2024 49 USC 47136 – Zero-emission airport vehicles and infrastructure

2023 49 USC 47136 – Zero-emission airport vehicles and infrastructure

2022 49 USC 47136 – Zero-emission airport vehicles and infrastructure

2021 49 USC 47136 – Zero-emission airport vehicles and infrastructure

2020 49 USC 47136 – Zero-emission airport vehicles and infrastructure

2018 49 USC 47136 – Zero-emission airport vehicles and infrastructure

2017 49 USC 47136 – Inherently low-emission airport vehicle pilot program

2015 49 USC 47136 – Inherently low-emission airport vehicle pilot program

2014 49 USC 47136 – Inherently low-emission airport vehicle pilot program

2013 49 USC 47136 – Inherently low-emission airport vehicle pilot program

2012 49 USC 47136 – Inherently low-emission airport vehicle pilot program

2010 49 USC 47136 – Inherently low-emission airport vehicle pilot program