[Federal Register Volume 71, Number 112 (Monday, June 12, 2006)]
[Proposed Rules]
[Pages 33668-33669]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 06-5251]


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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 52

[EPA-R05-OAR-2006-0004; FRL-8176-5]


Approval and Promulgation of Air Quality Implementation Plans; 
Indiana

AGENCY: Environmental Protection Agency (EPA).

ACTION: Proposed rule.

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SUMMARY: EPA is proposing to approve revisions to the Indiana State 
Implementation Plan (SIP) for ozone. The state is adding four chemical 
compounds to its list of compounds that are now exempt from being 
considered a volatile organic compound (VOC). Indiana also is removing 
a compound from the list of hazardous air pollutants (HAP). The 
revisions Indiana made parallel the changes EPA made to our VOC 
definitions and HAP list on November 29, 2004 and that became effective 
on December 29, 2004.
    Four VOCs were found by EPA to make a negligible contribution to

[[Page 33669]]

tropospheric ozone formation. The compounds are: 1,1,1,2,2,3,3-
heptafluoro-3-methoxy-propane, 3-ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-
dodecafluoro-2-(trifluoromethyl)hexane, 1,1,1,2,3,3,3-
heptafluoropropane, and methyl formate. Companies producing or using 
the four compounds will no longer need to follow the VOC rules for 
these compounds.
    The requirements for t-butyl acetate are also modified. It is not 
considered a VOC for emission limits and content requirements. T-butyl 
acetate will still be considered a VOC for the recordkeeping, emissions 
reporting, and inventory requirements.
    Indiana is removing ethylene glycol monobutyl ether (EGBE) (2-
Butoxyethanol) from its HAP list, too. EGBE will no longer be 
considered a hazardous air pollutant.

DATES: Written comments must be received on or before July 12, 2006.

ADDRESSES: Submit your comments, identified by Docket ID No. EPA-R05-
OAR-2006-0004, by one of the following methods:
     http://www.regulations.gov: Follow the online instructions 
for submitting comments.
     E-mail: [email protected].
     Fax: (312) 886-5824.
     Mail: John M. Mooney, Chief, Criteria Pollutant Section, 
Air Programs Branch (AR-18J), U.S. Environmental Protection Agency, 77 
West Jackson Boulevard, Chicago, Illinois 60604.
     Hand Delivery: John M. Mooney, Chief, Criteria Pollutant 
Section, Air Programs Branch (AR-18J), U.S. Environmental Protection 
Agency, 77 West Jackson Boulevard, Chicago, Illinois 60604. Such 
deliveries are only accepted during the Regional Office's normal hours 
of operation, and special arrangements should be made for deliveries of 
boxed information. The Regional Office's official hours of business are 
Monday through Friday, 8:30 a.m.to 4:30 p.m. excluding Federal 
holidays.
    Please see the direct final rule which is located in the Rules 
section of this Federal Register for detailed instructions on how to 
submit comments.

FOR FURTHER INFORMATION CONTACT: Matt Rau, Environmental Engineer, 
Criteria Pollutant Section, Air Programs Branch (AR-18J), Environmental 
Protection Agency, Region 5, 77 West Jackson Boulevard, Chicago, 
Illinois 60604, (312) 886-6524, [email protected].

SUPPLEMENTARY INFORMATION: In the Final Rules section of this Federal 
Register, EPA is approving the State's SIP submission as a direct final 
rule without prior proposal because the Agency views this as a 
noncontroversial submission and anticipates no adverse comments. A 
detailed rationale for the approval is set forth in the direct final 
rule. If no adverse comments are received in response to this rule, no 
further activity is contemplated. If EPA receives adverse comments, the 
direct final rule will be withdrawn and all public comments received 
will be addressed in a subsequent final rule based on this proposed 
rule. EPA will not institute a second comment period. Any parties 
interested in commenting on this action should do so at this time. 
Please note that if EPA receives adverse comment on an amendment, 
paragraph, or section of this rule and if that provision may be severed 
from the remainder of the rule, EPA may adopt as final those provisions 
of the rule that are not the subject of an adverse comment. For 
additional information, see the direct final rule which is located in 
the Rules section of this Federal Register.

    Dated: May 16, 2006.
Norman Niedergang,
Acting Regional Administrator, Region 5.
[FR Doc. 06-5251 Filed 6-9-06; 8:45 am]
BILLING CODE 6560-50-P