What is the Program Environmental Impact Report (PEIR)?

SCAG's PEIR is an environmental report that will analyze and disclose potential impacts of the Connect SoCal plan on the environment. The report is required under law by the California Environmental Quality Act (CEQA). SCAG’s PEIR will provide a region-wide assessment of potential significant environmental effects of Connect SoCal as well as consider broad policy alternatives and program-wide mitigation measures. More importantly, the PEIR provides a foundation for subsequent, project-specific environmental reviews that will be conducted by local implementation agencies.

What will the PEIR Analyze?

The PEIR is a programmatic document that will analyze potential effects of Connect SoCal on the environment. Although the Connect SoCal plan includes many transportation projects, the PEIR does not specifically analyze environmental effects of any individual transportation or development project. Project-level environmental analyses will be prepared by implementing agencies on a project-by-project basis as projects proceed through the design and decision-making process. SCAG's PEIR will analyze:

  • Aesthetics and Views
  • Agricultural and Forestry Resources
  • Air Quality
  • Biological Resources and Open Space
  • Cultural Resources
  • Energy
  • Geology, Soils and Mineral Resources
  • Greenhouse Gas Emissions and Climate Change
  • Tribal Cultural Resources
  • Hazards and Hazardous Materials
  • Hydrology and Water Quality
  • Land Use and Planning
  • Noise
  • Population and Housing
  • Recreation
  • Transportation, Traffic and Safety
  • Public Services and Utilities
  • Wildfire

Notice of Preparation

SCAG released a Notice of Preparation of a Program Environmental Impact Report for Connect SoCal on January 23, 2019. The Notice of Preparation formally initiates the CEQA process with respect to the Programmatic Environmental Impact Report and is intended to alert responsible agencies, interested agencies, organizations and individuals of the preparation of the PEIR. A 30-day public comment period will begin on January 23, 2019 and end on February 22, 2019.


SCAG will be hosting two scoping meetings for the PEIR at SCAG’s Los Angeles office. Information for the scoping meeting is as follows:

Date: Wednesday, February 13, 2019
Time: 3:00 p.m. - 5:00 p.m. and 6:30 p.m. - 8:30 p.m.
Location: Southern California Association of Governments
900 Wilshire Blvd., Suite 1700
Los Angeles, CA 90017
Room: Policy Committee - A

Videoconferencing and webcast options are available. Please visit the Upcoming Events page for more info.

Participants in need of translation services or special accommodations at a scoping meeting due to disabilities, please contact Roland Ok at (213) 236-1819, or email 2020PEIR@scag.ca.gov at least 72 hours prior to your attendance.

說明會參加者若在說明會議中需要翻譯服務或因殘疾需要特殊幫助, 請在參加說明會開始前的72小時內聯繫 Roland Ok (213) 236-1819 或電子郵件寄至 2020PEIR@scag.ca.gov.

Para solicitar un intérprete de idiomas o para acomodar a personas con discapacidades en la reunión de ambitos, sírvase comunicarse con Roland Ok al (213) 236-1819 o 2020PEIR@scag.ca.gov en menos de 72 horas antes de la reunión.

전문가 회의에 오시는 분들 중 한국어통역이 필요하신 분이나 장애로 인해 특별한 편의가 필요하신 분은 Roland Ok 에게 회의 시작 최소한72시간 이전에 문의 하시기 바랍니다. 문의전화: ( 213 ) 236-1819, 이메일 주소: 2020PEIR@scag.ca.gov.

Xin vui lòng liên lạc Roland Ok ở xố điện thoại (213) 236-1819 hay 2020PEIR@scag.ca.gov 72 tiếng trước buổi họp nếu quý vị cần sự giúp đỡ về thông dịch hoặc khuyết tật.

Submitting Comments

Please send comments related to the Notice of Preparation to:

Southern California Association of Governments
Attn: Mr. Roland Ok
900 Wilshire Blvd., Ste 1700
Los Angeles, CA 90017

Comments may also be submitted electronically to 2020PEIR@scag.ca.gov.

All responses must be sent no later than 5:00 p.m. on Friday, February, 22, 2019.

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Southern California Association of Governments.
All Rights Reserved.