94-5872. Ozone Design Value Study of the Clean Air Act Amendments of 1990

[Federal Register Volume 59, Number 49 (Monday, March 14, 1994)]
[Unknown Section]
[Page 0]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 94-5872]


[[Page Unknown]]

[Federal Register: March 14, 1994]


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ENVIRONMENTAL PROTECTION AGENCY

[FRL-4849-2]

 

Ozone Design Value Study of the Clean Air Act Amendments of 1990

AGENCY: Environmental Protection Agency (EPA).

ACTION: Notice of availability of draft report on the Clean Air Act 
Ozone Design Value Study for public review and comment.

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SUMMARY: Section 183(g) of Title I of the Clean Air Act Amendments of 
1990 requires the Administrator to conduct a study of whether the 
methodology in use by the EPA, as of the date of enactment, for 
establishing a design value for ozone, provides a reasonable indicator 
of the ozone air quality of ozone nonattainment areas. The EPA is 
directed to obtain public review of the study report prior to 
submitting the report to Congress.
    The focus of the Ozone Design Value Study is EPA's ozone design 
value methodology. A design value may be viewed intuitively as a 
concentration value used to quantify the degree to which the level of 
an air quality standard has been exceeded. With the wording of the 
ozone standard, the appropriate design value is the concentration with 
expected number of exceedances equal to 1. These ozone design values 
were used to classify areas as marginal, moderate, serious, severe, or 
extreme in accordance with the provisions of the 1990 Clean Air Act 
Amendments.
    This notice announces the availability of a draft report of the 
Clean Air Act Ozone Design Value Study for public review and comment.

DATES: Comments must be received on or before April 14, 1994.

AVAILABILITY OF DRAFT REPORT: Single copies of the report are available 
from the U.S. EPA Library (MD-35), Research Triangle Park, North 
Carolina 27711, telephone number [phone]. Please refer to ``The 
Clean Air Act Ozone Design Value Study.''

FOR FURTHER INFORMATION CONTACT:
Mr. Warren P. Freas at [phone], Data Analysis Section, 
Monitoring and Reports Branch (MD-14), U.S. Environmental Protection 
Agency, Research Triangle Park, North Carolina 27711.

    Dated: March 4, 1994.
Ann E. Goode,
Acting Assistant Administrator for Air and Radiation.
[FR Doc. 94-5872 Filed 3-11-94; 8:45 am]
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