Last Updated: January 2025
The following list contains the MasterFormat CSI Code Sections that align with the eligible materials included in the Buy Clean Colorado (BCCO) Act. Materials included in these sections may be subject to the Office of the State Architect (OSA) BCCO Act global warming potential (GWP) requirements. Please refer to the subsections included in each MasterFormat Section as they may contain additional CSI Codes relevant to the eligible materials. In addition, some sections may involve an assembly which includes an eligible material that needs to meet the GWP requirements. For those instances, the GWP of the eligible materials included in the assembly must comply with the OSA GWP limits. Only consider eligible materials that have GWP limits established by the OSA. Please see the OSA BCCO Act webpage for the list of eligible materials and associated policy.
- Section 030510 – General Concrete
- Section 031000 – Concrete Formwork (Structural)
- Section 032100 – Concrete Reinforcing
- Section 032500 – Composite Reinforcing
- Section 033000 – Cast-in-place Concrete
- Section 035400 – Cast Underlayment
- Section 051000 – Structural Metal Framing
- Section 051200 – Structural Steel Framing Products
- Section 051213 – Architecturally Exposed Structural Steel Framing
- Section 052000 – Metal Joists (Only If Hot-rolled Steel)
- Section 052100 – Steel Joist Framing (Only If Hot-rolled Steel)
- Section 053000 – Metal Decking (Only If Hot-rolled Steel)
- Section 053100 – Steel Decking (Only If Hot-rolled Steel)
- Section 055000 – Metal Fabrications (Only If Hot-rolled Steel)
- Section 061000 – Rough Carpentry
- Section 061100 – Wood Framing
- Section 061300 – Heavy Timber Construction
- Section 061500 - Wood Decking
- Section 061600 – Sheathing
- Section 061700 – Shop-fabricated Structural Wood
- Section 061800 – Glued-laminated Construction
- Section 076200 - Sheet Metal Flashing And Trim
- Section 081113 - Hollow Metal Doors And Frames
- Section 084000 – Entrances, Storefronts, And Curtain Walls
- Section 084413 – Glazed Aluminum Curtain Walls
- Section 085113 – Aluminum Windows
- Section 088000 – Glazing
- Only applicable for flat glass products; Processed glazing is not yet considered under the BCCO Act.
- Section 315600 – Slurry Walls
- Section 316000 – Special Foundations And Load-bearing Elements
- Section 321100 – Paving
- Section 321200 - Flexible Paving
- Section 321216 – Asphalt Paving
- Section 321300 - Rigid Paving
- Section 321400 - Unit Paving
- Section 321600 - Curbs, Gutters, Sidewalks, And Driveways
- Section 323200 – Retaining Walls
- Section 337119 – Electrical Underground Duct And Duct Banks
- Section 357000 – Dam Construction And Equipment