(a) During the environmental review process, the following activities may occur:

1. (1) Consult with appropriate Tribal, Federal, state, local officials, and interested parties on potential environmental effects;
2. (2) Document assessment of reasonably foreseeable environmental effects;
3. (3) Perform necessary environmental surveys and inventories;
4. (4) Consult with the Advisory Council on Historic Preservation, acting through the SHPO or THPO, to ensure compliance with the NHPA;
5. (5) In applying a categorical exclusion under NEPA, evaluate whether extraordinary circumstances exist in which a normally excluded project may have a significant effect, and therefore require preparation of an environmental assessment or environmental impact statement;
6. (6) Identify methods to avoid or mitigate potential adverse effects; and
7. (7) Obtain environmental permits and approvals as required.