Rist Assessment Matrix (RAM)
| Severity | Consequences | Increasing Likelihood | |||||||
| People | Assets | Environment | Reputation | A | B | C | D | E | |
| Never heard of before in the Industry | Heard of in the Industry | Happened in the Company, or more than once per year in the Industry | Happened at the Location or more than once per year in the Company | Happened more than once per year at the Location | |||||
| 0 | No Injury or health effect | No damage | No effect | No impact | 0A | 0B | 0C | 0D | OE |
| 1 | Slight injury or health effect | Slight damage | Slight effect | Slight impact | 1A | 1B | 1C | 1D | 1E |
| 2 | Minor injury or health effect | Minor damage | Minor effect | Minor impact | 2A | 2B | 2C | 2D | 2E |
| 3 | Major injury or health impact | Moderate damage | Moderate effect | Moderate impact | 3A | 3B | 3C | 3D | 3E |
| 4 | PTD or up to 3 fatalities | Major damage | Major effect | Major impact | 4A | 4B | 4C | 4D | 4E |
| 5 | More than 3 fatalities | Massive damage | Massive effect | Massive impact | 5A | 5B | 5C | 5D | 5E |