The one-star label identifies engines that meet the Air Resources Board’s 2001 exhaust emission standards. Engines meeting these standards have 75% lower emissions than conventional carbureted two-stroke engines. These engines are equivalent to the U.S. EPA’s 2006 standards for marine engines.
Two Stars - Very Low Emission
The two-star label identifies engines that meet the Air Resources Board’s 2004 exhaust emission standards. Engines meeting these standards have 20% lower emissions than One Star - Low Emission engines.
EMISSIONS
Three Stars - Ultra Low Emission
The three-star label identifies engines that meet the Air Resources Board’s 2008 exhaust emission standards. Engines meeting these standards have 65% lower emissions than One Star - Low Emission engines.
