```

[Federal Register Volume 77, Number 60 (Wednesday, March 28, 2012)]
[Rules and Regulations]
[Page 18709]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-7487]

=======================================================================
-----------------------------------------------------------------------

ENVIRONMENTAL PROTECTION AGENCY

40 CFR Part 60

[EPA-HQ-OAR-2010-0873; FRL-9653-3]
RIN 2060-AH23

Quality Assurance Requirements for Continuous Opacity Monitoring 
Systems at Stationary Sources

AGENCY: Environmental Protection Agency (EPA).

ACTION: Withdrawal of direct final rule.

-----------------------------------------------------------------------

SUMMARY: The EPA published a direct final rule titled ``Quality 
Assurance Requirements for Continuous Opacity Monitoring Systems at 
Stationary Sources'' in the Federal Register on February 14, 2012. 
Because we received adverse comments to the parallel proposed rule 
issued under the same name on February 14, 2012, we are withdrawing the 
direct final rule.

DATES: As of March 28, 2012, the EPA withdraws the direct final rule 
published on February 14, 2012 (77 FR 8160).

ADDRESSES: The EPA has established a docket for this action under 
Docket ID No. EPA-HQ-OAR-2010-0873. All documents in the docket are 
listed on the http://wwww.regulations.gov Web site. Although listed in 
the index, some information is not publicly available, e.g., 
Confidential Business Information or other information whose disclosure 
is restricted by statute. Certain other material, such as copyrighted 
material, will be publicly available only in hard copy. Publicly 
available docket materials are available either electronically in 
www.regulations.gov or in hard copy at the Procedure 3--Quality 
Assurance Requirements for Continuous Opacity Monitoring Systems at 
Stationary Sources Docket, EPA/DC, EPA West, Room 3334, 1301 
Constitution Ave. NW., Washington, DC. The Docket Facility and Public 
Reading Room are open from 8:30 a.m. to 4:30 p.m., Monday through 
Friday, excluding legal holidays. The telephone number for the Air 
Docket is (202) 566-1742, and the telephone number for the Public 
Reading Room is (202) 566-1744.

FOR FURTHER INFORMATION CONTACT: Ms. Lula H. Melton, U.S. EPA, Office 
of Air Quality Planning and Standards, Air Quality Assessment Division, 
Measurement Technology Group (Mail Code: E143-02), Research Triangle 
Park, NC 27711; telephone number: (919) 541-2910; fax number: (919) 
541-0516; email address: melton.lula@epa.gov.

SUPPLEMENTARY INFORMATION: The EPA issued ``Quality Assurance 
Requirements for Continuous Opacity Monitoring Systems at Stationary 
Sources'' as a direct final rule in the Federal Register on February 
14, 2012 (77 FR 8160). The EPA issued a parallel proposed rule under 
the same name on February 14, 2012 (77 FR 8209). We stated in the 
direct final rule that if we received adverse comments to the parallel 
proposed rule, we would publish a timely notice of withdrawal of the 
direct final rule in the Federal Register. We received adverse comments 
on the proposed rule and are consequently withdrawing the ``Quality 
Assurance Requirements for Continuous Opacity Monitoring Systems at 
Stationary Sources'' published as a direct final rule in the Federal 
Register on February 14, 2012.

    Dated: March 21, 2012.
Gina McCarthy,
Assistant Administrator.
[FR Doc. 2012-7487 Filed 3-27-12; 8:45 am]
BILLING CODE 6560-50-P
```