2024 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority

2023 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority

2022 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority

2021 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority

2020 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority

2018 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority

2017 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority

2015 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority

2014 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority

2013 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority

2012 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority

2010 U.S. Code > Title 42 > Chapter 6A > Subchapter XXI > Part B – Research Authority