A letter report issued by the Government Accountability Office with an abstract that begins "According to experts, agency officials, and specialists, much is known about the use of chemical dispersants on the surface of the water, but gaps remain in several research areas. For example, experts generally agreed that there is a basic understanding of the processes that influence where and how oil travels through the water, but that more research was needed to quantify the actual rate at which dispersants biodegrade. In addition, all the experts GAO spoke with said that little is known about the application and effects of dispersants applied subsurface, noting that specific environmental conditions, such as higher pressures, may influence dispersants’ effectiveness. Knowledge about the use and effectiveness of dispersants in the Arctic is also limited, with less research conducted on dispersant use there than in temperate or tropical climates. For example, one expert noted that more research is needed on biodegradation rates for oil in the Arctic because the cold temperature may slow the process down."

A letter report issued by the Government Accountability Office with an abstract that begins "Historically, the Securities and Exchange Commission’s (SEC) oversight of the Financial Industry Regulatory Authority’s (FINRA) programs and operations varied, with some programs and operations receiving regular oversight and others receiving limited or no oversight. Through its inspection process, SEC conducted routine and special inspections of various aspects of FINRA regulatory programs, including examinations, surveillance, and enforcement programs. SEC has also conducted routine inspections of FINRA’s advertising and arbitration programs but not as frequently as it had planned. SEC has also regularly reviewed FINRA proposed rule changes that are subject to SEC approval to determine consistency with the Securities Exchange Act of 1934 and related rules and regulations. However, neither SEC nor FINRA conducts retrospective reviews of FINRA’s rules. GAO and others have reported on the usefulness of retrospective reviews as they allow agencies to assess the effectiveness of their rules, and some federal financial regulators, including SEC, have begun pursuing plans to conduct retrospective reviews of their rules in light of a recent executive order that encourages independent regulatory agencies to do so. By not conducting these reviews, FINRA may be missing an opportunity to systematically …