2024 40 CFR 1501.4 – Categorical exclusions

2023 40 CFR 1501.4 – Categorical exclusions

2022 40 CFR 1501.4 – Categorical exclusions

2021 40 CFR 1501.4 – Categorical exclusions

2020 40 CFR 1501.4 – Whether to prepare an environmental impact statement

2019 40 CFR 1501.4 – Whether to prepare an environmental impact statement

2016 40 CFR 1501.4 – Whether to prepare an environmental impact statement

2015 40 CFR 1501.4 – Whether to prepare an environmental impact statement

2014 40 CFR 1501.4 – Whether to prepare an environmental impact statement

2010 40 CFR 1501.4 – Whether to prepare an environmental impact statement

2009 40 CFR 1501.4 – Whether to prepare an environmental impact statement