2024 40 CFR 227.4 – Criteria for evaluating environmental impact

2023 40 CFR 227.4 – Criteria for evaluating environmental impact

2022 40 CFR 227.4 – Criteria for evaluating environmental impact

2021 40 CFR 227.4 – Criteria for evaluating environmental impact

2020 40 CFR 227.4 – Criteria for evaluating environmental impact

2019 40 CFR 227.4 – Criteria for evaluating environmental impact

2016 40 CFR 227.4 – Criteria for evaluating environmental impact

2015 40 CFR 227.4 – Criteria for evaluating environmental impact

2014 40 CFR 227.4 – Criteria for evaluating environmental impact

2010 40 CFR 227.4 – Criteria for evaluating environmental impact

2009 40 CFR 227.4 – Criteria for evaluating environmental impact