Statistical and probabilistic methods for estimating the probability that a fracture is nonconductive (or equivalently, the conductive-fracture frequency) and the distribution of the transmissivities of conductive fractures from transmissivity measurements made in single-hole injection (well) tests were developed. These methods were applied to a database consisting of over 1,000 measurements made in nearly 25 km of borehole at five sites in Sweden. The depths of the measurements ranged from near the surface to over 600-m deep, and packer spacings of 20- and 25-m were used. A probabilistic model that describes the distribution of a series of transmissivity measurements was derived. When the parameters of this model were estimated using maximum likelihood estimators, the resulting estimated distributions generally fit the cumulative histograms of the transmissivity measurements very well. Further, estimates of the mean transmissivity of conductive fractures based on the maximum likelihood estimates of the model's parameters were reasonable, both in magnitude and in trend, with respect to depth. The estimates of the conductive fracture probability were generated in the range of 0.5--5.0 percent, with the higher values at shallow depths and with increasingly smaller values as depth increased. An estimation procedure based on the probabilistic model and the maximum likelihood …

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This report provides background information and potential issues for Congress on the Littoral Combat Ship (LCS), a relatively inexpensive Navy surface combatant equipped with modular "plug-and-fight" mission packages for countering mines, small boats, and diesel-electric submarines, particularly in littoral (i.e., near-shore) waters.

This report explains which authorities within the Leadership and Lantos-Hyde Acts are set to expire and which are permanent. The report in the Appendix A offers a side-by-side comparison of the Leadership Act in its original form and the Lantos-Hyde Act, which amends the Leadership Act and other legislation.

This report describes how the International Monetary Fund (IMF) and World Trade Organization (WTO) deal with the issue of currency manipulation. It also discusses apparent discrepancies in their charters and ways those differences might be addressed.

This report discusses the causes of funding gaps and shutdowns of the federal government, processes that are associated with shutdowns, and how agency operations may be affected by shutdowns. The report concludes with a discussion of potential issues for Congress.

A letter report issued by the Government Accountability Office with an abstract that begins "The Task Force agencies use the Action Plan to implement the Great Lakes Restoration Initiative (GLRI) and use an interagency process to enter into agreements among themselves to identify GLRI projects and with other stakeholders to implement GLRI projects. The Action Plan includes guidance for implementing the GLRI in five focus areas (such as invasive species and habitat and wildlife protection and restoration) that encompass the most significant environmental problems in the Great Lakes. Each focus area includes, among other things, long-term goals, objectives to be achieved by fiscal year 2014, and 28 measures of progress that have annual targets for fiscal years 2010 to 2014."

A letter report issued by the Government Accountability Office with an abstract that begins "Since 2002, DOD obligated at least $166.6 billion on contracts supporting reconstruction and stabilization efforts in Iraq and Afghanistan. Many of these contingency contracts, in particular those awarded in Iraq, need to be closed. Contract closeout is a key step to ensure the government receives the goods and services it purchased at the agreed upon price and, if done timely, provides opportunities to use unspent funds for other needs and reduces exposure to other financial risks. To assess DOD's efforts to close its Iraq contracts, GAO examined the (1) number of contracts that are eligible for closeout and the extent to which they will be closed within required time frames, (2) factors contributing to contracts not being closed within required time frames, (3) steps DOD took to manage the financial risks associated with not closing contracts within required time frames, and (4) extent to which DOD captured and implemented lessons learned from closing its Iraq contracts. GAO reviewed contingency contracting guidance, analyzed contract and closeout data for contracts awarded between fiscal years 2003 and 2010, and interviewed DOD officials from six organizations responsible for awarding or …

A letter report issued by the Government Accountability Office with an abstract that begins "Over the last decade, Congress has passed legislation requiring the Department of Defense (DOD) to conduct human capital planning efforts for the department's civilian workforce. Specifically, section 115b of Title 10 of the United States Code, enacted in October 2009, requires DOD to develop and submit to congressional defense committees a strategic workforce plan to shape and improve the department's civilian workforce. Among other things, the law requires DOD to report on the mission-critical skills, competencies, and gaps in its existing and future civilian workforces; the appropriate mix of military, civilian, and contractor personnel capabilities; and the department's progress in implementing its strategic workforce plan using results-oriented performance measures. While DOD has addressed some of its reporting requirements to some extent, it has not addressed others."

