55202 Federal Register / Vol. 62, No. 205 / Thursday, October 23, 1997 / Proposed Rules

MAJOR MILESTONES IN PM NAAQS REVIEW

Major milestones Target dates

PM NAAQS Review Plan to CASAC ................................................................................................................... October 1997.

Prepare CD Development Plan ........................................................................................................................... November 1997 to January 1998.

CASAC meeting on CD Development Plan ........................................................................................................ March 1998.

Prepare Workshop Drafts of CD Chapters .......................................................................................................... April to December 1998.

Peer Review Workshops ..................................................................................................................................... February/March 1999.

Prepare External Review Draft CD ..................................................................................................................... March to July 1999.

Draft CD to CASAC ............................................................................................................................................. July/August 1999.

Public Comment Period on Draft CD .................................................................................................................. August to October 1999.

CASAC meeting on Draft CD .............................................................................................................................. October/November 1999.

Prepare Revised CD and Draft SP ..................................................................................................................... November 1999 to February 2000.

Revised CD and Draft SP to CASAC .................................................................................................................. March 2000.

Public Comment Period on Revised CD and Draft SP ....................................................................................... March to May 2000.

CASAC meeting on Revised CD and Draft SP ................................................................................................... May/June 2000.

Prepare Revised SP and Final Revisions to CD ................................................................................................ May to August 2000.

Revised SP to CASAC; Complete Final CD ....................................................................................................... September 2000.

Public Comment Period on Revised SP ............................................................................................................. September to November 2000.

CASAC meeting on Revised SP ......................................................................................................................... November/December 2000.

Complete Final SP and Develop Proposal Package .......................................................................................... December 2000 to April 2001.

OMB/Interagency Review of Proposal Package (90 days) ................................................................................. May to July 2001.

Publish Proposal in FEDERAL REGISTER .............................................................................................................. August 2001.

Public Comment Period on Proposal (90 days) .................................................................................................. September to November 2001.

CASAC meeting on Proposal .............................................................................................................................. November 2001.

Review Public/CASAC Comments and Develop Promulgation Package ........................................................... December 2001 to April 2002.

OMB/Interagency Review of Promulgation Package (60 days) .......................................................................... May to June 2002.

Final Promulgation Package Signed by Administrator ........................................................................................ July 2002.

PM Research Program

The EPA is broadening its ongoing

PM research activities by developing, in

partnership with other Federal agencies,

a coordinated interagency PM research

program. This interagency program will

contribute to expanding scientific

knowledge of PM health effects, as well

as developing improved monitoring

methods and cost-effective mitigation

strategies. The interagency effort will

also promote further coordination with

other research organizations including

state-, local-, nonprofit-, and industrysponsored research groups. Beginning

this fall, public participation will also

be encouraged through workshops and

review of program documentation.

Workshops and the availability of

relevant documentation will be

announced in the Federal Register.

To aid identification of needed

research efforts, EPA is revising a

document, Research Needs for

Particulate Matter, in response to

comments received from CASAC on an

earlier draft document. This document

will identify research needed to

improve scientific information

supporting future health risk assessment

and review of the PM NAAQS. The

document will provide a useful

framework for coordination among

Federal agencies and other research

organizations. A complementary

document, Particulate Matter Research

Program Strategy, which will identify

the areas of emphasis for EPA’s research

program, is also being revised in

response to CASAC review. The EPA’s

research emphasis includes studies to

improve understanding of the formation

and composition of fine PM, the

characteristics or components of PM

that are responsible for its health effects,

and the mechanisms by which these

effects are produced, as well as

improved measurements and estimation

of population exposures to PM. These

EPA research efforts include

epidemiology, clinical studies, in vivo

and in vitro toxicology, atmospheric

sciences including monitoring and

modeling studies, development of data

on emissions of fine particles from

stationary and mobile sources, and

identification and evaluation of risk

management options. The results from

these efforts, as well as related efforts by

other Federal agencies and the general

scientific community, will advance the

scientific and technical bases for future

decisions on the PM NAAQS and for the

implementation of PM monitoring and

control efforts.

