This document discusses accident reporting, investigation, and analysis. It defines different types of incidents from near misses to severe accidents and outlines appropriate response and investigation based on incident level. Level 1 incidents involve minor injuries or damage while level 3 are most severe, involving fatalities, serious injuries, major damage or production loss. The appropriate personnel to investigate and responsibilities for remedial actions increase according to incident level. The goal is to learn from incidents to prevent recurrences and improve safety.