A letter report issued by the Government Accountability Office with an abstract that begins "In 2005, Hurricanes Katrina and Rita caused unprecedented damage. The Federal Emergency Management Agency's (FEMA's) Individuals and Households Program (IHP), provides direct assistance (temporary housing units) and financial assistance (grant funding for temporary housing and other disaster-related needs) to eligible individuals affected by disasters. Our objectives were to (1) compare the types and amounts of IHP assistance provided to Hurricanes Katrina and Rita victims to other recent hurricanes, (2) describe the challenges FEMA faced by the magnitude of the requests for assistance following Hurricanes Katrina and Rita, and (3) determine the vulnerability of the IHP program to fraud and abuse. GAO determined the extent to which the program was vulnerability to fraud and abuse, by conducting statistical sampling, data mining and undercover operations."

A letter report issued by the Government Accountability Office with an abstract that begins "Postsecondary education plays an important role in producing a skilled workforce able to compete in the global economy. Some stakeholders have suggested that collecting information on graduates' employment outcomes--whether they are employed in their field of study, for example--will provide better information to help assess the impact of a postsecondary education. The Higher Education Opportunity Act directed GAO to study the information that states have on the employment outcomes of postsecondary graduates. This report describes (1) the extent and purposes for which states collect employment-related information and the challenges they faced in doing so, (2) potential approaches to expanding states' collection efforts across states and nationwide, and (3) how selected states and schools collaborate with employers to align education and workforce needs. To address these objectives, GAO reviewed relevant research and interviewed officials from the U.S. Departments of Education (Education) and Labor, as well as postsecondary institutions, state agencies, and employers in seven states and two countries selected based on their data collection capabilities."

A letter report issued by the Government Accountability Office with an abstract that begins "Civilian agencies did not fully comply with statutory requirements for compiling fiscal year 2011 service contract inventories. For example, because the information is not currently readily available, the Office of Management and Budget (OMB) directed the 49 agencies that were required to submit inventories to defer the collection of three statutorily required data elements for each contract--the role the services played in achieving agency objectives, the total dollar amount invoiced for services under the contracts, and the number and work locations of contractor and subcontractor personnel. Progress, however, is being made to collect this information for future inventories. OMB directed agencies to start collecting information on the role services play in achieving agency objectives for new contracts awarded on or after March 1, 2012. A proposed Federal Acquisition Regulation rule was published in April 2011 to start collecting the remaining two data elements directly from contractors. We also found several instances where agencies significantly underreported obligations in their inventories, either because they misinterpreted or did not follow OMB guidance. For example, the General Services Administration underreported obligations by approximately $6.4 billion. Without complete and accurate service …

A letter report issued by the Government Accountability Office with an abstract that begins "The Nuclear Regulatory Commission (NRC) is responsible for overseeing the nation's 103 commercial nuclear power plants to ensure they are operated safely. The safety of these plants has always been important, since an accident could release harmful radioactive material. NRC's oversight has become even more critical as the potential resurgence of nuclear power is considered. NRC implemented a new Reactor Oversight Process (ROP) in 2000 to address weaknesses in its oversight of nuclear plant safety. In this report, GAO reviewed (1) how NRC oversees nuclear power plants, (2) the results of the ROP over the past several years, and (3) the status of NRC's efforts to improve the ROP. To complete this work, GAO analyzed programwide information, inspection results covering 5 years of ROP operations, and detailed findings from a nonprobability sample of 11 plants."

A letter report issued by the Government Accountability Office with an abstract that begins "Opportunities exist for the Department of Homeland Security (DHS) to enhance its visibility over collaborative field mechanisms (i.e., multiagency groups such as task forces, committees, and teams that enhance stakeholder collaboration to more effectively and efficiently achieve their missions) established by component agencies. DHS, at the departmental level, has limited visibility over the universe and operation of these mechanisms and does not identify information from them that could further enhance collaboration across DHS and inform future DHS decisions. In the absence of a single DHS regional/field structure, DHS components have created collaborative mechanisms to better integrate field operations by better coordinating their missions and sharing information. However, when GAO sought to identify these mechanisms, in conjunction with DHS, senior DHS officials stated that while they maintain regular visibility over component activities--which may involve these collaborative mechanisms--DHS does not collect information on the types of mechanisms and collaborative practices these mechanisms employ because the mechanisms operate under the components, and thus this information was not readily available at the departmental level. DHS officials stated that primary oversight over the mechanisms is the responsibility of the operational components …

