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Lead Designations

Lead Designations Policy Guidance

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2008 Standards

National Ambient Air Quality Standards for Lead; Final Rule (PDF) (100 pp, 1.2MB) November 12, 2008

Area Designations for the 2008 Revised Lead National Ambient Air Quality Standards; Letter to EPA Regional Administrators (PDF) (3 pp, 731KB) August 21, 2009

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