means any unintended event, including but not limited to, operating errors, equipment failures, initiating events, accident precursors, near misses, other mishaps, unauthorised acts or malicious acts, the safety significance of which exceeds the levels prescribed in the safety and related security standards contemplated in section 36;
[Definition inserted by section 1(q) of the National Nuclear Regulator Amendment Act, 26 of 2024, Notice No. 5723, GG51804, dated 20 December 2024 - effective 4 June 2025 per Proclamation Notice 266 of 4 June 2025]