Buy Clean Colorado (BCCO) Act (C.R.S. 24-92-117)

By January 1, 2024, the office of the state architect shall establish by policy a maximum acceptable global warming potential for each category of eligible materials used in an eligible project in accordance with listed requirements.
"Eligible material" means materials used in the construction of a public project, including:
(I) Asphalt and asphalt mixtures;
(II) Cement and concrete mixtures;
(III) Glass;
(IV) Post-tension steel;
(V) Reinforcing steel;
(VI) Structural steel; and
(VII) Wood structural elements.

The Buy Clean Colorado (BCCO) Act requires the Office of the State Architect (OSA) to establish a maximum acceptable global warming potential (GWP) limit for each category of eligible materials, which include asphalt and asphalt mixtures, cement and concrete mixtures, glass, post-tension steel, reinforcing steel, structural steel, and wood structural elements. These materials are the focus for Buy Clean Colorado due to their high carbon emissions impact and volume use in public projects and since reducing the impact of these materials will provide the greatest reduction of greenhouse gas emissions from State public projects. Through design optimization and responsible selection of materials, reduction of embodied carbon emissions from building materials can be accomplished.

OSA released its finalized GWP limits in January 2024.

Buy Clean Colorado (BCCO)

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