A letter report issued by the Government Accountability Office with an abstract that begins "As Congress considers reauthorization of the laws which provide funding for the Child Care and Development Fund (CCDF), there is interest in understanding what accounts for recent trends in child care subsidy receipt among eligible families and what research says about subsidies' effects on parents' ability to obtain and maintain employment. The U.S. Department of Health and Human Services (HHS) administers CCDF, but states have flexibility in its implementation. As requested, GAO examined: (1) trends in federal estimates of the number and proportion of eligible children and families who receive child care subsidies, (2) factors that may affect trends in estimates of the number of children served, and (3) what is known about the extent to which access to subsidies supports low-income parents' employment. To address these issues, GAO reviewed recent federal estimates of the number and proportion of eligible children and families served; conducted a survey of state child care administrators in 50 states and the District of Columbia; interviewed HHS officials, state officials in four selected states, and researchers and experts in child care subsidies; and reviewed research on the relationship between subsidy receipt …

A letter report issued by the Government Accountability Office with an abstract that begins "The United States Postal Service (USPS) has the world's largest civilian fleet, with many of its delivery vehicles reaching the end of their expected 24-year operational lives. USPS is subject to legislative requirements governing the federal fleet, including a requirement in the Energy Policy Act of 1992, which provides that 75 percent of USPS's vehicle acquisitions be alternative fuel vehicles, capable of operating on a fuel other than gasoline. USPS is also facing serious cost pressures in maintaining a national network of processing and retail operations. Asked to review USPS's delivery fleet, GAO (1) profiled the fleet; (2) assessed USPS's response to alternative fuel vehicle requirements and described its experiences with these vehicles; (3) identified USPS's approach for addressing its delivery fleet needs, including trade-offs; and (4) determined options to fund a major acquisition of delivery vehicles. GAO analyzed USPS data; visited USPS facilities in three locations; and interviewed officials from USPS, the Department of Energy, and other organizations, including fleet operators and manufacturers."

A letter report issued by the Government Accountability Office with an abstract that begins "The Visa Waiver Program (VWP) allows eligible nationals from 36 member countries to travel to the United States for tourism or business for 90 days or less without a visa. In 2007, Congress required the Secretary of Homeland Security, in consultation with the Secretary of State, to implement an automated electronic travel authorization system to determine, prior to travel, applicants' eligibility to travel to the United States under the VWP. Congress also required all VWP member countries to enter into an agreement with the United States to share information on whether citizens and nationals of that country traveling to the United States represent a security threat. In 2002, Congress mandated that the Department of Homeland Security (DHS) review, at least every 2 years, the security risks posed by each VWP country's participation in the program. In this report, GAO evaluates (1) DHS's implementation of an electronic system for travel authorization; (2) U.S. agencies' progress in negotiating informationsharing agreements; and (3) DHS's timeliness in issuing biennial reports. GAO reviewed relevant documents and interviewed U.S., foreign government, and travel industry officials in six VWP countries."

A letter report issued by the Government Accountability Office with an abstract that begins "The technology component of the Department of Homeland Security's (DHS) Secure Border Initiative (SBI), referred to as SBInet, is to put observing systems along our nation's borders and provide Border Patrol command centers with the imagery and related tools and information needed in deciding whether to deploy agents. SBInet is being acquired and deployed in incremental blocks of capability, with the first block to cost about $1.3 billion. Because of the program's importance, size, and challenges, GAO was asked to, among other things, determine the extent to which DHS has (1) defined the scope of its proposed SBInet solution, (2) developed a reliable schedule for this solution, (3) demonstrated the cost-effectiveness of this solution, and (4) acquired the solution using key management processes. To do this, GAO compared key program documentation to relevant guidance and industry practices."

This report discusses the challenges in the transportation of oil, as refineries that once received crude oil principally from oceangoing tankers are now seeing increasing deliveries by domestic transport. It also outlines possible issues for Congress including rail transport of oil versus pipelines, and the possible increase of oil spills from rail transport.

This report discusses the recent conflict in Syria including an overview of the situation, information about anti- and pro-Asad forces, background on chemical weapons and disarmament, plans for U.S. policy and assistance, and a general sense of the future outlook.

This report describes the individual mandate as established under the Affordable Care Act (ACA, P.L. 111-148, as amended). The report also discusses the ACA reporting requirements designed, in part, to assist individuals in providing evidence of having met the mandate.

This report provides an overview of the rationale for the Prompt Global Strike (PGS) mission and the possible deployment of conventional warheads on long-range ballistic missiles or boost-glide systems. It also reviews the Air Force and Navy efforts to develop these systems and summarizes congressional reaction to these proposals, then provides a more detailed account of the issues raised by these concepts and programs.

This report discusses the relations between United Kingdom (UK) and the United States, including a sense of shared history, values, and culture, as well as extensive and long-established cooperation on a wide range of foreign policy and security issues.

This report discusses United States commitments for climate change through financial and technical assistance and multilateral programs.

To address the challenges facing the U.S. intelligence community in the 21st century, congressional and executive branch initiatives have sought to improve coordination among the different agencies and to encourage better analysis. In December 2004, the Intelligence Reform and Terrorism Prevention Act (P.L. 108-458) was signed, providing for a Director of National Intelligence (DNI) with substantial authorities to manage the national intelligence effort. The legislation also established a separate Director of the Central Intelligence Agency.

