2024 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research and Investigations

2023 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research and Investigations

2022 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research and Investigations

2021 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research and Investigations

2020 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research and Investigations

2018 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research and Investigations

2017 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research and Investigations

2015 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research and Investigations

2014 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research and Investigations

2013 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research and Investigations

2012 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research and Investigations

2010 U.S. Code > Title 42 > Chapter 6A > Subchapter II > Part A – Research And Investigations