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Proposed Regulations - Parts 50, 53, 58

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Description Date Bytes Type
"Guidance for Network Design and Optimum Site Exposure for PM2.5 and PM10" Draft Document #3 : Caution - Large file! 11-18-97 3203992 pdf icon
Proposed revision to Lead NAAQS (40CFR58) 10-31-97 16272 pdf icon
Revision to Lead NAAQS will be final 15 days after comment period ends if no adverse comments are received. 10-31-97 102023 pdf icon
(There is no Part I of the proposed rule.)
Proposed PM NAAQS (12/13/96) 1-22-97 1358807 pdf icon
Proposed O3 NAAQS (12/13/96) 1-22-97 311246 pdf icon
Proposed Interim Implementation Policy for PM and O3 NAAQS (12/13/96) 1-22-97 81413 pdf icon
Proposed Implementation of PM and O3 NAAQS and Regional Haze Regulations (12/13/96) 1-22-97 110733 pdf icon
Proposed Requirements for Designation of Reference and Equivalent Methods for PM2.5 (12/13/96) 1-22-97 2203544 pdf icon
1/14/97 Federal Register Notice of Revisions to Part VI of Proposed PM and O3 NAAQS 1-28-97 185803 pdf icon
Federal Register Notice of Availability for possible design changes to PM2.5 Sampler (40CFR50 Appendix L) 3-10-97 16445 pdf icon
Field test Results - prototype of proposed PM2.5 Federal Reference Method 3-26-97 20583 Zip file icon
Proposed Revision to Parts 51 & 58 for SO2 7-8-96 68892 Zip file icon


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