Kelly McMullen
Joined: 16 Apr 2008
Posts: 1188
Location: Sun Lakes AZ
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 Posted: Sun May 09, 2010 6:05 am Post subject: EPA Issues Proposed Rulemaking for Leaded Avgas |
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Might want to keep this in mind when you select compression ratio for
your engine:
On April 28, 2010, the Environmental Protection Agency (EPA) issued an
advance notice of proposed rulemaking (ANPRM), the first step in a
process that may lead to standards mandating GA’s transition to
unleaded avgas. This action allows the public to comment on the
current data being considered to develop standards to control lead
emissions from piston-powered aircraft.
Avgas is the only remaining transportation fuel in the United States
that contains lead. FAA is committed to continue working with the GA
community to test, adopt, and certify a new aviation gasoline fuel
standard. In addition, FAA established a GA alternative fuels program
at the FAA Technical Center to continue research of unleaded aviation
fuels and has issued many supplemental type certificates (STCs) to
allow aircraft with lower-performance engines to operate with unleaded
automobile gasoline.
Despite ongoing research, currently there is no definitive replacement
for unleaded avgas available that will meet the needs of all GA
aircraft. EPA will use data gathered through this comment-seeking
process, as well as work with FAA and industry, to decide whether to
enact restrictions on the use of leaded avgas. EPA estimates that lead
emissions from aircraft using leaded avgas accounts for approximately
half of the national inventory of lead emitted to air.
EPA will accept public comment on the ANPRM until June 28, 2010. To
view the ANPRM and to provide comments, go to www.regulations.gov and
search Docket ID: EPA-HQ-OAR-2007-0294.
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Kelly McMullen
A&P/IA, EAA Tech Counselor
KCHD |
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