CFR›Title 28›Chapter I›Part 91›Subpart D›Subject Group Application to VOI/TIS Grant Program ContainsSections 91.54–91.57CorpusDaily eCFRDisplayed edition2026-09-01Last updated2026-09-01 Sections 91.54 § 91.54 Applicability. 91.55 § 91.55 Categorical exclusions. 91.56 § 91.56 Actions that normally require the preparation of an environmental assessment. 91.57 § 91.57 Actions that normally require the preparation of an environmental impact statement. Next Environmental Review Procedures Environmental Review Procedures