2024 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5-Chloro-2-(2,4-dichloro-phenoxy)phenol

2023 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5-Chloro-2-(2,4-dichloro-phenoxy)phenol

2022 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5-Chloro-2-(2,4-dichloro-phenoxy)phenol

2021 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5-Chloro-2-(2,4-dichloro-phenoxy)phenol

2020 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5-Chloro-2-(2,4-dichloro-phenoxy)phenol

2018 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5-Chloro-2-(2,4-dichloro-phenoxy)phenol

2017 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5-Chloro-2-(2,4-dichloro-phenoxy)phenol

2015 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5-Chloro-2-(2,4-dichloro-phenoxy)phenol

2014 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5-Chloro-2-(2,4-dichloro-phenoxy)phenol

2013 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5-Chloro-2-(2,4-dichloro-phenoxy)phenol

2012 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5-Chloro-2-(2,4-dichloro-phenoxy)phenol

2010 19 USC 3523 – Duty free treatment for octadecyl isocyanate and 5- Chloro-2-(2,4-dichloro-phenoxy)phenol