OC Go, also known as Measure M2 (M2), is a 30-year (2011-2041), half-cent sales tax initiative approved by Orange County voters in 2006. Established through Ordinance No. 3 (Ordinance), OC Go includes a Transportation Investment Plan (Plan) of improvements across the county, including freeway enhancements, street improvements, public transit investments, and environmental initiatives.

The OC Go program funds a range of transportation and environmental improvements across Orange County, including fixing potholes and resurfacing streets, synchronizing traffic signals, preserving and restoring habitats, expanding Metrolink rail and connections to communities, enhancing capacity and operations of freeways, cleaning water runoff from roadways, providing transit services at reduced rates for seniors and persons with disabilities, and more.

The M2 Ten-Year Review (Review) evaluates the performance of all projects and programs in the Plan. This Review ensures that the OC Go program continues to meet its goals and remains responsive to changing conditions, priorities, and external factors affecting transportation in Orange County. It takes into consideration changes in policies, regulations, land use, travel, and growth projections, and project cost estimates and revenue projections. It also considers right-of-way constraints and other project constraints, the level of public support for the Plan, and the progress of OCTA, the County, and its 34 cities in implementing the Plan.

Per the Ordinance, the Review is required at least every 10 years to assess the effectiveness of OC Go-funded projects and programs, ensure fiscal accountability, and determine if any adjustments are needed to maximize benefits for Orange County residents and commuters. Public and stakeholder engagement is a key component of this process, allowing for valuable input that helps shape future transportation planning. The Review will culminate in recommendations that guide future improvements and ensure the continued success of OC Go initiatives.

During the Review process, the public can share their input through an online survey and at upcoming community events and webinars. Details about engagement opportunities will be posted on the OCTA website and shared via email and social media. Please sign up to receive updates at www.octa.net/M2Review.

The Review may lead to recommendations for how M2 funding can be better align with future transportation needs and priorities. However, major changes—like shifting funding between freeways, streets, transit, or environmental programs—would require additional approvals, including a public vote. Smaller adjustments could be made with Taxpayer Oversight Committee (TOC) and OCTA Board of Directors approval.

The OCTA Board of Directors will consider the findings and recommendations and determine which recommendations will be implemented. Some actions may be implemented immediately, while others may guide long-term planning, project development, or future policy and transportation strategies.

The report is anticipated to be presented to the OCTA Board of Directors in early 2026.

Visit www.octa.net/m2 for additional documents, reports, and a full list of programs and projects.