### 13440 Federal Register / Vol. 73, No. 50 / Thursday, March 13, 2008 / Rules and Regulations
(1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51.

(2) For service information identified in this AD, contact PILATUS AIRCRAFT LTD., Customer Service Manager, CH

– 6371 STANS, Switzerland; telephone: +41 (0)41 619 62 08; fax: +41 (0)41 619 73 11; e-mail: SupportPC12@pilatus-aircraft.com

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(3) You may review copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Room 506, Kansas City, Missouri 64106; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202

– 741

– 6030, or go to: http://www.archives.gov/federal-register/ cfr/ibr-locations.html

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Issued in Kansas City, Missouri on March 5, 2008. David R. Showers, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. E8

– 5008 Filed 3

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**DEPARTMENT OF THE TREASURY Internal Revenue Service**  **26 CFR Part 301**
**[TD 9380]**

**RIN 1545**

**– BC45**  **Substitute for Return; Correction**
**AGENCY :**  Internal Revenue Service (IRS), Treasury. **ACTION :**  Correction to final regulations and removal of temporary regulations.
**SUMMARY :**  This document corrects final regulations and removal of temporary regulations (TD 9380) that was published in the Federal Register on Wednesday, February 20, 2008 (73 FR 9188), relating to substitutes for returns. **DATES :**  The correction is effective March 13, 2008. **FOR FURTHER INFORMATION CONTACT :**  Alicia E. Goldstein at (202) 622

– 3630 (not a toll-free number). **SUPPLEMENTARY INFORMATION :**  Background

The final regulations and removal of temporary regulations, (TD 9380) that is the subject of this correction is under section 6020 of the Internal Revenue Code. Need for Correction

As published, TD contains errors that may prove to be misleading and are in need of clarification. Correction of Publication Accordingly, the publication of final regulations and removal of temporary regulations (TD 9380) that were the subject of FR. Doc. E8

– 3100, are corrected as follows:

1. On page 9188, in the preamble, column 2, under the paragraph heading

‘‘ Background ’’ , first full paragraph of the column, line 17, the language

‘‘ prompted the IRS and the Treasury ’’ is corrected to read ‘‘ prompted the Service and the Treasury ’’

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2. On page 9188, in the preamble, column 2, under the paragraph heading

‘‘ Background ’’ , second full paragraph of the column, line 1, the language ‘‘ The IRS and the Treasury Department ’’ is corrected to read ‘‘ The Service and the Treasury Department ’’

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3. On page 9188, in the preamble, column 3, under the paragraph heading

‘‘ Explanation of Provisions and Summary of Comments ’’ , second full paragraph of the column, line 12, the language ‘‘ taxpayer; and because the IRS was ’’ is corrected to read ‘‘ taxpayer, and because the Service was ’’

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4. On page 9188, in the preamble, column 3, under the paragraph heading

‘‘ Explanation of Provisions and Summary of Comments ’’ , lines 1 through 6, the language ‘‘ After considering these comments, the IRS and the Treasury Department have concluded that they provide no basis for adopting changes in the final regulations. In particular, the argument that the IRS should not be able to decide ’’ is corrected to read ‘‘ After considering these comments, the Service and the Treasury Department have concluded that they provide no basis for adopting changes in the final regulations. In particular, the argument that the Service should not be able to decide ’’

. LaNita Van Dyke, Chief, Publications and Regulations Branch, Legal Processing Division, Associate Chief Counsel (Procedure and Administration). [FR Doc. E8

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**– 01** 
**– P**  **ENVIRONMENTAL PROTECTION AGENCY**  **40 CFR Part 52 [EPA** 

**– R09** 

**– OAR** 

**– 2007** 
**– 1074, FRL** 

**– 8537** 
**– 9]**  **Partial Removal of Direct Final Rule Revising the California State**  **Implementation Plan, Monterey Bay Unified Air Pollution Control District**  **and San Joaquin Valley Air Pollution Control District** 
**AGENCY :**  Environmental Protection Agency (EPA). **ACTION :**  Partial removal of direct final rule.
**SUMMARY :**  On January 2, 2008 (73 FR 48), EPA published a direct final approval of revisions to the California State Implementation Plan (SIP). These revisions concerned local rules that address circumvention, reduction of animal matter, and volatile organic compound (VOC) emissions from gasoline bulk storage tanks, gasoline filling stations, petroleum refinery equipment, and petroleum solvent dry cleaning. The direct final action was published without prior proposal because EPA anticipated no adverse comment. The direct final rule stated that if adverse comments were received by February 1, 2008, EPA would publish a timely removal in the Federal Register . EPA received a timely adverse comment. Consequently, with this revision we are removing the direct final approval of SJVAPCD Rules 4104, 4402, 4404, 4453, 4454, 4625, 4641, and 4672. EPA will either address the comments in a subsequent final action based on the parallel proposal also published on January 2, 2008 (73 FR 48) or repropose an alternative action. As stated in the parallel proposal, EPA will not institute a second comment period on a subsequent final action. The other rules, MBUAPCD Rules 415, 418, and 1002, approved in the January 2, 2008 direct final action, are not affected by this removal and are incorporated into the SIP as of the original effective date of March 3, 2008. **DATES :**  The addition of 40 CFR 52.220(c)(351)(i)(C) published at 73 FR 48 on (January 2, 2008) is removed effective March 13, 2008. **ADDRESSES :**  EPA has established docket number EPA

–R09

– OAR

– 2007

– 1074 for this action. The index to the docket is available electronically at http:// www.regulations.gov and in hard copy at EPA Region IX, 75 Hawthorne Street, San Francisco, CA. While all documents in the docket are listed in the index, some information may be publicly


### 13441 Federal Register / Vol. 73, No. 50 / Thursday, March 13, 2008 / Rules and Regulations available only at the hard copy location (e.g., copyrighted material), and some may not be publicly available in either location (e.g., CBI). To inspect the hard copy materials, please schedule an appointment during normal business hours with the contact listed in the **FOR FURTHER INFORMATION CONTACT**  section. **FOR FURTHER INFORMATION CONTACT :**  Alfred Petersen, Rules Office (AIR

– 4), U.S. Environmental Protection Agency, Region IX, (415) 947

– 4118, petersen.alfred@epa.gov. List of Subjects in 40 CFR Part 52

Environmental protection, Air pollution control, Incorporation by reference, Intergovernmental relations, Ozone, Reporting and recordkeeping requirements, Volatile organic compounds.

