Risk Matrix Page 1 Risk Probability Risk Severity Catastrophic A Critical B Moderate C Minor D Negligible E 5 – Frequent 5A 5B 5C 5D 5E 4 – 4ALikely 4B 4C 4D 4E 3 - 3AOccasional 3B 3C 3D 3E 2 – Seldom 2A 2B 2C 2D 2E 1 – Improbable 1A 1B 1C 1D 1E Assessment Risk Index Criteria Accountable Organizations 5A, 5B, 5C, 4A, 4B, 3A Unacceptable ...