2024 5 USC 5731 – Expenses limited to lowest first-class rate

2023 5 USC 5731 – Expenses limited to lowest first-class rate

2022 5 USC 5731 – Expenses limited to lowest first-class rate

2021 5 USC 5731 – Expenses limited to lowest first-class rate

2020 5 USC 5731 – Expenses limited to lowest first-class rate

2018 5 USC 5731 – Expenses limited to lowest first-class rate

2017 5 USC 5731 – Expenses limited to lowest first-class rate

2015 5 USC 5731 – Expenses limited to lowest first-class rate

2014 5 USC 5731 – Expenses limited to lowest first-class rate

2013 5 USC 5731 – Expenses limited to lowest first-class rate

2012 5 USC 5731 – Expenses limited to lowest first-class rate

2010 5 USC 5731 – Expenses limited to lowest first-class rate