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The U.S. Department of Energy (DOE) has prepared a total system performance assessment for a site recommendation (TSPA-SR), if suitable, on Yucca Mountain for disposal of radioactive waste. Discussed here is the Cladding Degradation Component of the Waste Form Degradation Model (WF Model), of the TSPA-SR. The Cladding Degradation Component determines the degradation rate of the Zircaloy cladding on commercial spent nuclear fuel (CSNF) and, thereby, the CSNF matrix exposed and radioisotopes available for dissolution in any water present. Since the 1950s, most CSNF has been clad with less than 1 mm (usually between 600 and 900 {micro}m) of Zircaloy, a zirconium alloy. Zircaloy cladding is not a designed engineered barrier of the Yucca Mountain disposal system, but rather is an existing characteristic of the CSNF that is important to determining the release rate of radioisotopes once the waste package (WP) has breached. Although studies of cladding degradation from fluoride [F] began at Lawrence Livermore National Laboratory as early as 1984, cladding as a characteristic of the waste was not considered in TSPAs, conducted in the early 1990s. However, enough information on cladding performance has accumulated in the literature such that cladding was considered in 1993 when examining the performance …

The objective of this report is to compare the benefits and costs of modifications proposed for intake gate closure systems at four hydroelectric stations on the Lower Snake and Upper Columbia Rivers in the Walla Walla District that are unable to meet the COE 10-minute closure rule due to the installation of fish screens. The primary benefit of the proposed modifications is to reduce the risk of damage to the station and environs when emergency intake gate closure is required. Consequently, this report presents the results and methodology of an extensive risk analysis performed to assess the reliability of powerhouse systems and the costs and timing of potential damages resulting from events requiring emergency intake gate closure. As part of this analysis, the level of protection provided by the nitrogen emergency closure system was also evaluated. The nitrogen system was the basis for the original recommendation to partially disable the intake gate systems. The risk analysis quantifies this protection level.

The objective of this report is to compare the benefits and costs of modifications proposed for intake gate closure systems at four hydroelectric stations on the Lower Snake and Upper Columbia Rivers in the Walla Walla District that are unable to meet the COE 10-minute closure rule due to the installation of fish screens. The primary benefit of the proposed modifications is to reduce the risk of damage to the station and environs when emergency intake gate closure is required. Consequently, this report presents the results and methodology of an extensive risk analysis performed to assess the reliability of powerhouse systems and the costs and timing of potential damages resulting from events requiring emergency intake gate closure. As part of this analysis, the level of protection provided by the nitrogen emergency closure system was also evaluated. The nitrogen system was the basis for the original recommendation to partially disable the intake gate systems. The risk analysis quantifies this protection level.

This report discusses the Democratic Republic of the Congo, formerly Zaire, which is a vast-resource-rich country of 48 million people. Events there affect much of sub-Saharan Africa. In August 1998, Congo was plunged into its second civil war in 2 years. A peace accord was concluded in Lusaka, Zambia, in July and August 1999, and the U.N. Security Council later agreed to send a 5,500-member observer force, MONUC, to assist in the peace process. Fewer than 250 observers have gone to Congo, due to the failure of the parties to the Lusaka accord to fully implement its terms. The assassination of President Laurent Kabila on January 16, 2001, has raised new doubts about the prospects for peace in Congo.

Over the past decade, worldwide production of illicit drugs has risen dramatically: opium and marijuana production has roughly doubled and coca production tripled. Street prices of cocaine and heroin have fallen significantly in the past 20 years, reflecting increased availability. Despite apparent national political resolve to deal with the drug problem, inherent contradictions regularly appear between U.S. anti-drug policy and other national policy goals and concerns. The mix of competing domestic and international pressures and priorities has produced an ongoing series of disputes within and between the legislative and executive branches concerning U.S. international drug policy. One contentious issue has been the Congressionally-mandated certification process, an instrument designed to induce specified drug-exporting countries to prioritize or pay more attention to the fight against narcotics businesses.

Correspondence issued by the General Accounting Office with an abstract that begins "The Food and Drug Administration (FDA) approves drugs for sale in the United States when it determines that the clinical benefits of a drug outweigh its potential health risks. To make this decision, FDA reviews supporting data collected from several thousand patients during the drug's development. Once a drug is approved for marketing and used by potentially thousands of patients, however, the type, rate, and severity of adverse events caused by the drug can be much different than those seen during the drug's development. In some cases, FDA or drug manufacturers have removed from the market drugs that have been shown to have unacceptable health risks once they were in widespread use. GAO found that 10 prescription drugs have been withdrawn from the U.S. market since January 1, 1997. Eight of the 10 prescription drugs posed greater health risks for women than for men: four of these may have led to more adverse events in women because they were prescribed more often to women than to men, while the other four had more adverse events in women even though they were widely prescribed to both men and women. …

Electronic signatures, a means of verifying the identity of the user of a computer system to control access or authorize a transaction, are increasingly being used in electronic commerce. Several technologies can be used to produce electronic signatures, the most prominent being digital signatures, which use cryptographic techniques to provide data integrity and nonrepudiation. Legislation enacted in the 106th Congress enables the legal recognition of electronic signatures in interstate commerce. Other legislation introduced but not enacted was intended to promote federal agency use of electronic signatures to enable electronic filing of information.