List of Subjects in 40 CFR Part 50

Environmental protection, Air

pollution control, Carbon monoxide,

Lead, Nitrogen dioxide, Ozone,

Particulate matter, Sulfur oxides.

Dated: October 17, 1997.

Carol M. Browner,

Administrator.

[FR Doc. 97–28143 Filed 10–22–97; 8:45 am]

BILLING CODE 6560–50–M

ENVIRONMENTAL PROTECTION

AGENCY

40 CFR Part 51

[Docket No. AD–FRL–5912–4]

Regional Haze Regulations Notice of

Proposed Rulemaking

AGENCY: U.S. Environmental Protection

Agency (US EPA).

ACTION: Reopening of public comment

period.

SUMMARY: The EPA is announcing the

reopening of the public comment period

on the proposed regional haze

regulations published on July 31, 1997

(62 FR 41138) to accept comments until

December 5, 1997.

DATES: Written comments must be

received on or before December 5, 1997.

ADDRESSES: Submit comments on the

proposed action, in duplicate if

possible, to: Office of Air and Radiation

Docket and Information Center (6102),

Attention: Docket No. A–95–38, U.S.

Environmental Protection Agency, 401

M Street, SW, Washington, DC 20460,

phone (202–260–7548), fax (202–260–

4400). Comments can also be submitted

by electronic mail to the following

address: A-and-RDocket@epamail.epa.gov. The docket

may be inspected at the above address

between 8:00 a.m. and 5:30 p.m. on

weekdays, and a reasonable fee may be

charged for copying.

FOR FURTHER INFORMATION CONTACT:

Mr. Bruce Polkowsky (telephone (919)

541–5532) or Mr. Richard Damberg

(telephone 919–541–5592), U.S. EPA,
Federal Register / Vol. 62, No. 205 / Thursday, October 23, 1997 / Proposed Rules 55203

Visibility and Ecosystems Protection

Group (MD–15), Research Triangle Park,

NC 27707.

SUPPLEMENTARY INFORMATION: Proposed

revisions to the existing visibility

regulations (40 CFR part 51.300–51.307)

to address regional haze were published

on July 31, 1997 and originally provided

that the comment period would close on

October 20, 1997. In writing and at the

September 18, 1997 public hearing in

Denver, Colorado, a number of

commenters requested an extension of

the public comment period for the

proposed regional haze regulations. In

response to these requests, and in order

to provide the public more time to better

understand and formulate comment on

these proposed regulations, EPA is

therefore reopening the public comment

period on these proposed revisions to 40

CFR part 51.

Dated: October 10, 1997.

Richard D. Wilson,

Acting Assistant Administrator for Air and

Radiation.

[FR Doc. 97–27858 Filed 10–22–97; 8:45 am]

BILLING CODE 6560–50–M

ENVIRONMENTAL PROTECTION

AGENCY

40 CFR Parts 52

[MN54–01–7279b; FRL–5913–2]

Approval and Promulgation of

Implementation Plan; Minnesota

AGENCY: Environmental Protection

Agency (EPA).

ACTION: Proposed rule.

SUMMARY: The United States

Environmental Protection Agency (EPA)

proposes full approval of Minnesota’s

1993 carbon monoxide (CO) emission

inventory. The inventory was submitted

by the State of Minnesota to satisfy a

certain Federal requirement that those

States containing CO nonattainment

areas (NAA’s) classified moderate and

serious to submit a revised emission

inventory (i.e., from the 1990 base year

inventory) at the end of each 3 year

period thereafter, until the area is

redesignated to attainment, of actual CO

season emissions from all sources in

accordance with EPA guidance. In the

final rules section of this Federal

Register, the EPA is approving these

actions as a direct final rule without

prior proposal because EPA views these

actions as noncontroversial 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 that direct final rule, no

further activity is contemplated in

relation to this proposed rule. If EPA

receives substantive adverse comments

which have not already been responded

to, the direct final rule will be

withdrawn and all public comments

received will be addressed in a

subsequent final rule based on the

proposed rule. EPA will not institute a

second comment period on this action.

