October 17, 2011 – Federal Register Recent Federal Regulation Documents

We are adopting a new airworthiness directive (AD) for Pratt & Whitney Canada PT6A-15AG, -27, -28, -34, -34AG, -34B, and -36 series turboprop engines. This emergency AD was sent previously to all known U.S. owners and operators of these engines. This AD requires the removal of affected part manufacturer approval (PMA) replacement Timken Alcor Aerospace Technologies, Inc. (TAATI) first stage reduction sun gears and the interacting planet gears, from the propeller reduction gearbox assembly. This AD was prompted by failures of certain PMA replacement first stage reduction sun gears, manufactured by TAATI. We are issuing this AD to correct the unsafe condition on these products.

This action amends the time of designation for restricted areas R-5314A, B, C, D, E, F, H, and J in Dare County, NC, by removing the specific published times on Saturday and Sunday. This change reflects current utilization of the restricted areas and provides increased public access to the area on weekends.

We are announcing receipt of a proposed amendment to the Montana regulatory program (hereinafter, the ``Montana program'') under the Surface Mining Control and Reclamation Act of 1977 (``SMCRA'' or ``the Act''). Montana proposes changes to the Montana Strip and Underground Mine Reclamation Act (MSUMRA) that pertain to coal prospecting. Montana intends to revise its program to comply with changes made in the 2011 Montana Legislature as a result of the passage of Senate Bill 286. This document gives the times and locations that the Montana program and proposed amendment to that program are available for your inspection, the comment period during which you may submit written comments on the amendment, and the procedures that we will follow for the public hearing, if one is requested.

The EPA is proposing to revise the agency's definition of volatile organic compounds (VOCs) for purposes of preparing state implementation plans (SIPs) to attain the national ambient air quality standards (NAAQS) for ozone under Title I of the Clean Air Act (CAA). This proposed revision would add 2,3,3,3-tetrafluoropropene (also known as HFO-1234yf) and trans-1,3,3,3-tetrafluoropropene (also known as HFO- 1234ze) to the list of compounds excluded from the definition of VOC on the basis that these compounds make a negligible contribution to tropospheric ozone formation.

The EPA is proposing to correct an erroneous reference in EPA's procedures for handling data collected under the Mandatory Greenhouse Gas Reporting Rule, which are provided in the Special Rules Governing Certain Information Obtained under the Clean Air Act. The proposed correction would not change any requirements for entities regulated under the Mandatory Greenhouse Gas Reporting Rule or the final confidentiality determinations EPA has made for such data. In the ``Rules and Regulations'' section of this Federal Register, we are making this correction as a direct final rule without a prior proposed rule. If we receive no adverse comment, we will not take further action on this proposed rule.

EPA is proposing to take action on portions of State Implementation Plan (SIP) revisions submitted by the State of Oklahoma to address Clean Air Act requirements that prohibit air emissions which will contribute significantly to nonattainment in, or interfere with maintenance by, any other State for the 1997 8-hour ozone National Ambient Air Quality Standards (NAAQS or standards), the 1997 fine particulate matter (PM2.5) NAAQS and the 2006 24-hour PM2.5 NAAQS. EPA is basing these proposed actions on the final determinations concluded within the Cross State Air Pollution Rule (CSAPR or Transport Rule) and proposed determination within the Supplemental Notice of Proposed Rulemaking (SNPR). EPA is proposing to disapprove, or in the alternative, approve the portion of the submittal demonstrating Oklahoma does not interfere with maintenance of the ozone NAAQS in other states. EPA intends to finalize approval or disapproval based on its final determination for the SNPR regarding Oklahoma for the ozone NAAQS. EPA is also proposing to approve the portion of the submittal demonstrating Oklahoma does not contribute significantly to nonattainment of the ozone NAAQS in other states. Finally, EPA is proposing to approve the portions of the submittals addressing Oklahoma's impacts for the PM2.5 NAAQS in other states. This action is being taken under section 110 of the CAA.

