Versions of See prior versions of a law on LawServer 2024 50 USC 1842 – Pen registers and trap and trace devices for foreign intelligence and international terrorism investigations 2023 50 USC 1842 – Pen registers and trap and trace devices for foreign intelligence and international terrorism investigations 2022 50 USC 1842 – Pen registers and trap and trace devices for foreign intelligence and international terrorism investigations 2021 50 USC 1842 – Pen registers and trap and trace devices for foreign intelligence and international terrorism investigations 2020 50 USC 1842 – Pen registers and trap and trace devices for foreign intelligence and international terrorism investigations 2018 50 USC 1842 – Pen registers and trap and trace devices for foreign intelligence and international terrorism investigations 2017 50 USC 1842 – Pen registers and trap and trace devices for foreign intelligence and international terrorism investigations 2015 50 USC 1842 – Pen registers and trap and trace devices for foreign intelligence and international terrorism investigations 2014 50 USC 1842 – Pen registers and trap and trace devices for foreign intelligence and international terrorism investigations