2024 40 CFR 152.93 – Citation of a previously submitted valid study

2023 40 CFR 152.93 – Citation of a previously submitted valid study

2022 40 CFR 152.93 – Citation of a previously submitted valid study

2021 40 CFR 152.93 – Citation of a previously submitted valid study

2020 40 CFR 152.93 – Citation of a previously submitted valid study

2019 40 CFR 152.93 – Citation of a previously submitted valid study

2016 40 CFR 152.93 – Citation of a previously submitted valid study

2015 40 CFR 152.93 – Citation of a previously submitted valid study

2014 40 CFR 152.93 – Citation of a previously submitted valid study

2010 40 CFR 152.93 – Citation of a previously submitted valid study

2009 40 CFR 152.93 – Citation of a previously submitted valid study