This action proposes to modify Class E airspace at Show Low Regional Airport, Show Low, AZ. Controlled airspace is necessary to accommodate aircraft using Area Navigation (RNAV) Global Positioning System (GPS) standard instrument approach procedures at Show Low Regional Airport. The FAA is proposing this action to enhance the safety and management of Instrument Flight Rules (IFR) operations at the airport.

The U.S. Consumer Product Safety Commission (``Commission'' or ``we'') has received a petition (PP 11-1) requesting that the Commission initiate rulemaking to require special packaging for torch fuel and lamp oil to make it impossible to see the product when it is in the container. We are announcing a reopening of the comment period for 30 days.

EPA is approving a State Implementation Plan (SIP) revision submitted by the State of Maryland. This SIP revision includes amendments to the Code of Maryland (COMAR) 26.11.19.07, Volatile Organic Compounds from Specific Processes, Paper, Fabric, Film and Foil Coating, and adds new COMAR 26.11.19.07-2, Plastic Parts and Business Machines Coating. Maryland's SIP revision meets the requirement to adopt Reasonably Available Control Technology (RACT) for sources covered by EPA's Control Techniques Guidelines (CTG) standards for plastic parts and business machines coatings and will help Maryland attain and maintain the National Ambient Air Quality Standard (NAAQS) for ozone. EPA is approving this revision concerning the adoption of the CTG requirements for plastic parts and business machines coatings in accordance with the requirements of the Clean Air Act (CAA).

The Coast Guard has changed the drawbridge operation regulations that govern the operation of the Padanaram Bridge across the Apponagansett River, mile 1.0, at Dartmouth, Massachusetts. The owner of the bridge requested relief from crewing the bridge in the early morning hours when there have been no requests to open the bridge. It is expected that this change to the regulations would provide relief to the bridge owner while continuing to meet the reasonable needs of navigation.

The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. That AD applies to the products listed above. The effective date in paragraph (a) of the Amended section of the AD is incorrect. This document corrects that error. In all other respects, the original document remains the same.

This establishes, amends, suspends, or revokes Standard Instrument Approach Procedures (SIAPs) and associated Takeoff Minimums and Obstacle Departure Procedures for operations at certain airports. These regulatory actions are needed because of the adoption of new or revised criteria, or because of changes occurring in the National Airspace System, such as the commissioning of new navigational facilities, adding new obstacles, or changing air traffic requirements. These changes are designed to provide safe and efficient use of the navigable airspace and to promote safe flight operations under instrument flight rules at the affected airports.

EPA is announcing that it is lifting the Administrative Stay of the Emergency Planning and Community Right-to-Know Act (EPCRA) section 313 toxic chemical release reporting requirements for hydrogen sulfide (Chemical Abstracts Service Number (CAS No.) 7783-06-4). Hydrogen sulfide was added to the EPCRA section 313 list of toxic chemicals in a final rule published in the Federal Register on December 1, 1993. However, on August 22, 1994, EPA issued an Administrative Stay of the reporting requirements for hydrogen sulfide in order to evaluate issues brought to the Agency's attention after promulgation of the final rule concerning the human health effect basis for the listing and the Agency's use of exposure analysis in EPCRA section 313 listing decisions. Although the final rule listing hydrogen sulfide under section 313 of EPCRA remained in force, the stay deferred the reporting requirements for hydrogen sulfide while EPA completed this further evaluation. EPA completed its further evaluation of additional information that has become available since the stay was put in place regarding the human health and environmental effects of hydrogen sulfide, and the Agency published a position that the stay should be lifted in the February 26, 2010, Federal Register document ``Intent to Consider Lifting Administrative Stay; Opportunity for Public Comment.'' Based on EPA's further evaluation and the consideration of the public comments received on the notice of intent, EPA continues to believe that the Administrative Stay should be lifted. By this current action, EPA is not revisiting the original listing decision, which was accomplished by final rule on December 1, 1993. Rather, EPA is lifting the Administrative Stay of the reporting requirements for hydrogen sulfide.