Other written product issued by the General Accounting Office with an abstract that begins "The Department of Education and GAO conducted a study of the feasibility of using alternative financial instruments for determining lender yields on student loans. Chapter one of the report provides an overview of federal student loan programs and their participants. Chapters two and three contain the analyses of the historical liquidity of the market for four types of financial instruments. Chapter four analyzes recent changes in the liquidity of the market for each financial instrument in a balanced federal budget and low interest rate environments, and projections of future liquidity assuming the federal budget remains in balance. Finally, Chapter five presents GAO's and Education's analyses of the remaining three issues enumerated in the Higher Education Act Amendments of 1998 and addresses the question of any possible risks or benefits to the student loan programs and to student borrowers."

Correspondence issued by the General Accounting Office with an abstract that begins "In response to concerns about the professionalism and conduct of some Department of Justice attorneys, as well as the process of holding them accountable to ethical standards, this report provides information on Justice's Office of Professional Responsibility (OPR). GAO obtained information on the types of allegations OPR was able to substantiate against attorneys, the source of the allegations, the specific allegations, and OPR's recommendations for disciplinary actions. OPR generally placed its findings in the attorneys' official personnel folder, either temporarily or permanently, depending on the severity of misconduct. OPR said that although some attorneys under investigation retired or resigned from the Department, it was unable to determine whether they left because of the investigation. Those attorneys would deny that their departure was triggered by the investigation, and OPR officials said it would be difficult to establish a cause-an-effect relationship. OPR would, however, continue the investigation if other Justice employees were involved or if the allegations were serious. When OPR administratively closed a case because the issues were before the courts, it flagged these cases in its tracking system so that it could continue its investigations at a later …

This report discusses the science of food biotechnology, and the federal structure by which it is regulated. Because U.S. farmers are adopting this technology at a rapid rate, some observers advocate a more active role for the federal government to ensure that farmers have equal access to this technology. Others believe that federal officials should play a more active role in protecting the environment, funding more research, and participating in international trade negotiations to ensure that trade continues to expand for genetically engineered crops. Trading partners often label food products that have been genetically modified as genetically modified organisms (GMOs). Many of those partners have labeling requirements for GMOs to allow consumers the “right to know” their food content.

A letter report issued by the General Accounting Office with an abstract that begins "In fiscal year 2000, the Department of Agriculture's Food Stamp Program, administered jointly by the Food and Nutrition Service (FNS) and the states, provided $15 billion in benefits to an average of 17.2 million low-income persons each month. FNS, which pays the full cost of food stamp benefits and half of the states' administrative costs, promulgates program regulations and oversees program implementation. The states run the program, determining whether households meet eligibility requirements, calculating monthly benefits the households should receive, and issuing benefits to participants. FNS assesses the accuracy of states' efforts to determine eligibility and benefits levels. Because of concerns about the integrity of Food Stamp Program payments, GAO examined the states' efforts to minimize food stamp payment errors and what FNS has done and could do to encourage and assist the states reduce such errors. GAO found that all 28 states it examined had taken steps to reduce payment errors. These steps included verifying the accuracy of benefit payments calculated through supervisory and other types of casefile reviews, providing specialized training for food stamp workers, analyzing quality control data to determine causes of errors …

Over the past year we have competed two studies of Os concentration and isotopic composition in rivers from the Himalayan uplift and in hydrothermal fluids from the Juan de Fuca Ridge. Both of these studies have been published. We have completed a study of paleo-climate in Soreq Cave, Israel, and have expanded our studies of the transport of U-Th through riverine and estuarine environments. We are completing two studies of weathering and transport in the vadose in two very different environments--one a tropical regime with a deep laterite profile and the other a northern arboreal forest with only a thin weathering zone. We have begun a new study of U-Th in aquifers with low water velocity.

The Monte Carlo code MCNP-DSP was developed from the Los Alamos MCNP4a code to calculate the time and frequency response statistics obtained from subcritical measurements. The code can be used to simulate a variety of subcritical measurements including source-driven noise analysis, Rossi-{alpha}, pulsed source, passive frequency analysis, multiplicity, and Feynman variance measurements. This code can be used to validate Monte Carlo methods and cross section data sets with subcritical measurements and replaces the use of point kinetics models for interpreting subcritical measurements.

The North American Free Trade Agreement (NAFTA), between the United States, Mexico, and Canada was the first trade agreement ever linked to worker rights provisions in a major way. Its companion "side agreement," the North American Agreement on Labor Cooperation (NAALC, which rhymes with "talc") went into effect with NAFTA on January 1, 1994. The NAALC agreement is "broad" in that NAFTA signatories agree to enforce their own labor laws and standards while promoting 11 worker rights principles over the long run. However, under NAALC, sanctions as an enforcement tool are applicable to only three of the 11 labor principles (pertaining to minimum wages, child labor, and occupational safety and health), and are not applicable to three basic rights: the right to organize, bargain collectively, and strike.

