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NGA releases building compliance FAQs

April 29, 2020  By National Glass Association

The National Glass Association (NGA) is pleased to offer a new resource in the form of Frequently Asked Questions (FAQs) that address compliance of glass in buildings in accordance with the California AB262 legislation, also known as the Buy Clean California Act.

“The Buy Clean California (AB262) legislation has generated a lot of questions about its impact on the use of glass in construction in the state,” says Chris Dolan, Guardian Glass and member of the NGA Forming Committee. “We think stakeholders and other interested parties will find the NGA Frequently Asked Questions a helpful document. It summarizes key elements of the legislation, defines flat glass and processed glass to their respective Product Category Rules (PCRs) and offers guidance on what is required when bidding on California state-funded projects.”

The FAQs go into detail on additional topics, including:

  • The definition of a public works project and how it fits into CA AB262
  • Key legislation dates that affect eligible materials accepted
  • Definitions of flat glass and processed glass according to the legislation verbiage
  • Requirements to bid on a California state-funded project
  • Methods to locate data and address questions surrounding data for Global Warming Potential and compliance with AB262
  • And more

“NGA continues to work with the California Department of General Services and other interested parties to clarify the language of the bill—to ensure they understand the effects on public works building projects in California and to provide education about glass and glazing supply,” according to Urmilla Sowell, NGA Advocacy and Technical Director.


View and download the FAQs for Glass in Buildings in Compliance with California AB262, available on NGA’s Advocacy webpage at

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