Active

Colorado Model Green Code

State of ColoradoColorado Energy Office (CEO)

Effective February 23, 2026Last updated October 13, 2026

01 / Reduction targets

Reduction targets

02 / Project eligibility

Project eligibilityVoluntary

Whether a project is in scope.

Project types

New ConstructionMajor RenovationAddition/Expansion

Construction types

Mixed-UseIndustrialData CentersHospitalityCommercialInstitutional

ThresholdNo minimum project size or cost. This code is voluntary for local governments to adopt, and where a jurisdiction adopts it, compliance is triggered by permit application.

Project life cycleCapital projects

Project waivers

03 / Covered materials

Covered materialsThreshold

Concrete limits, in A1–A3 global warming potential.
Product type	Tier 1	Tier 2	Scope	Unit
Ready-Mix Concrete
2,500 psi	232	209	A1–A3	kgCO₂e/m³
3,000 psi	255	230	A1–A3	kgCO₂e/m³
4,000 psi	301	271	A1–A3	kgCO₂e/m³
5,000 psi	358	322	A1–A3	kgCO₂e/m³
6,000 psi	379	341	A1–A3	kgCO₂e/m³
8,000 psi	440	396	A1–A3	kgCO₂e/m³
LW 3,000 psi	484	436	A1–A3	kgCO₂e/m³
LW 4,000 psi	532	479	A1–A3	kgCO₂e/m³
LW 5,000 psi	580	522	A1–A3	kgCO₂e/m³
Cement	1,112	1,001	A1–A3	kgCO₂e/t
Masonry
CMU, NW, f'm=2,000 psi	395	356	A1–A3	kgCO₂e/m³
CMU, NW, f'm=2,500 psi	395	356	A1–A3	kgCO₂e/m³
CMU, NW, f'm=3,000 psi	395	356	A1–A3	kgCO₂e/m³
CMU, medium weight	395	356	A1–A3	kgCO₂e/m³
CMU, lightweight	395	356	A1–A3	kgCO₂e/m³
Precast Concrete	EPD only	EPD only	A1–A3	kgCO₂e/m³

04 / Compliance pathways

Compliance pathways

One of 4 routes satisfies this program. Pick the one that matches how your project buys materials; every route ends in the same submittal review.

Product Specification

1 of 4

What you must demonstrate

What you must submit

When you submit it

Who receives it

How compliance is verified

05 / EPD requirements

EPD requirements

What an Environmental Product Declaration has to satisfy.

Standards

ISO 14025ISO 21930

Product category rules

Any Valid Conforming PCR

Program operators

Any Qualified Operator

ValidityNo expiration limit

EPD SubmissionSubmit EPDs with your construction documents at permit application. If construction departs from the approved documents, resubmit an amended set. Inspections confirm installed materials match the approved documents or carry the same or lower embodied carbon.

06 / Incentives

IncentivesSales Tax Exemption

CO Sales & Use Tax Exemption2.9% state sales tax will be exempted. · Eligible building materials are exempt from Colorado’s state sales and use tax when the product’s EPD meets the Office of the State Architect’s GWP limits and appears on its eligible list. Through the linked CO Sales & Use Tax Exemption program, project teams can see which assigned EPDs qualify and the estimated savings on each line item.Eligibility · Product By Product. The EPD Must Be Product Specific And On OSA’s Eligible List, Separate From Code Compliance.

07 / Program contact

Program contact

Contact

Program head

Adam Berry

Department

Colorado Energy Office

coloradoenergyoffice@state.co.us

Phone

303-866-2100

Website

energyoffice.colorado.gov

Next update