49 U.S.C. § 1116: Reports, studies, and retrospective reviews

advocate meaningful responses to reduce the likelihood of transportation accidents similar to those investigated by the Board; and propose corrective action to make the transportation of individuals as safe and free from risk of injury as possible, including action to minimize personal injuries that occur in transportation accidents. carry out special studies and investigations about transportation safety, including avoiding personal injury; examine techniques and methods of accident investigation and periodically publish recommended procedures for accident investigations; may be investigated by the Board under this chapter; or involve public aircraft (except aircraft of the armed forces and the intelligence agencies); evaluate, examine the effectiveness of, and publish the findings of the Board about the transportation safety consciousness of other departments, agencies, and instrumentalities of the Government and their effectiveness in preventing accidents; and evaluate the adequacy of safeguards and procedures for the transportation of hazardous material and the performance of other departments, agencies, and instrumentalities of the Government responsible for the safe transportation of that material. a statistical and analytical summary of the transportation accident investigations conducted and reviewed by the Board during the prior calendar year; a survey and summary of the recommendations made by the Board to reduce the likelihood of recurrence of those accidents together with the observed response to each recommendation; any explanation the Board received from the Secretary or Commandant; and any explanation from the Board as to why the recommendation was closed in an unacceptable status, including a discussion of why alternate means, if any, taken by the Secretary or Commandant to address the Board’s recommendation were inadequate; a detailed appraisal of the accident investigation and accident prevention activities of other departments, agencies, and instrumentalities of the United States Government and State and local governmental authorities having responsibility for those activities under a law of the United States or a State; a description of the activities and operations of the National Transportation Safety Board Training Center during the prior calendar year; a list of accidents, during the prior calendar year, that the Board was required to investigate under section 1131 but did not investigate and an explanation of why they were not investigated; and a list of ongoing investigations that have exceeded the expected time allotted for completion by Board order and an explanation for the additional time required to complete each such investigation. Subject to paragraph (2), not later than June 1, 2019 , and at least every 5 years thereafter, the Chairman shall complete a retrospective review of recommendations issued by the Board that are classified as open by the Board. changed circumstances; more recently issued recommendations; the availability of new technologies; or new information making the recommendation ineffective or insufficient for achieving its objective; and a justification for each determination under subparagraph (A). the findings of the review under paragraph (1); each determination under paragraph (2)(A) and justification under paragraph (2)(B); and if applicable, a schedule for updating, closing, or reissuing a recommendation.