### 44725 Federal Register / Vol. 75, No. 145 / Thursday, July 29, 2010 / Proposed Rules

1 You may view the lists of select agents and toxins on the Internet at ( http:// www.regulations.gov/fdmspublic/component/ main?main=DocketDetail&d=APHIS-2009-0070). comments on the current list 1 of select agents and toxins and on any other significant pathogens so as to inform the working groups as they begin the biennial review process.

Reorganization of Current List of Select Agents and Toxins

We are also seeking public comment regarding potential reorganization of the list of select agents and toxins. Recent reports by the National Academies, the Executive Order 13486 Working Group, and the National Science Advisory Board for Biosecurity have recommended tiering the list of select agents and toxins based on the relative potential of each to be misused. If implemented, such tiering could allow for the application of different security measures for those select agents or toxins that pose a higher risk to animal or plant health if they were to be stolen or otherwise misused.

For those commenters who believe tiering the list of select agents and toxins is advisable, we also welcome recommendations as to what criteria should be used to designate high risk select agents and toxins. For example, potential tiering of the select agent and toxin list could reflect one or more of the following:

∑ The relative ease with which a particular select agent or toxin might be disseminated or transmitted from one animal to another or into the environment where it could produce a deleterious effect upon animal or plant health;

∑ The potential for high animal or plant mortality rates;

∑ The potential for a major animal or plant health impact;

∑ Select agents or toxins whose misuse might result in public panic or other social or economic disruption;

∑ Select agents or toxins whose use might require Federal, State, and/or local officials to take special action in planning for major animal or plant health disasters.

Additionally, we are interested in any potential corresponding changes to the security requirements of the current regulations that would be necessary to provide appropriate protection of higher tier select agents or toxins and whether such changes should be prescriptive or performance based.

At the conclusion of the working group review process, we will publish another document in the Federal Register either republishing the lists of select agents and toxins in 7 CFR 331.3, 9 CFR 121.3, and 9 CFR 121.4 or proposing changes to one or more of the lists. The document may also include reorganization of the lists of select agents and toxins via tiering of the select agents or toxins themselves and/ or tiered security requirements.

This action has been determined to be significant for the purposes of Executive Order 12866 and, therefore, has been reviewed by the Office of Management and Budget.

Authority: 7 U.S.C. 8401; 7 CFR 2.22, 2.80, 371.3, and 371.4.

Done in Washington, DC, this 22nd day of July 2010.

John Ferrell Deputy Under Secretary for Marketing and Regulatory Programs.
[FR Doc. 2010–18581 Filed 7–28–10; 8:45 am]

**BILLING CODE 3410–34–S**

**DEPARTMENT OF TRANSPORTATION**

**Federal Aviation Administration**

**14 CFR Part 39**

**[Docket No. FAA–2010–0725; Directorate Identifier 2010–NE–18–AD]** 

**RIN 2120–AA64**

**Airworthiness Directives; Pratt & Whitney PW4000 Series Turbofan**  **Engines; Correction**

**AGENCY :**  Federal Aviation Administration (FAA), DOT.

**ACTION :**  Notice of proposed rulemaking (NPRM); correction.

**SUMMARY :**  The FAA is correcting a proposed airworthiness directive (AD) which published in the Federal Register. That proposed AD would apply to Pratt & Whitney PW4000 series turbofan engines. The docket number is incorrect in all three of its locations. This document corrects those references. In all other respects, the original document remains the same.

**DATES :**  This correction is effective July 29, 2010.

**FOR FURTHER INFORMATION CONTACT :**  James Gray, Aerospace Engineer, Engine Certification Office, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; e-mail: james.e.gray@faa.gov; telephone (781) 238–7742; fax (781) 238–7199.

**SUPPLEMENTARY INFORMATION :**  On June 3, 2010 (75 FR 31330), we published a proposed AD, FR Doc. 2010–13314, in the Federal Register. That proposed AD applies to Pratt & Whitney PW4000 series turbofan engines. We need to make the following correction: On page 31330, in the third column, under 14 CFR part 39, ‘‘Docket No. FAA–2010–0384 ’’ is corrected to read

‘‘ FAA–2010–0725. ’’

On page 31331, in the first column, under **SUPPLEMENTARY INFORMATION** , in the sixth and seventh lines, ‘‘Docket No. FAA 2010–0384 ’’ is corrected to read

‘‘ FAA–2010–0725. ’’

On page 31331, in the third column, under § 39.13 [Amended], in the fourth and fifth lines, ‘‘Docket No. FAA
2010–0384 ’’ is corrected to read

‘‘ FAA–2010–0725. ’’

Issued in Burlington, Massachusetts, on July 23, 2010. Francis A. Favara, Manager, Engine and Propeller Directorate, Aircraft Certification Service.
[FR Doc. 2010–18628 Filed 7–28–10; 8:45 am]

**BILLING CODE 4910–13–P**

**DEPARTMENT OF TRANSPORTATION**

**Federal Aviation Administration**

**14 CFR Part 71**

**[Docket No. FAA–2010–0634; Airspace Docket No. 10–AWP–8]** 

**Proposed Establishment of Class E Airspace; Clifton/Morenci, AZ** 

**AGENCY :**  Federal Aviation Administration (FAA), DOT.

**ACTION :**  Notice of proposed rulemaking (NPRM).

**SUMMARY :**  This action proposes to establish Class E airspace at Greenlee County Airport, Clifton/Morenci, AZ. To accommodate aircraft using a new Area Navigation (RNAV) Global Positioning System (GPS) Standard Instrument Approach Procedure (SIAP) at Greenlee County Airport. The FAA is proposing this action to enhance the safety and management of aircraft operations at the airport.

**DATES :**  Comments must be received on or before September 13, 2010.

**ADDRESSES :**  Send comments on this proposal to the U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue, SE., Washington, DC 20590; telephone (202) 366–9826. You must identify FAA Docket No. FAA–2010–0634; Airspace Docket No. 10–AWP–8, at the beginning of your comments. You may also submit comments through the Internet at http://www.regulations.gov

. **FOR FURTHER INFORMATION CONTACT :**  Eldon Taylor, Federal Aviation Administration, Operations Support Group, Western Service Center, 1601