2024 19 CFR 171.51 – Application and definitions

2023 19 CFR 171.51 – Application and definitions

2022 19 CFR 171.51 – Application and definitions

2021 19 CFR 171.51 – Application and definitions

2020 19 CFR 171.51 – Application and definitions

2019 19 CFR 171.51 – Application and definitions

2016 19 CFR 171.51 – Application and definitions

2015 19 CFR 171.51 – Application and definitions

2014 19 CFR 171.51 – Application and definitions

2010 19 CFR 171.51 – Application and definitions

2009 19 CFR 171.51 – Application and definitions.