Honda BF5A Owner's Manual page 71

TECHNICAL & CONSUMER INFORMATION
One Star - Low Emission
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.
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.
Cleaner Watercraft - Get the Facts
1-800-END-SMOG www.arb.ca.gov
69