2024 49 USC 20136 – Automatic train control and related systems

2023 49 USC 20136 – Automatic train control and related systems

2022 49 USC 20136 – Automatic train control and related systems

2021 49 USC 20136 – Automatic train control and related systems

2020 49 USC 20136 – Automatic train control and related systems

2018 49 USC 20136 – Automatic train control and related systems

2017 49 USC 20136 – Automatic train control and related systems

2015 49 USC 20136 – Automatic train control and related systems

2014 49 USC 20136 – Automatic train control and related systems

2013 49 USC 20136 – Automatic train control and related systems

2012 49 USC 20136 – Automatic train control and related systems

2010 49 USC 20136 – Automatic train control and related systems