April 8, 2010 – Federal Register Recent Federal Regulation Documents

This action proposes to revise Class E airspace at Galena, AK. The amendment of three Standard Instrument Approach Procedures (SIAPs), and the development of one Obstacle Departure Procedure (ODP) at the Edward G. Pitka Sr. Airport have made this action necessary to enhance safety and management of Instrument Flight Rules (IFR) operations.

The Media Bureau adopts changes in the digital audio broadcasting (DAB) rules to permit FM radio stations to voluntarily increase FM hybrid digital effective radiated power (ERP), and implements interference mitigation and remediation procedures to resolve promptly allegations of digital interference to authorized full-service FM analog stations resulting from an FM digital ERP increase undertaken pursuant to the procedures adopted. The increase in FM hybrid digital ERP will allow an FM station's digital coverage area to more closely replicate its licensed analog coverage area, and the interference mitigation and remediation procedures will make certain that permissible increases in FM digital ERP do not adversely affect existing FM analog operations. These rule changes balance the immediate need for improved FM digital coverage with the continued need to limit interference from digital FM facilities to FM analog stations.

EPA is proposing to approve revisions to the Wisconsin State Implementation Plan (SIP) submitted on September 11, 2009. EPA revised its particulate matter standards in October 2006 by strengthening the 24-hour fine particulate standard and revoking the annual standard for course particulate. Wisconsin updated its state rule for ambient air quality standards to match the current Federal standards for particulate matter.

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: Following five reported cases of balance washer screw failure on similar ADGs [air-driven generators]/ram air turbines installed on other aircraft types, investigation by Hamilton Sundstrand determined that a specific batch of the screws had a metallographic non-conformity that increased their susceptibility to brittle fracture. Failure of a balance washer screw can result in loss of the related balance washer, with consequent turbine imbalance. Such imbalance could potentially result in ADG structural failure (including blade failure), loss of ADG electrical power and structural damage to the aircraft and, if deployment was activated by a dual engine shutdown, could also result in loss of hydraulic power for the flight controls [and consequent reduced ability of the flightcrew to maintain the safe flight and landing of the airplane].

We propose to adopt a new airworthiness directive (AD) for certain Model 767 airplanes. This proposed AD would require doing a detailed inspection for correct main track downstop assembly, thread protrusion, and damaged and missing parts of the main track downstop assemblies of the outboard slats, and related investigative and corrective actions if necessary. This proposed AD would also require doing a detailed inspection for foreign objects debris and damage to the wall of the track housing of the outboard slats, and corrective actions if necessary. This proposed AD results from reports of broken bolts in the outboard slat main track downstop assembly. We are proposing this AD to detect and correct incorrectly installed main track downstop assemblies, which can allow the main track downstop hardware to fall into the track housing and cause a puncture in the track housing when the slat is retracted. This condition, if not corrected, could result in a fuel leak and an increased risk of fire.

The FAA proposes to supersede an existing airworthiness directive (AD) that applies to all Model 750 airplanes. The existing AD currently requires inspecting the inboard-hinge brackets of the left and right elevators for cracking and doing related investigative and corrective actions if necessary. For certain airplanes, this proposed AD would require inspecting for cracks and corrosion of the bracket of the inboard horizontal stabilizer and measuring the lug thickness of the horizontal stabilizer hinges; doing corrective actions if necessary; modifying the left and right elevators and left and right horizontal stabilizer. For all airplanes, this proposed AD would require replacing the existing elevator assemblies with new elevator assemblies, which would terminate the requirements of the existing AD. This proposed AD would also revise the applicability to remove certain airplanes. This proposed AD results from a report of cracking and corrosion found on the elevator inboard-hinge brackets and the horizontal stabilizer hinges. We are issuing this AD to prevent such cracking and corrosion of the elevator inboard-hinge brackets and the horizontal stabilizer hinges, which could result in structural failure of the elevators and consequent loss of control of the airplane.

This document contains final regulations relating to travel expenses of state legislators while away from home. The regulations affect eligible state legislators who make the election under section 162(h) of the Internal Revenue Code (Code). The regulations clarify the amount of travel expenses that a state legislator may deduct under section 162(h).

EPA is approving a revision to the Delaware State Implementation Plan (SIP) to meet the reasonable further progress (RFP) requirements of the Clean Air Act (CAA) for the Delaware portion of the Philadelphia 1997 8-hour ozone moderate nonattainment area. EPA is also approving the RFP plan's motor vehicle emissions budgets (MVEBs), the 2002 base year emissions inventory, contingency measures, and the reasonably available control measure (RACM) analysis associated with this revision. EPA is approving the SIP revision because it satisfies the requirements for the 1997 8-hour ozone national ambient air quality standard (NAAQS) nonattainment areas classified as moderate and demonstrates further progress in reducing ozone precursors. EPA is approving the SIP revision pursuant the CAA and EPA's regulations.

EPA is proposing to approve this State Implementation Plan (SIP) revision submitted by the New Mexico Environmental Department

This action amends Class E airspace in the Dallas-Fort Worth, TX area. Additional controlled airspace is necessary to accommodate new Area Navigation (RNAV) Standard Instrument Approach Procedures (SIAP) at Bridgeport Municipal Airport, Bridgeport, TX. The FAA is taking this action to enhance the safety and management of Instrument Flight Rule (IFR) operations at Bridgeport Municipal Airport.

The Department of Veterans (VA) is amending its regulation concerning evaluation of studies relating to the health effects of exposure to herbicides containing dioxin and radiation to remove the obsolete references to herbicides containing dioxin. This final rule reflects changes made by the Agent Orange Act of 1991 in the procedures for VA's evaluation of the health effects of exposure to herbicides containing dioxin. This document makes non-substantive changes for the purpose of removing obsolete regulatory provisions.

DoD is proposing to amend the Defense Federal Acquisition

DoD is adopting as final, without change, an interim rule that requires the Milestone Decision Authority (MDA) for a major defense acquisition program (MDAP) to select the contract type for a development program that is consistent with the level of program risk in accordance with section 818 of the National Defense Authorization Act (NDAA) for Fiscal Year 2007.