Public Participation Plan
SCAG is a regional forum and a conduit between local jurisdictions, state agencies, and federal agencies. SCAG’s Regional Council and policy committees bring together elected leaders from diverse geographies to guide regional planning in pursuit of shared goals to benefit the region.
Public participation is fundamental to SCAG’s mission because understanding the needs of local governments, stakeholders, and the public strengthens planning processes. In many ways, SCAG’s success relies on meaningful participation.
The Public Participation Plan (PPP) outlines SCAG's vision and commitments to representative, accessible, and effective engagement in the development of its plans, programs, and initiatives.
Draft Public Participation Plan-2026 Update Comment Period

As an early stage in the development of its Connect SoCal Regional Transportation Plan/Sustainable Community Strategy, SCAG has prepared a Draft Public Participation Plan. This update aligns SCAG’s PPP with its 2024 Strategic Plan by outlining methodologies for conducting participation efforts, summarizing communication activities to be used, and describing SCAG’s processes for evaluating public and stakeholder participation.
The Legislative/Communications and Membership Committee approved the Draft Public Participation Plan for public release on Sept. 16, 2025. The 45-day public comment period for the 2026 Draft Public Participation Plan begins Sept. 22, 2025, and concludes on Nov. 7, 2025.
Comments will be accepted throughout the comment period via online form, email, dedicated phone line, and U.S. mail as outlined below through 5pm on Nov. 7, 2025:
Email: contact@scag.ca.gov using the subject line “Public Participation Plan Comment”
Dedicated phone line: (213) 236-1895
U.S. Mail:
Attn: Media and Public Affairs Department
Southern California Association of Governments
900 Wilshire Blvd., Ste. 1700
Los Angeles, CA 90017
In accordance with the Americans with Disabilities Act and Language Accessibility, SCAG is committed to helping those with disability and/or with limited proficiency in the English language access the agency’s essential public information and services in accordance with Title VI of the Civil Rights Act. Please email contact@scag.ca.gov or call (213) 236-1895 to request accommodation or if you need additional information. SCAG will respond within 72 hours of an accommodation request and will make every effort to arrange for assistance as soon as possible.
- Draft Public Participation Plan - 2026 Update Comment Period
- Borrador Del Plan De Participación Pública -- Período De Consulta Pública De La Actualización De 2026
- 公眾參與計畫草案 — 2026 年更新意見徵詢期
- 공공 참여 계획 초안 -- 2026 의견 수렴 기간에 대한 개정안
- DỰ THẢO KẾ HOẠCH THAM VẤN CỘNG ĐỒNG -- ĐỢT LẤY Ý KIẾN CHO BẢN CẬP NHẬT 2026
- 2026 Draft Public Participation Plan Executive Summary
- Borrador Del Plan De Participación Pública 2026: Resumen Ejecutivo
- 2026 年公眾參與計畫草案執行摘要
- 2026년 공공 참여 계획에 대한 초안 요약서
- TÓM TẮT THỰC HIỆN DỰ THẢO KẾ HOẠCH THAM VẤN CỘNG ĐỒNG NĂM 2026
SCAG 2022 Public Participation Plan
Adopted April 7, 2022

On April 7, 2022, SCAG’s Regional Council adopted an updated Public Participation Plan designed to be accessible to a general audience and adaptable in anticipation of evolving technologies and practices. SCAG’s planning work serves a large and diverse region, and public participation is an essential component of the agency’s planning process. This plan is key to ensuring that SCAG’s approach to public engagement is effective and inclusive.
Read SCAG's Public Participation Plan