APPENDIX F

FINAL REGULATION ORDER SUMMARY & RATIONALE

Recreational Marine Spark-Ignition Engines

• Title 13, California Code of Regulations

• Test Procedures
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SUMMARY AND RATIONALE FOR SPARK-IGNITION MARINE ENGINE

REGULATIONS AND TEST PROCEDURES

Note: This appendix provides a summary of, and the rationale for, the spark-ignition 

marine engine regulations and test procedures amendments approved by the 

Air Resources Board on December 16, 2011, and with subsequent conforming 

modifications authorized under Resolution 11-41. Revisions to the original 

summary and rationale document published on October 26, 2011, as part of the 

Staff Report: Initial Statement of Reasons, are indicated either by underlined

type to indicate additions (except that some existing headings within the 

document were underlined originally for emphasis, and remain so, and thus do 

not constitute new language) or by strikeout to indicate deletions.
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F-1

Summary and Rationale for Proposed Regulations

2447. California Exhaust Emission Standards and Test Procedures for 2001 Model 

Year and Later Spark-Ignition Marine Engines.

The purpose of this section is to identify and to incorporate by reference the required 

test procedures to be used for demonstrating compliance with the applicable emission 

standards of the spark-ignition marine engine category, which is necessary to control 

the hydrocarbon, carbon monoxide, and oxides of nitrogen emissions from these

sources. The amendment clarifies the most recent amendment date to this test 

procedure document.

California Exhaust Emission Standards and Test Procedures for 2001 Model Year 

and Later Spark-Ignition Marine Engines.

The purpose of this test procedure is to identify the exhaust emission standards and test 

procedures applicable for spark-ignition marine engines, which is necessary to control 

the hydrocarbon and carbon monoxide emissions from these sources. This test 

procedure is incorporated by reference in section 2447, title 13, California Code of 

Regulations.

Part III. Emission Test Equipment Provisions.

44. Lubricating Oil and Test Fuel.

The purpose of this section is to identify the fuel and engine lubricant specifications that 

are to be used for certification testing. This section was amended to allow spark-ignition 

marine engine manufacturers the optional use of the new California 10-percent 

ethanol-blend gasoline (E10), or other ARB-certified certification test fuel, which ARB 

will adopt for 2015 and subsequent model on-road motor vehicles, for 2013 through

2018 2019 model-year vessels and engines. Use of this E10, or other ARB-certified

certification test fuel, will become mandatory beginning with the 2019 2020 model year. 

The proposed optional and required use of this E10, or other ARB-certified certification

test fuel, is applicable to only exhaust emission test purposes.
F-2

(b)(1)

(iA) The purpose of this subsection is to identify the fuel to be used for 

certification testing of current production spark-ignition marine engines. This subsection 

was amended for formatting reasons, and has been lettered in accordance with current 

ARB hierarchical numbering/lettering practices.

(iiB) The purpose of this new subsection is to provide manufacturers the 

alternative of using the new California 10-percent content of ethanol-blend gasoline 

(E10), or other ARB-certified certification test fuel, for model years 2013-2018 2019. 

This new subsection has been lettered in accordance with current ARB hierarchical

numbering/lettering practices.

(b)(2)(C) The purpose of this new subsection is to require the new California 

10-percent content of ethanol-blend gasoline (E10), or other ARB-certified certification

test fuel, for all 2019 2020 and later model-year spark-ignition marine engines. This 

new subsection has been lettered in accordance with current ARB hierarchical 

numbering/lettering practices.