A letter report issued by the Government Accountability Office with an abstract that begins "Goods imported into the United States under trade preference programs, which extend unilateral tariff reductions to over 130 developing countries to assist their economies, totaled approximately $92 billion in 2006. The United States offers four primary trade preference programs--the Generalized System of Preferences (GSP), the Caribbean Basin Initiative (CBI), the Andean Trade Preference Act (ATPA), and the African Growth and Opportunity Act (AGOA). Some economists and others have raised concerns about the programs; for example, because the beneficiaries may lose interest in reciprocal multilateral or bilateral trade liberalization. In addition, the global trade context in which the programs operate is changing. Most U.S. trade preference programs will need to be renewed over the next several years. As a result, Congress needs to reexamine the programs and explore options for improvement. To provide information for such a reexamination, at your request we (1) identified and compared key features of U.S. preference programs, (2) analyzed use of U.S. preference programs by beneficiaries, and (3) examined U.S. agency administrative reviews of preference programs."

A letter report issued by the Government Accountability Office with an abstract that begins "On September 7, 2011, the Department of Homeland Security (DHS) issued a final rule establishing a transitional work permit program in the Commonwealth of the Northern Mariana Islands (CNMI) for foreign workers not otherwise admissible under federal law. The final rule addressed key requirements of the Consolidated Natural Resources Act of 2008 (CNRA); for example, the rule sets the permit allocations for fiscal years 2011 and 2012. As of July 2012, DHS had processed about half of the petitions for work permits that employers submitted in fiscal year 2012. The DHS decision on its permit allocation for fiscal year 2013 and a Department of Labor (DOL) decision on whether and when to extend the transition period, both required by CNRA, are both pending."

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Homeland Security (DHS) has some of the most extensive acquisition needs within the federal government. In fiscal year 2005, DHS spent $17.5 billion on contracted purchases, $6.5 billion, or 37 percent, of which was through the use of other agencies' contracts and contracting services, a process known as interagency contracting. While these types of contracts offer the benefits of efficiency and convenience, in January 2005, GAO noted shortcomings and designated the management of interagency contracting as a governmentwide high-risk area. Given the department's critical national security mission and the results of our earlier work, GAO reviewed the extent to which DHS manages the risks of interagency contracting and assessed DHS' guidance, planning, and oversight of interagency contracting."

A letter report issued by the Government Accountability Office with an abstract that begins "In February 2003 reports, GAO identified actions needed to better prepare critical financial market participants for wide-scale disasters, such as terrorist attacks. To determine progress made since then, GAO assessed (1) actions that critical securities market organizations took to improve their ability to prevent and recover from disruptions, (2) actions that financial market and telecommunications industry participants took to improve telecommunications resiliency, (3) financial regulators' efforts to ensure the resiliency of the financial markets; and (4) SEC's efforts to improve its program for overseeing operations risks at certain market participants."

A letter report issued by the Government Accountability Office with an abstract that begins "In 2003, the United States and other countries began implementing the Kimberley Process Certification Scheme (KPCS) to curtail the trade of rough diamonds that had fueled severe conflicts in Africa, known as conflict diamonds. CDTA provides the statutory framework for U.S. implementation of the KPCS. As mandated in CDTA, this report (1) describes the institutional framework established to implement the act, (2) examines implementation of the domestic provisions of the act and challenges it faces, and (3) examines how the United States has helped to strengthen the KPCS and challenges it faces."

