2024 U.S. Code > Title 42 > Chapter 109 – Water Resources Research

2023 U.S. Code > Title 42 > Chapter 109 – Water Resources Research

2022 U.S. Code > Title 42 > Chapter 109 – Water Resources Research

2021 U.S. Code > Title 42 > Chapter 109 – Water Resources Research

2020 U.S. Code > Title 42 > Chapter 109 – Water Resources Research

2018 U.S. Code > Title 42 > Chapter 109 – Water Resources Research

2017 U.S. Code > Title 42 > Chapter 109 – Water Resources Research

2015 U.S. Code > Title 42 > Chapter 109 – Water Resources Research

2014 U.S. Code > Title 42 > Chapter 109 – Water Resources Research

2013 U.S. Code > Title 42 > Chapter 109 – Water Resources Research

2012 U.S. Code > Title 42 > Chapter 109 – Water Resources Research

2010 U.S. Code > Title 42 > Chapter 109 – Water Resources Research