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How fast the economy can grow is of interest to Congress for at least three reasons. First, it directly affects the fiscal position of the government. Second, it influences the posture that should be taken by monetary policy, an oversight responsibility of Congress. Third, it influences the growth in the material well-being of Americans, a direct concern of Congress.

In past years, nuclear analysts had to rely on a limited amount of nuclear data for reactor design. In that time, the need for nuclear data was driven by the thermal and fast reactor programs. In a thermal reactor, the fissions of importance all take place below 4 eV. Because of this, evaluations for thermal applications emphasized this region. In a typical fast reactor, however, the most important fission range shifts upwards to the 10's to 100's of keV region, and this led to evaluations that emphasized this range. Nuclear criticality situations involve an energy spectrum that peaks in the 10's to 100's eV range, and need critical attention to the cross sections in this range. Since all of these systems produce fission neutrons at high energies-500 keV to a few MeV-attention has been given to this energy range. As noted, the region most neglected is the epithermal region; however, calculational experiences suggest many nuclides need improvements in all energy regions.

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The 1996 omnibus farm bill (P.L. 104-127) authorizes a peanut program for the 1996-2002 crops. The program supports the incomes of producers and aims to ensure that ample supplies of peanuts are produced for the U.S. market. To accomplish this, the U.S. Department of Agriculture (USDA) supports the farm price of peanuts primarily by limiting the amount of peanuts each eligible farm can sell for domestic food use ("quota" peanuts) at a specified "high" price level. Farmers are free to sell peanuts produced in excess of their quota ("additionals"), primarily for export and crushing into peanut oil and meal. Two levels of price support are available: a high level for "quota" peanuts, and a much lower rate for "additionals."

In May 1985, a National Pollutant Discharge Elimination System (NPDES) permit was issued for the Oak Ridge Y-12 National Security Complex (formerly the Oak Ridge Y-12 Plant). As a condition of the permit, a Biological Monitoring and Abatement Program (BMAP) was developed to demonstrate that the effluent limitations established for the Y-12 Complex protect the classified uses of the receiving stream (East Fork Poplar Creek; EFPC), in particular, the growth and propagation of aquatic life (Loar et al. 1989). A second objective of the BMAP is to document the ecological effects resulting from the implementation of a water pollution control program designed to eliminate direct discharges of wastewaters to EFPC and to minimize the inadvertent release of pollutants to the environment. Because of the complex nature of the discharges to EFPC and the temporal and spatial variability in the composition of the discharges, a comprehensive, integrated approach to biological monitoring was developed. A new permit was issued to the Y-12 Complex on April 28, 1995 and became effective on July 1, 1995. Biological monitoring continues to be required under the new permit. The BMAP consists of four major tasks that reflect different but complementary approaches to evaluating the effects of …

This report provides the results of detailed hydrologic characterization tests conducted within newly constructed Hanford Site wells during FY 1999. Detailed characterization tests performed during FY 1999 included: groundwater flow characterization, barometric response evaluation, slug tests, single-well tracer tests, constant-rate pumping tests, and in-well vertical flow tests. Hydraulic property estimates obtained from the detailed hydrologic tests include: transmissivity, hydraulic conductivity, specific yield, effective porosity, in-well lateral flow velocity, aquifer flow velocity, vertical distribution of hydraulic conductivity (within the well-screen section) and in-well vertical flow velocity. In addition, local groundwater flow characteristics (i.e., hydraulic gradient and flow direction) were determined for four sites where detailed well testing was performed.

This report provides the results of detailed hydrologic characterization tests conducted within newly constructed Hanford Site wells during FY 1999. Detailed characterization tests performed during FY 1999 included: groundwater flow characterization, barometric response evaluation, slug tests, single-well tracer tests, constant-rate pumping tests, and in-well vertical flow tests. Hydraulic property estimates obtained from the detailed hydrologic tests include: transmissivity, hydraulic conductivity, specific yield, effective porosity, in-well lateral flow velocity, aquifer flow velocity, vertical distribution of hydraulic conductivity (within the well-screen section) and in-well vertical flow velocity. In addition, local groundwater flow characteristics (i.e., hydraulic gradient and flow direction) were determined for four sites where detailed well testing was performed.

A letter report issued by the General Accounting Office with an abstract that begins "The federal government has an annual, governmentwide procurement goal of at least five percent for small disadvantaged businesses (SDB). SDBs are eligible for various price and evaluation benefits when being considered for federal contract awards. SDB firms must have their SDB status certified by the Small Business Administration (SBA). Because of concerns over reports that fewer businesses were receiving SDB certification than expected, GAO examined the SBA certification processes to (1) determine the number of businesses that SBA had certified as socially and economically disadvantaged since the implementation of the Small Disadvantaged Business Certification program and (2) obtain views on reasons for the current difference in the number of SDB certifications from the number that had previously self-certified as SDBs. SBA records show that 9,034 small business firms were certified as SDBs as of August 24, 2000. According to SDB officials, 6,405 of these were automatically certified because of their 8(a) certification. The number of SDBs that have been certified by SBA is significantly lower than the 30,000 projected by SBA based on the number of firms that had self-certified as SDBs. Possible reasons for this …