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Homeland Security (DHS) and the U.S. Department of Agriculture (USDA) have taken steps to implement all seven of the recommendations GAO made in 2006 to improve the Agriculture Quarantine Inspection (AQI) program, but they face challenges in fully implementing four of them. Specifically, DHS and USDA have implemented GAO's recommendations to improve information sharing, review DHS's financial management system for the AQI program, and remove barriers to timely and accurate transfers of AQI user fees--collected for AQI services provided in connection with the arrival of international air passengers and conveyances at U.S. ports. However, DHS and USDA face challenges in fully implementing GAO's recommendations to adopt meaningful performance measures, establish a national risk-based staffing model, improve the agriculture canine program, and revise user fees to cover program costs. For example, in 2006, GAO recommended that DHS and USDA adopt meaningful performance measures for assessing the AQI program's effectiveness at intercepting foreign pests and disease. DHS and USDA have expanded the use of one type of performance measure but have not developed measures for all aspects of the AQI program that are important for …

A letter report issued by the Government Accountability Office with an abstract that begins "GAO's past work and the work of others has shown that challenges processing voter registration applications and maintaining voter registration lists can result in individuals arriving at polls on Election Day to find they were not listed as registered. GAO surveyed local election officials in 14 jurisdictions in 7 states (AZ, CA, MI, NY, TX, VA, and WI) to obtain their views on managing voter registration for the 2004 election. GAO selected the 7 states considering characteristics relevant to voter registration, such as whether a statewide voter registration list existed prior to the enactment of the Help America Vote Act (HAVA) of 2002. Locations were selected within each state to represent one small and one large election jurisdiction. This report discusses election officials' characterization of (1) challenges receiving voter registration applications, including checking them for completeness; (2) removing voters' names from voter registration lists and ensuring that names were not inadvertently removed; and (3) implementing HAVA's provisional voting and identification requirements. HAVA, in part, requires that states offer provisional ballots to voters not listed as registered who declare eligibility and first-time voters who registered by mail …

A letter report issued by the General Accounting Office with an abstract that begins "Medication errors and adverse drug reactions are a significant concern for the Department of Veterans Affairs (VA) and the Department of Defense (DOD) because their large beneficiary populations receive many prescriptions. Each agency has taken steps to reduce the risk of medication errors, such as making patients' medical records more accessible to providers and performing checks for drug interactions. Although each agency has designed safeguards to protect its own patients, some VA and DOD patients receive medication from both agencies. Shared patients face a higher risk of medication error. Joint (DOD and VA) venture sites with inpatient facilities provide services to shared inpatients in the same manner as they do for their own beneficiaries; that is, medications are ordered using the facility's guidelines and filled through the inpatient pharmacy at that facility. Gaps in safeguards result primarily from VA's and DOD's separate, uncoordinated information and formulary systems. Joint venture sites have tried to address some of these safety gaps. For instance, all sites have made patient information more accessible by providing additional, although incomplete, access to the other agency's patient information system."

A letter report issued by the General Accounting Office with an abstract that begins "In 2001, almost 40 percent of all 16- and 17-year-olds in the United States and many 14- and 15-year-olds worked at some time in the year. Children in the United States are often encouraged to work, and many people believe that children benefit from early work experiences by developing independence, confidence, and responsibility. However, the public also wants to ensure that the work experiences of young people enhance, rather than harm, their future opportunities. The number and characteristics of working children have changed little over the past decade. According to Bureau of Labor Statistics data, as in 1990, as many as 3.7 million children aged 15 to 17 worked in 2001. The number of children who die each year from work-related injuries has changed little since 1992, but the number of children who incurred nonfatal injuries while working is more difficult to determine because data from different sources provide different estimates of the number of injuries and trends over time. The Department of Labor devotes many resources to ensuring compliance with the child labor provisions of the Fair Labor Standards Act, including conducting nationwide campaigns designed …

A letter report issued by the General Accounting Office with an abstract that begins "Over the past decade, there has been a technological revolution in the workplace as businesses have increasingly turned to computer technology the primary tool to communicate, conduct research, and store information. Also during this time, concern has grown among private sector employers that their computer resources may be abused by employees--either by accessing offensive material or jeopardizing the security of proprietary information--and may provide an easy entry point into a company's electronic systems by computer trespassers. As a result, companies have developed "computer conduct" policies and implement strategies to monitor their employees' use of e-mail, the Internet, and computer files. Federal and state laws and judicial decisions have generally given private sector companies wide discretion in their monitoring and review of employee computer transmissions. However, some legal experts believe that these laws should be more protective of employee privacy by limiting what aspects of employee computer use employers may monitor and how they may do so. Following the September 11, 2001, terrorist attacks on the United States, policymakers re-examined many privacy issues as they debated the USA PATRIOT Act, which expands the federal government's authority to …