Proposed Regulations - Parts 50, 53, 58

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Description	Date	Bytes
Federal Register copy of the 12/09/98 "Air Quality Index Reporting (PSI)" Proposed Rule. For additional information see "Pollutant Standard Index (PSI)" area.	01-13-00	153903
"Guidance for Network Design and Optimum Site Exposure for PM2.5 and PM10" Draft Document #3 : Caution - Large file!	11-18-97	3203992
Proposed revision to Lead NAAQS (40CFR58)	10-31-97	16272
Revision to Lead NAAQS will be final 15 days after comment period ends if no adverse comments are received.	10-31-97	102023
`(There is no Part I of the proposed rule.)`
Proposed PM NAAQS (12/13/96)	1-22-97	1358807
Proposed O3 NAAQS (12/13/96)	1-22-97	311246
Proposed Interim Implementation Policy for PM and O3 NAAQS (12/13/96)	1-22-97	81413
Proposed Implementation of PM and O3 NAAQS and Regional Haze Regulations (12/13/96)	1-22-97	110733
Proposed Requirements for Designation of Reference and Equivalent Methods for PM2.5 (12/13/96)	1-22-97	2203544
1/14/97 Federal Register Notice of Revisions to Part VI of Proposed PM and O3 NAAQS	1-28-97	185803
Notice of Extended Public Comment period for O3 & PM2.5 proposed NAAQS from 2/18/97 to 3/12/97	3-11-97	38793
Federal Register Notice of Availability for possible design changes to PM2.5 Sampler (40CFR50 Appendix L)	3-10-97	16445
Field test Results - prototype of proposed PM2.5 Federal Reference Method	3-26-97	20583
Proposed Revision to Parts 51 & 58 for SO2	7-8-96	68892
Open Path Siting Criteria Proposal	7-8-96	104369

Proposed Regulations - Parts 50, 53, 58

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