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Buy Clean California Act (AB 262)

Learn about the maximum acceptable Global Warming Potential (GWP) for eligible materials:carbon steel rebar,flat glass, mineral wool board insulation and structural steel. The Buy Clean California Act (Assembly Bill 262, Chapter 816, Statutes of 2017), signed into law October 15, 2017, states by January 1, 2019, the Department of General Services (DGS) is required to establish and publish the GWP in the State Contracting Manual.


March 15, 2018
DGS invited state agencies affected by AB 262 for a follow-up discussion on March 15, 2018 at their offices. DGS presented its latest findings and state agencies discussed the next steps for implementation of the law. The following were in attendance; California Department of Corrections and Rehabilitation, Department of Transportation (Caltrans) and University of California, Office of the President.

 Find meeting materials below.

Dec. 22, 2017
Agencies and Universities impacted by AB 262 should identify a member(s) from your organization to participate in one to four product category focus groups: 1) carbon steel rebar, 2) flat glass, 3) mineral wool board insulation and 4) structural steel steal. The role of the participant will be to identify a process for receiving and acceptance of eligible materials during the public works project, tracking facility-specific Environmental Product Declarations related to a project, reducing emissions over time and reporting obstacles and effectiveness to reduce GWP. Send their contact information to to participate in one or more of our GWP Product Category focus groups.

Dec. 21, 2017
DGS held a Kickoff Event with state agencies to provide an overview of AB 262, discuss investigations to date challenges in developing the average GWP and next steps to implementation.


i. Program Operator Consortium (POC) develops Product Category Rules (PCR), reviews and verifies Environmental Product Declarations (EPD), reports Life Cycle Assessment (LCA), and publishes customized Type III environmental declaration formats in accordance with the International Standard ISO 14025.

Find PCRs and EPDs on their website

ii. UL Environmental program operator develops PCRs and verifies EPDs alongside the POC.

Find PCRs that are under development or may not be covered by the POC.
Find EPDs in the UL SPOT database. Once there, enter the product name, look for certifications then EPDs.

Contact Us

Email with comments or questions regarding AB 262. To ensure that your questions receive accurate and timely responses, please provide your name, phone number, and agency/organization name.
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