2024 16 USC 460hh-4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area

2023 16 USC 460hh-4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area

2022 16 USC 460hh-4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area

2021 16 USC 460hh-4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area

2020 16 USC 460hh-4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area

2018 16 USC 460hh-4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area

2017 16 USC 460hh–4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area

2015 16 USC 460hh–4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area

2014 16 USC 460hh-4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area

2013 16 USC 460hh-4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area

2012 16 USC 460hh-4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area

2010 16 USC 460hh-4 – Platt National Park designation repealed; incorporation of areas into Chickasaw National Recreation Area