Here is a letter from the folks at Husqvarna sent to their dealers back in 2015. I kept a copy to show my students when a dealer I knew received an in person visit from an EPA investigator. He ended up with a verbal and written warning, as the regulation was less than 2 years old and they wanted to let people know they were out looking. He contacted Husqvarna and this was their reply.
To All Servicing Dealers,
It has come to our attention that certain proprietary carburetor adjustment tools are
becoming more readily available on the open market. These tools are necessary for the
proper adjustment of carburetors to ensure compliance with U.S. Environmental
Protection Agency emission regulations when service work is being performed.
US Code of Federal Regulations, Title 40: Protection of Environment
§1068.101(b) states:
(2) Defeat devices. You may not knowingly manufacture, sell, offer to sell, or
install, any part that bypasses, impairs, defeats, or disables the control of
emissions of any regulated pollutant … (EPA) may assess a civil penalty up to
$3,750 for each part in violation.
By selling the carburetor adjustment tools to consumers or making it available on the
internet, you may be viewed as selling a “Defeat device” and be subject to the above
penalties.
Please assist us to ensure these tools are only being used by your qualified staff and are
not made available for retail sale to the general public.
The part number for this tool is: 530 03 55-60 and is shown below.
Thank you for your support ensuring we are all operating in accordance with U.S
Environmental Protection Agency emission regulations.
Anthony Marchese
Vice President Part Sales and Service