2024 12 USC 1701z-15 – Approval of individual residential water purification or treatment units

2023 12 USC 1701z-15 – Approval of individual residential water purification or treatment units

2022 12 USC 1701z-15 – Approval of individual residential water purification or treatment units

2021 12 USC 1701z-15 – Approval of individual residential water purification or treatment units

2020 12 USC 1701z-15 – Approval of individual residential water purification or treatment units

2018 12 USC 1701z-15 – Approval of individual residential water purification or treatment units

2017 12 USC 1701z–15 – Approval of individual residential water purification or treatment units

2015 12 USC 1701z–15 – Approval of individual residential water purification or treatment units

2014 12 USC 1701z-15 – Approval of individual residential water purification or treatment units

2013 12 USC 1701z-15 – Approval of individual residential water purification or treatment units

2012 12 USC 1701z-15 – Approval of individual residential water purification or treatment units

2010 12 USC 1701z-15 – Approval of individual residential water purification or treatment units