2024 42 USC 16294 – Research and development for coal mining technologies

2023 42 USC 16294 – Research and development for coal mining technologies

2022 42 USC 16294 – Research and development for coal mining technologies

2021 42 USC 16294 – Research and development for coal mining technologies

2020 42 USC 16294 – Research and development for coal mining technologies

2018 42 USC 16294 – Research and development for coal mining technologies

2017 42 USC 16294 – Research and development for coal mining technologies

2015 42 USC 16294 – Research and development for coal mining technologies

2014 42 USC 16294 – Research and development for coal mining technologies

2013 42 USC 16294 – Research and development for coal mining technologies

2012 42 USC 16294 – Research and development for coal mining technologies

2010 42 USC 16294 – Research and development for coal mining technologies