The site navigation utilizes arrow, enter, escape, and space bar key commands. Left and right arrows move across top level links and expand / close menus in sub levels. Up and Down arrows will open main level menus and toggle through sub tier links. Enter and space open menus and escape closes them as well. Tab will move on to the next part of the site rather than go through menu items.
The National Transportation Safety Board (NTSB) was established in 1967 and became totally independent on April 1, 1975, by the Independent Safety Board Act of 1974 (49 U.S.C. 1111).
The National Transportation Safety Board seeks to ensure that all types of transportation in the United States are conducted safely. The Board investigates accidents, conducts studies, and makes recommendations to Government agencies, the transportation industry, and others on safety measures and practices.