Any parties interested in commenting

on this action should do so at this time.

DATES: Comments on this proposed rule

must be received on or before November

24, 1997.

ADDRESSES: Comments may be mailed to

Carlton T. Nash, Chief, Regulation

Development Section, Air Programs

Branch (AR–18J), United States

Environmental Protection Agency,

Region 5, 77 West Jackson Boulevard,

Chicago, Illinois, 60604. Copies of the

material submitted by the Minnesota

Pollution Control Agency may be

examined during normal business hours

at the same location.

FOR FURTHER INFORMATION CONTACT:

Charles Hatten at (312) 886–6031.

SUPPLEMENTARY INFORMATION: For

additional information see the direct

final rule published in the rules section

of this Federal Register.

Dated: October 9, 1997.

David A. Ullrich,

Acting Regional Administrator.

[FR Doc. 97–28140 Filed 10–22–97; 8:45 am]

BILLING CODE 6560–50–P

ENVIRONMENTAL PROTECTION

AGENCY

40 CFR Parts 52 and 81

[KY95–9722b; IN82b–1; FRL–5901–3]

Clean Air Act Promulgation of

Extension of Attainment Date for

Ozone Nonattainment Area; Kentucky;

Indiana

AGENCY: Environmental Protection

Agency (USEPA).

ACTION: Proposed rule.

SUMMARY: The U.S. Environmental

Protection Agency (USEPA) is

proposing to extend the attainment date

for the Louisville interstate moderate

ozone nonattainment area from

November 15, 1996, to November 15,

1997. This extension is based in part on

monitored air quality readings for the

national ambient air quality standard

(NAAQS) for ozone during 1996. In the

final rules section of this Federal

Register, the USEPA is approving these

actions as a direct final rule without

prior proposal because USEPA views

these actions as noncontroversial 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 that direct final rule, no

further activity is contemplated in

relation to this proposed rule. If USEPA

receives substantive adverse comments

which have not already been responded

to, the direct final rule will be

withdrawn and all public comments

received will be addressed in a

subsequent final rule based on the

proposed rule. USEPA will not institute

a second comment period on this action.

Any parties interested in commenting

on this action should do so at this time.

DATES: Comments on this proposed rule

must be received on or before November

24, 1997.

ADDRESSES: Comments may be mailed to

Joseph M. LeVasseur at the USEPA

Region 4 address listed below or to J.

Elmer Bortzer, Chief, Regulation

Development Section, Air Programs

Branch (AR–18J), Region 5 at the

address listed below. Copies of the

material submitted by the Kentucky

Natural Resources and Environmental

Protection Cabinet (KNREPC) may be

examined during normal business hours

at the following locations:

Environmental Protection Agency,

Atlanta Federal Center, Region 4 Air

Planning Branch, 61 Forsyth Street

SW., Atlanta, Georgia 30303–3104.

Natural Resources and Environmental

Protection Cabinet, 803 Schenkel

Lane, Frankfort, Kentucky 40601.

Copies of the materials submitted by

the Indiana Department of

Environmental Management (IDEM)

may be examined during normal

business hours at the following location:

Regulation Development Section, Air

Programs Branch (AR–18J), U.S.

Environmental Protection Agency,

Region 5, 77 West Jackson Boulevard,

Chicago, Illinois, 60604.

FOR FURTHER INFORMATION CONTACT:

Randolph O. Cano at (312) 886–6036 or

Joseph M. LeVasseur at (404) 562–9035.

SUPPLEMENTARY INFORMATION: For

additional information see the direct

final rule published in the rules section

of this Federal Register.

Dated: August 20, 1997.

A. Stanley Meiburg,

Acting Regional Administrator, Region 4.

Dated: August 19, 1997.

Michelle D. Jordan,

Acting Regional Administrator, Region 5.

[FR Doc. 97–28142 Filed 10–22–97; 8:45 am]

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