-Road Sport Vehicle” or “Off-Road Utility Vehicle” defini tions in Title 13, Section 2411, must
meet the exhaust emission standards in Section 2411 (b)(1)(A). LSI engines with an engine displacement greater than 825 cc but less th an or equal to 1.0 liter need not meet the 2015 and subsequent exhaust emission stand ards in Section 2411 (b)(1)(A). These engines are subject to the test procedures an d certification procedures for offhighway recreational vehicles and engines which are specified in Title 13, Chapter 9,

Article 3.

(c) [No Change]

(d) (1) The test procedures for determining certification and compliance with the
standards for exhaust emissions from new off

- r oad LSI engines with an engine displacement equal to or less than or equal to 1.0 liter sold in the state are set forth in
“California Exhaust Emission Standards and Test Pro cedures for 1995-2004 Small OffRoad Engines,” as last amended July 26, 2004 or “Ca lifornia Exhaust Emission
Standards and Test Procedures for 2005 and Later Sm all Off-Road Engines,” adopted July 26, 2004.

(2) The test procedures for determining certificati on and compliance with the standards for evaporative emissions from new model year 2011 and subsequent LSI engines with an engine displacement less than or eq ual to 1.0 liter are set forth in “Test Procedure for Determining Permeation Emissions from Small Off-Road Engine Equipment Fuel Tanks (TP-901),” adopted July 26, 20 04, “Test Procedure for Determining Diurnal Evaporative Emissions from Smal l Off-Road Engines (TP-902),” adopted July 26, 2004, “Certification and Approval Procedures for Small Off-Road Engine Fuel Tanks (CP-901)”, adopted July 26, 2004, and “Certification and Approval Procedures for Evaporative Emission Control Systems (CP-902)”, adopted July 26,

2004.

(e) [No Change]

NOTE: Authority cited: Sections 39600, 39601, 43013 , 43018, 43101, 43102 and 43104, Health and Safety Code. Reference: Sections 43013, 43017, 43018, 43101, 43102, 43104, 43105, 43150, 43151, 43152, 43153, 43 154, 43205.5, 43210, 43210.5, 43211 and 43212, Health and Safety Code.