| Change Environmental Effects | Projects, Activities and Actions | Proposed Mitigation/Compensation Measures | Follow-up or Monitoring |
| Direction | Duration | Reversibility | Prediction Confidence |
| P Positive A Adverse | ST Short-term MT Medium-term LT Long-term P Permanent | R Reversible I Irreversible | Confidence in the significance prediction, based on scientific information and statistical analysis, identified technical boundaries, professional judgment and known effectiveness of mitigation: L Low level of confidence M Moderate level of confidence H High level of confidence. |
| Magnitude | Frequency | Ecological/Socioeconomic Context | Likelihood |
| L Low M Moderate H High | O Occurs once. S Occurs sporadically at irregular Intervals R Occurs on a regular basis and at regular intervals C Continuous | U Undisturbed: Area relatively or not adversely affected by human activity D Developed: Area has been substantially previously disturbed by human development or still present N/A Not Applicable | If a significant environmental effect is predicted, the likelihood of that significant environmental effect occurring is determined, based on professional judgment: L Low probability of occurrence. M Medium probability of occurrence H High probability of occurrence |
| Geographic Extent |
| Significance | Other Projects, Activities, or Actions |
| S Site-specific L Local R Regional |
| S Significant N Not Significant | List of specific projects or activities that would contribute to the cumulative environmental effects. |