Investigator of many accidents, for short (4 letters)

{ Answer }

NTSB

{ Related Clues }

Accident investigator, for short
Crash-investigating org.
Crash-probing agcy.
Fed. accident investigator
Wreck checker: Abbr.
Wreck-checking org.
Pipeline accident investigator: Abbr.

{ Tags }

abbr, accident, accidents, agcy, checker, checking, crash, fed, investigating, investigator, many, ntsb, org, pipeline, probing, short, wreck

{ Notes }

The answer NTSB is rarely seen, appearing only about once every 1200 puzzles.