Dated: February 13, 2008. Wayne Nastri, Regional Administrator, Region IX. ■ Part 52, chapter 1, title 40 of the Code of Federal Regulations is amended as follows: **PART 52**

**— [AMENDED]** 
■ 1. The authority citation for part 52 continues to read as follows:

Authority: 42 U.S.C. 7401 et seq. **Subpart F**

**— California**  **§ 52.220 [Amended]**  ■ 2. Section 52.220 is amended by removing paragraph (c)(351)(i)(C). [FR Doc. E8

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**ENVIRONMENTAL PROTECTION AGENCY**  **40 CFR Part 86 [EPA** 

**– HQ** 

**– OAR** 

**– 2004** 
**– 0072; FRL** 

**– 8539** 
**– 3]**  **RIN 2060**

**– A** 

**– 069**  **In-Use Testing for Heavy-Duty Diesel Engines and Vehicles; Emission**  **Measurement Accuracy Margins for Portable Emission Measurement**  **Systems and Program Revisions AGENCY**  **:** Environmental Protection Agency (EPA). **ACTION :**  Direct final rule.
**SUMMARY :**  In a rule published on June 14, 2005, EPA established a manufacturer-run, in-use testing program for heavy-duty diesel vehicles. The program requires engine manufacturers to measure exhaust emissions from their diesel engines using portable emissions measurement systems during real-world operation. At the time the rule was promulgated, EPA established interim emission measurement ‘‘ accuracy ’’ margins for the requisite portable emission measurement devices pending the development of final accuracy margins through a comprehensive research program. This Direct Final Rule adopts the resulting final accuracy margins for gaseous pollutants. Also, this rule makes several changes to the program in the early years of in-use testing. First, we are eliminating the first calendar year, i.e., 2006, of the two-year pilot program for particulate emissions (PM) in response to engine manufacturers ’ concerns, which primarily relate to the availability and efficacy of the requisite portable measurement systems (PEMS) for that pollutant. Second, due to a delay in developing the final accuracy margin for PM under the aforementioned comprehensive research program, we are delaying the first year of the fully enforceable PM test program from the 2008 calendar year to the 2009 calendar year. During the 2008 calendar year, there will be another year of pilot program testing for that pollutant. Third, and finally, we are extending the normal period for reporting in-use test results during the initial years of the program and allowing certain short-term changes in how vehicles are recruited and tested. These revisions are primarily intended to address delays in initiating the gaseous emission and PM pilot programs, manufacuturers ’ concerns regarding the schedule for initial purchases of PM measurement systems, and manufacturers ’ concerns regarding potential difficulties of initially instrumenting vehicles with these units. **DATES :**  This is effective on May 12, 2008 without further notice, unless EPA receives adverse comment by April 14, 2008. If EPA receives adverse comment, we will publish a timely withdrawal of the Direct Final Rule in the Federal Register informing the public that the rule will not take effect. **ADDRESSES :**  Submit your comments, identified by Docket ID No. EPA

–HQ

– OAR

– 2004

– 0072, by one of the following methods:

• www.regulations.gov: Follow the on-line instructions for submitting comments.

• E-mail: a-and-r-docket@epa.gov

. • Fax: (202) 566

– 9744.
• Mail: Environmental Protection Agency, Mail Code: 2822T, 1200 Pennsylvania Ave., NW., Washington, DC 20460. Please include two copies.

• Hand Delivery: U.S. Environmental Protection Agency, EPA Headquarters Library, EPA West Building, Room: 3334, 1301 Constitution Avenue, NW., Washington, DC. Such deliveries are only accepted during the Docket ’ s normal hours of operation, and special arrangements should be made for deliveries of boxed information.

Instructions: Direct your comments to Docket ID No. EPA

–HQ

– OAR

– 2004

– 0072. EPA ’ s policy is that all comments received will be included in the public docket without change and may be made available online at www.regulations.gov, including any personal information provided, unless the comment includes information claimed to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise protected through www.regulations.gov or e-mail. The www.regulations.gov Web site is an ‘‘ anonymous access ’’ system, which means EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an e-mail comment directly to EPA without going through www.regulations.gov your email address will be automatically captured and included as part of the comment that is placed in the public docket and made available on the Internet. If you submit an electronic comment, EPA recommends that you include your name and other contact information in the body of your comment and with any disk or CD

–ROM you submit. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, EPA may not be able to consider your comment. Electronic files should avoid the use of special characters, any form of encryption, and be free of any defects or viruses. For additional information about EPA ’ s public docket visit the EPA Docket Center homepage at http:// www.epa.gov/oar/dockets.html

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Docket: All documents in the docket are listed in the www.regulations.gov index. Although listed in the index, some information is not publicly available, e.g., CBI 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 EPA Docket Center, EPA West Building, EPA Headquarters Library, Room 3334, 1301 Constitution Avenue, NW., Washington, DC. The Public Reading Room is open from 8:30 a.m. to 4:30 p.m., Monday through Friday, excluding legal holidays. The telephone