[2] In December 2020, Metro approved the Final EIR with the option to build the rail line in segments.

The Draft Environmental Impact Report was completed and released in September 2017,[11] and the final clearance was granted by the Federal Transit Administration in February 2021.

[13] In 2022, the Federal Transit Administration issued a Letter of Intent to provide $909 million to fund the project.

The underground section between Sherman Way and Roscoe stations was eliminated due to the high costs of tunneling.

The light rail train will run southeast for two and a half miles (4.0 km) on San Fernando Road to Van Nuys Boulevard.

[20] By 2023, Metro initiated a new study of the northern phase of the project to better plan for how to share the right of way with an expanded Antelope Valley Line.