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Lead (Pb) Standards -
Documents from Previous Review -
Federal Register Notices

Note: EPA no longer updates this information, but it may be useful for historical purposes. See the Lead Standards Home Page for documents from the current review of the Lead NAAQS.

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	File Description	File Date	File Types
	National Primary and Secondary Ambient Air Quality Standards for Lead: Final Rulemaking	Oct 1978	4 MB
	National Primary and Secondary Ambient Air Quality Standards for Lead: Proposed Rule	Dec 1977	3.2 MB
	Addition of Lead to List of Criteria Air Pollutants	Apr 1976	178 KB

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