2024 31 USC 5121 – Refining, assaying, and valuation of bullion

2023 31 USC 5121 – Refining, assaying, and valuation of bullion

2022 31 USC 5121 – Refining, assaying, and valuation of bullion

2021 31 USC 5121 – Refining, assaying, and valuation of bullion

2020 31 USC 5121 – Refining, assaying, and valuation of bullion

2018 31 USC 5121 – Refining, assaying, and valuation of bullion

2017 31 USC 5121 – Refining, assaying, and valuation of bullion

2015 31 USC 5121 – Refining, assaying, and valuation of bullion

2014 31 USC 5121 – Refining, assaying, and valuation of bullion