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EPA/AR RIN: 2060-AP79 Publication ID: Spring 2010 
Title: Lead Emissions From Piston-Engine Aircraft Using Leaded Aviation Gasoline 
Abstract: The purpose of this action is to further respond to a petition submitted by Friends of the Earth (FOE) in 2006. In the petition, FOE requests that EPA find that lead emissions from general aviation aircraft may reasonably be anticipated to endanger public health and welfare and that EPA propose emissions standards under the Clean Air Act for lead from general aviation aircraft. Alternatively, FOE requests that EPA commence a study and investigation of the health and environmental impacts of lead emissions from general aviation aircraft, if EPA believes that insufficient information exists to make such a finding. In 2007, EPA issued a Federal Register notice seeking comment on FOE's petition. The notice asked a series of questions seeking information on exposure to lead emissions from general aviation aircraft, lead emission rates from general aviation aircraft, unleaded aviation fuel options, and engine technology. EPA has long-standing concerns regarding exposure to lead, particularly during childhood. The most recent lead National Ambient Air Quality Standards review, finalized in 2008, found that serious health effects occur at much lower levels of lead in blood than previously identified and did not identify a safe level of lead exposure. Emissions of lead from piston-engine aircraft using leaded aviation gasoline (avgas) comprise over half of the national inventory of lead emitted to air. There are almost 20,000 airport facilities in the U.S. at which leaded avgas is used. This action will describe the lead inventory related to use of leaded avgas, air quality and exposure information, additional information the Agency is collecting related to the impact of lead emissions from piston-engine aircraft on air quality and will request comments on this information. 
Agency: Environmental Protection Agency(EPA)  Priority: Other Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Prerule Stage 
Major: No  Unfunded Mandates: No 
CFR Citation: Not Yet Determined     (To search for a specific CFR, visit the Code of Federal Regulations.)
Legal Authority: 42 USC 7571   
Legal Deadline:  None
Timetable:
Action Date FR Cite
ANPRM  04/00/2010    
Additional Information: SAN No. 5373.
Regulatory Flexibility Analysis Required: Undetermined  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Data Printed in the FR: No 
Agency Contact:
Marion Hoyer
Environmental Protection Agency
Air and Radiation
AAHEBTC,
Ann Arbor, MI 48105
Phone:734 214-4513
Email: hoyer.marion@epa.gov

Meredith Pedde
Environmental Protection Agency
Air and Radiation
AAHEBTC,
Ann Arbor, MI 48105
Phone:734 214-4748
Email: Pedde.Meredith@epamail.epa.gov