## Overview The National Transportation Safety Board (NTSB) is an independent federal agency established in 1967 to investigate major transportation accidents and promote safety improvements across all modes of U.S. transportation[1][2]. Its primary mission is to determine the probable cause of accidents—ranging from aviation and rail to highway, marine, pipeline, and hazardous materials incidents—and to issue safety recommendations aimed at preventing future occurrences[1][3][4]. The NTSB does not assign blame or determine liability; its focus is strictly on enhancing safety through evidence-based analysis[4]. ## History The NTSB was originally created within the U.S. Department of Transportation but was granted independent agency status in 1974, insulating it from political influence and allowing bipartisan appointments to its board[2]. This independence is a hallmark of the agency, ensuring that its investigations and recommendations remain objective and data-driven[2][4]. ## Key Achievements Over its nearly six decades, the NTSB has investigated thousands of high-profile accidents, including aviation disasters, train derailments, pipeline ruptures, and major highway crashes[1][2]. Its thorough accident reports and safety recommendations have led to significant advancements in transportation safety, such as improved aircraft design, enhanced rail signaling systems, stricter pipeline regulations, and better child safety seat standards[4]. The NTSB’s work has not only saved lives but also influenced industry practices and regulatory frameworks worldwide. ## Current Status Today, the NTSB is recognized as a global leader in accident investigation and transportation safety. It maintains a robust regional structure and employs experts in engineering, human performance, survival factors, and forensics to dissect complex accidents[3]. The agency also coordinates resources to assist victims and families affected by transportation disasters and serves as a court of appeals for certain certificate actions involving airmen and mariners[3]. Despite its small size relative to other federal agencies, the NTSB’s impact is outsized