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EPA/AR

RIN: 2060-AH92

Publication ID: Spring 1999

Title: Air Quality Index Reporting
Abstract: This regulation will update the Pollutant Standards Index (PSI) to reflect revisions to the NAAQS for ozone and particulate matter. The PSI program is codified in section 58.50 and appendix G to part 58. Section 58.50 and appendix G to part 58 require that States report to the public an air quality index, the Pollutant Standards Index, which translates ambient concentrations of five of the criteria pollutants to a uniform, numerical index, ranging from 0 to 500. The scale of the PSI is based on human health effects information. Revisions will be made to the ambient concentrations which specify the breakpoints between the PSI categories (i.e., the good, moderate, unhealthful, very unhealthful, and hazardous categories) and associated example health advisories.
Agency: Environmental Protection Agency(EPA)	Priority: Substantive, Nonsignificant
RIN Status: Previously published in the Unified Agenda	Agenda Stage of Rulemaking: Final Rule 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 7401 et seq

Timetable:

Action	Date	FR Cite
NPRM	12/09/1998	63 FR 67818
Final Action	04/00/1999

Additional Information: SAN No. 4073
Regulatory Flexibility Analysis Required: No	Government Levels Affected: Federal, Local, State, Tribal
Small Entities Affected: No
Included in the Regulatory Plan: No
Agency Contact: Susan Stone Environmental Protection Agency Air and Radiation C504-06, Research Triangle Park, NC 27711 Phone:919 541-1146 Fax:919 541-0237 Email: stone.susan@epa.gov Terence Fitz-Simons Environmental Protection Agency Air and Radiation MD-14, RTP, NC 27711 Phone:919 541-0889 Email: fitz-simons.terence@epa.gov