This report discusses issues and questions related to the killing of Osama bin Laden (OBL), which are multifaceted and may have operational, regional, and policy implications. Operational policy issues include congressional notification, legal considerations, and current and future military activities.

Recent Congresses and the Obama Administration have taken numerous actions to promote "insourcing," or the use of government personnel to perform functions that contractors previously performed on behalf of federal agencies. Among other things, the 109th through the 111th Congresses enacted several statutes requiring the development of policies and guidelines to ensure that agencies "consider" using government employees to perform functions previously performed by contractors, as well as any new function.

This report provides the following elements: An overview of the SFA rationale focused primarily on Department of Defense support for and relations with foreign security forces. Description of the possible employment of U.S. conventional forces and platforms in support of the SFA mission. Exploration of current operations in Afghanistan and Iraq. Resident training capability in U.S. forces as a tool for geographic combatant commanders. Issues Congress may consider. The report summarizes congressional reaction to SFA proposals and provides a detailed account of the issues raised by SFA concepts and programs.

This report discusses the current political state of Afghanistan, as well as the Afghan government. This report also discusses Afghanistan's relationship with the United States, particularly U.S. efforts to urge President Hamid Karzai, to address corruption within the Afghan government. The report also includes discussion of election fraud and corruption in Afghanistan.

This report discusses the domestic and international efforts to increase foreign assistance to address climate change. Proponents maintain that such assistance could help promote low-emissions and high-growth economic development in lower-income countries, while simultaneously protecting the more vulnerable countries from the effects of a changing climate. The fundamental dispute concerning international financing for climate change centers upon who should pay for it and how.

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In atmospheric modeling, global spectral methods have dominated weather and climate simulation for the past two decades. However, global methods based upon the spherical harmonic basis functions require expensive non-local communication and thus have difficulty in exploiting the full potential of current high-performance parallel computers. The primary objective of HOMME ((11)) is the development of a class of high-order scalable conservative atmospheric models for climate and general atmospheric modeling applications. The spatial discretizations are based on continuous Galerkin (spectral element method) and discontinuous Galerkin (DG). These are local methods based on high-order accurate spectral basis functions which have been shown to perform well on massively parallel supercomputers at any resolution (18). HOMME employs a cubed-sphere geometry (26) exhibiting none of the singularities present in conventional latitude-longitude spherical geometries. The element based formulation enables the use of general curvilinear geometries and adaptive conforming or non-conforming meshes.

The Savannah River Remediation (SRR) Organization requested that Savannah River National Laboratory (SRNL) develop a Computational Fluid Dynamics (CFD) method to mix and blend the miscible contents of the blend tanks to ensure the contents are properly blended before they are transferred from the blend tank; such as, Tank 50H, to the Salt Waste Processing Facility (SWPF) feed tank. The work described here consists of two modeling areas. They are the mixing modeling analysis during miscible liquid blending operation, and the flow pattern analysis during transfer operation of the blended liquid. The transient CFD governing equations consisting of three momentum equations, one mass balance, two turbulence transport equations for kinetic energy and dissipation rate, and one species transport were solved by an iterative technique until the species concentrations of tank fluid were in equilibrium. The steady-state flow solutions for the entire tank fluid were used for flow pattern analysis, for velocity scaling analysis, and the initial conditions for transient blending calculations. A series of the modeling calculations were performed to estimate the blending times for various jet flow conditions, and to investigate the impact of the cooling coils on the blending time of the tank contents. The modeling results were …

This report is about an Alternative Enhanced Chemical Cleaning Basic Studies Results FY09

The purpose of this report is to document the acceptability of Sludge Batch 5 with the initial macrobatch operation of the Interim Salt Disposition Project (ISDP) waste to the Defense Waste Processing Facility (DWPF). This report was prepared to comply with the requirements listed in the Waste Acceptance Criteria for Sludge, Actinide Removal Process (ARP), and Modular Caustic Side Solvent Extraction Unit (MCU) Process Transfers to 512-S and DWPF. The requirements for transfers to 512-S were evaluated during ISDP Salt Batch 1 qualification. The calculations of sludge concentrations are based entirely on the Tank 51 sample processed at SRNL. This is conservative because Tank 51 is blended with the dilute feed in the DWPF Feed Tank (Tank 40). This report documents the acceptability of sludge only as well as Sludge Batch 5 sludge slurry combined with ARP/MCU products for feed to DWPF. All criteria were met for unblended Tank 51 material.

Due to the need to close waste storage tanks, chemical cleaning methods are needed for the effective removal of the heels. Oxalic acid is the preferred cleaning reagent for sludge heel dissolution, particularly for iron-based sludge, due to the strong complexing strength of the oxalate. However, the large quantity of oxalate added to the tank farm from oxalic acid based chemical cleaning has significant downstream impacts. Optimization of the oxalic acid cleaning process can potentially reduce the downstream impacts from chemical cleaning. To optimize oxalic acid usage, a detailed understanding of the chemistry of oxalic acid based sludge dissolution is required. Additionally, other acid systems may be required for specific waste components with low solubility in oxalic acid and as a means to reduce oxalic acid usage in general. Solubility tests were conducted using non-radioactive, pure metal phases known to be the primary phases present in High Level Waste sludge. The metal phases studied included the aluminum phases gibbsite and boehmite and the iron phases magnetite and hematite. Hematite and boehmite are expected to be the most difficult iron and aluminum phases to dissolve. These mineral phases have been identified in both SRS and Hanford High Level Waste sludge. Acids …