The proposed bill would amend current statutes by introducing new requirements for the Arizona Department of Transportation (ADOT) regarding light rail expansion in Maricopa County. Specifically, it mandates that ADOT conduct a comprehensive feasibility review of light rail expansion by December 31, 2027, in collaboration with an independent transportation research entity. This review must not assume the superiority of any transit mode and should include various analyses such as cost comparisons, environmental impacts, ridership trends, and policy recommendations for future state involvement in light rail construction. The findings of this review are to be reported to key state officials and local leaders.

Additionally, the bill would prohibit state participation in any light rail construction projects, which includes actions such as appropriating state funds or issuing state bonds. The act is set to be repealed after June 30, 2028, and it defines terms related to light rail construction and state participation. Overall, the bill aims to ensure a thorough evaluation of light rail expansion while restricting state financial involvement in such projects.