AZ SB1122

Establishes a new county transportation excise tax for counties with 3 million or more persons (Maricopa County), effective for 15 years if approved by voters, with revenues distributed 80% to freeways/state highways and 20% to major arterial streets and dial-a-ride services.

Requires Maricopa County to conduct a countywide election on November 5, 2024 on the transportation excise tax, with board of supervisors to mail an 8"x11" publicity pamphlet to all households with registered voters describing the tax rate, revenue projections, and regional transportation infrastructure plan.

Modifies regional transportation planning governance by reducing the transportation policy committee from 23 to 11 regional planning agency members, adding legislative appointees and taxpayer representatives, and requiring performance-based planning using factors from section 28-505.

Prohibits use of transportation excise tax revenues on commuter rail, light rail, streetcars or trollies, and requires contracts exceeding $50 million funded by the new excise tax to be submitted to the joint legislative budget committee for review.

Creates a new regional public transportation authority in counties with 3 million or more persons beginning January 1, 2026, and adds definitions including "intersection improvement" and "major arterial" to transportation statutes.