Versions of 43 USC 31j - Biological research activity of Survey; review and report by National Academy of Sciences on LawServer 2024 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences 2023 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences 2022 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences 2021 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences 2020 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences 2018 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences 2017 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences 2015 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences 2014 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences 2013 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences 2012 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences 2010 43 USC 31j – Biological research activity of Survey; review and report by National Academy of Sciences