EMISSIONS
90-883728 JULY 2001 Page 3D-5
Dealer Responsibility:
When performing service on all 1998 and later outboards that carry a certification, atten-
tion must be given to any adjustments that are made that affect emission levels.
Adjustments must be kept within published factory specifications.
Replacement or repair of any emission related component must be executed in a manner
that maintains emission levels within the prescribed certification standards.
Dealers are not to modify the engine in any manner that would alter the horsepower or
allow emission levels to exceed their predetermined factory specifications.
Exceptions include manufacturers prescribed changes, such as that for altitude adjust-
ments. Also included would be factory authorized:
• Installation of performance style gear housings by Mercury Marine.
• Service replacement parts modified, changed or superceded by Mercury Marine.
Owner Responsibility:
The owner/operator is required to have engine maintenance performed to maintain emis-
sion levels within prescribed certification standards.
The owner/operator is not to modify the engine in any manner that would alter the horse-
power or allow emissions levels to exceed their predetermined factory specifications.
Single engine exceptions may be allowed with permission from the EPA for racing and
testing.
EPA Emission Regulations:
All new 1998 and later outboards manufactured by Mercury Marine are certified to the
United States Environmental Protection Agency as conforming to the requirements of the
regulations for the control of air pollution from new outboard motors. This certification is
contingent on certain adjustments being set to factory standards. For this reason, the fac-
tory procedure for servicing the product must be strictly followed and, whenever practica-
ble, returned to the original intent of the design.
The responsibilities listed above are general and in no way a complete listing of the rules
and regulations pertaining to the EPA laws on exhaust emissions for marine products. For
more detailed information on this subject, you may contact the following locations:
VIA U.S. POSTAL SERVICE:
Office of Mobile Sources
Engine Programs and Compliance Division
Engine Compliance Programs Group (6403J)
401 M St. NW
Washington, DC 20460
VIA EXPRESS or COURIER MAIL:
Office of Mobile Sources
Engine Programs and Compliance Division
Engine Compliance Programs Group (6403J)
501 3rd St. NW
Washington, DC 20001
EPA INTERNET WEB SITE:
http:/www.epa.gov/omswww
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