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[Federal Register Volume 60, Number 49 (Tuesday, March 14, 1995)]
[Proposed Rules]
[Pages 13663-13664]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-6266]

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ENVIRONMENTAL PROTECTION AGENCY

40 CFR Parts 50 and 53

[AD-FRL-5172-4]

National Ambient Air Quality Standards for Sulfur Oxides (Sulfur 
Dioxide)--Reproposal

AGENCY: U.S. Environmental Protection Agency (U.S. EPA).

ACTION: Extension of public comment period.

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SUMMARY: The EPA is announcing the extension of the public comment 
period on the proposed rule for the national ambient air quality 
standards (NAAQS) for sulfur oxides (sulfur dioxide) and associated 
changes to the requirements for Ambient Air Monitoring Reference and 
Equivalent Methods that were published on November 15, 1994 (59 FR 
58958).

DATES: Written comments must be received on or before April 14, 1995.

ADDRESSES: Submit written comments on the proposed action on the NAAQS 
(40 CFR part 50) (duplicate copies preferred) to Air and Radiation 
Docket Information Center (6102), Room M-1500, U.S. Environmental 
Protection Agency, Attn: Docket No. A-84-25, 401 M Street, SW., 
Washington, DC 20460. Comments on the proposed revisions to the Ambient 
Air Monitoring Reference and Equivalent Methods (40 CFR part 53) should 
be separated from those pertaining to the standards and sent to the 
same address, Attn: Docket No. A-94-42. These dockets, containing 
supporting information used in developing the proposed rule, are 
located in the Air and Radiation Docket Information Center of the U.S. 
Environmental Protection Agency, South Conference Center, Room M-1500, 
401 M Street, SW., Washington, DC 20460. The dockets may be inspected 
between 8:30 a.m. and 3:30 p.m. on weekdays, and a reasonable fee may 
be charged for copying.

 [[Page 13664]] FOR FURTHER INFORMATION CONTACT: Part 50 Notice--Ms. 
Susan Lyon Stone, Air Quality Strategies and Standards Division (MD-
15), U.S. Environmental Protection Agency, Research Triangle Park, NC 
27711, telephone (919) 541-1146. Part 53 Notice--Mr. Frank McElroy, 
Atmospheric Research and Exposure Assessment Laboratory (MD-77), U.S. 
Environmental Protection Agency, Research Triangle Park, NC 27711, 
telephone (919) 541-2622.

SUPPLEMENTARY INFORMATION: In order to allow additional time to review 
the Proposed Requirements for Implementation Plans and Ambient Air 
Quality Surveillance for SO2 National Ambient Air Quality 
Standards (40 CFR parts 51 and 58) before submitting comment on the 
National Ambient Air Quality Standards for Sulfur Oxides (Sulfur 
Dioxide)--Reproposal (40 CFR parts 50 and 53), the EPA is extending the 
public comment period on the 40 CFR parts 50 and 53 proposals from 
March 15, 1995 to April 14, 1995. The document that proposes for public 
comment the requirements for implementing the alternative measures and 
changes in the sulfur dioxide ambient air surveillance network will be 
published in the Federal Register on or about March 1, 1995.
    The comment period extension is also intended to provide additional 
opportunity for members of the medical community who are experts in the 
field of asthma treatment to provide comment on the health significance 
of the sulfur dioxide-induced effects. The extended comment period will 
also provide additional time to comment on other parts of the November 
15, 1994 notice (59 FR 58958).

List of Subjects

40 CFR Part 50

    Air pollution control, Carbon monoxide, Lead, Nitrogen dioxide, 
Ozone, Particulate matter, Sulfur oxides.

40 CFR Part 53

    Administrative practice and procedure, Air pollution control, 
Reporting and recordkeeping requirements.

    Dated: March 9, 1995.
Mary D. Nichols,
Assistant Administrator for Air and Radiation.
[FR Doc. 95-6266 Filed 3-13-95; 8:45 am]
BILLING CODE 6560-50-P
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