2024 54 USC 100504 – Study and planning of park, parkway, and recreational-area facilities

2023 54 USC 100504 – Study and planning of park, parkway, and recreational-area facilities

2022 54 USC 100504 – Study and planning of park, parkway, and recreational-area facilities

2021 54 USC 100504 – Study and planning of park, parkway, and recreational-area facilities

2020 54 USC 100504 – Study and planning of park, parkway, and recreational-area facilities

2018 54 USC 100504 – Study and planning of park, parkway, and recreational-area facilities

2017 54 USC 100504 – Study and planning of park, parkway, and recreational-area facilities

2015 54 USC 100504 – Study and planning of park, parkway, and recreational-area facilities

2014 54 USC 100504 – Study and planning of park, parkway, and recreational-area facilities