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This report documents progress made on all LDRD-funded projects during fiscal year 2010.

For more than a decade, renewable energy certificates (RECs) have grown in use, becoming a common way to track ownership of the renewable and environmental attributes of renewable electricity generation. In recent years, however, questions have risen about the role RECs play in the decision to build new renewable energy projects. Information from a variety of market participants suggests that the importance of RECs in building new projects varies depending on a number of factors, including electricity market prices, the cost-competitiveness of the project, the presence or absence of public policies supportive of new projects, contract duration, and the perspective of different market participants. While there is no single answer to the role that RECs play, there are situations in which REC revenues are essential to project economics, as well as some where REC revenues may have little impact. To strengthen the role RECs play in both compliance and voluntary markets, there are a number of options that could be considered. In compliance markets, lawmakers or regulators would have to adopt measures that strengthen the role of RECs in the development of new projects, while in voluntary markets, it would be up to program leaders and market participants themselves to …

This report examines the legislation and oversight by Congress to protect the United States against terrorist threats, especially from chemical, biological, radiological, and nuclear (CBRN) weapons. Radiological dispersal devices (RDDs) are one type of CBRN weapon. Explosive-driven "dirty bombs" are an often-discussed type of RDD, though radioactive material can also be dispersed in other ways. This report also provides background for understanding the RDD threat and responses.

This report raises several issues for Congress, Including: (I) the priority for countering RDDs vs other CBRN, (II) how to improve radio logical forensics capability, (III) whether to modify certain personnel reliability standards etc.

Report presenting the research papers written by students participating in the 2010 Undergraduate Transportation Scholars Program. The papers are titled "Estimation of Carriers/Truckers Value of Time Due to Congestion," "Evaluation of Retroreflectivity Measurement Techniques for Profiled and Rumble Stripe Pavement Markings," "Analysis of Retroreflectivity and Color Degradation in Sign Sheeting," "Evaluating the Effectiveness of LED Enhanced Stop Paddles for School Crossing Guard Use," "Incorporating Freight Value into the Urban Mobility Report," "Calibration of Pavement Performance Prediction Models," and "Evaluating the Effects of Concrete Curing Compounds on Hydration."

From preface: This is a working document and individual stock assessment reports will be updated as new information on marine mammal stocks and fisheries become available...These Stock Assessment Reports summarize information from a wide range of original data sources and an extensive bibliography of all sources is given in each report.