2024 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research

2023 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research

2022 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research

2021 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research

2020 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research

2018 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research

2017 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research

2015 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research

2014 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research

2013 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research

2012 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research

2010 33 USC 883d – Improvement of methods, instruments, and equipments; investigations and research