Turbo Architecture Files
Turbo Architecture is a software application that supports development of regional and project ITS architectures using the National ITS Architecture as a starting point. The software is available for free and can be downloaded at the Turbo Architecture Support Page.
SCAG makes available Subregional ITS Architecture files to be used with the Turbo Architecture software here:
- Imperial County ITS Architecture Files (WinZip TBO)
- Inland Empire ITS Architecture Files for Riverside & San Bernardino Counties (WinZip TBO)
- Los Angeles County ITS Architecture Files (RAD-IT)
- Multi-County Issue ITS Architecture Files - 2004 (WinZip TBO)
- Orange County ITS Architecture Files (WinZip TBO)
- Ventura County ITS Architecture Files (WinZip TBO)
Additional downloads:

California State Budget Reduces Barriers to Housing Production and Extends Deadline for Regional Early Action Planning (REAP 2.0) Program
Earlier this week, the governor signed the 2025-2026 state budget, which includes a suite of reforms to reduce barriers to housing production.

Connect SoCal 2024 Implementation Update: Sustainable Communities Strategy Accepted
On May 7, the California Air Resources Board (CARB) informed SCAG that it had accepted SCAG’s determination that the Connect SoCal 2024 Regional Transportation Plan/Sustainable Communities Strategy (RTP/SCS) meets CARB’s greenhouse gas (GHG) emission reduction targets.

General Assembly Elects 2025-26 Board Officers
The General Assembly voted to approve the nominations for the SCAG 2025-26 Regional Council officers as recommended by the Regional Council: Hon. Cindy Allen (City of Long Beach) will serve as 2025-26 Regional Council president; Hon. Ray Marquez (City of Chino Hills) will serve as Regional Council first vice president; and Hon. Jenny Crosswhite (City of Santa Paula) will serve as Regional Council second vice president. Leadership also recognized Hon.

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The federal fiscal year 2026-27 and federal fiscal year 2027-28 Surface Transportation Block Grant program (STBG) and Congestion Mitigation and Air Quality Improvement program (CMAQ) SCAG online application opened for all eligible applicants on March 31. This application will be available through May 16 at 5 p.m.

Surface Transportation Block Grant and Congestion Mitigation and Air Quality Improvement Program Guidelines Now Available
On March 6, the SCAG Regional Council approved the federal fiscal year 2026-27 and federal fiscal year 2027-28 Surface Transportation Block Grant program (STBG) and Congestion Mitigation and Air Quality Improvement program (CMAQ) Program Guidelines.