Program Directory

    Compare requirements, track materials, and check project eligibility.

    21Active Programs
    12States
    1.1k+Manufacturers

    Buy Clean California Act

    Active
    California (state)·July 2022

    Sets max GWP limits for steel, rebar, glass, and insulation on state public works. Facility-specific EPDs required before installation.

    SteelGlassInsulation
    Threshold
    Department of General Services

    Buy Clean Colorado Act — Buildings

    Active
    Colorado (state)·January 2024

    Establishes max GWP limits for state building projects >=500K across material categories. Reviewed every 4 years; may update annually.

    AsphaltConcreteGlassSteelWood
    Threshold
    Office of the State Architect (OSA)

    Buy Clean Colorado Act — Transportation

    Active
    Colorado·January 2024

    Applies GWP limits to transportation materials under C.R.S. 24-92-118. Separate from OSA; covers roads, highways, and bridges statewide.

    AsphaltConcreteSteel
    Threshold
    Colorado Department of Transportation (CDOT)

    California CALGreen Embodied Carbon

    Active
    California·July 2024

    Requires EC compliance via Building Reuse, WBLCA, or Prescriptive EPD pathways on large nonresidential buildings. First mandatory US code.

    SteelGlassInsulationConcrete
    Threshold
    California Building Standards Commission (BSC)

    City of Boston Net Zero Carbon Zoning

    Active
    Boston, Massachusetts·January 2025

    Requires embodied carbon accounting and WBLCA for new buildings >=50,000 sf. Adopted Jan 2025 as part of the broader BERDO net-zero mandate.

    ConcreteSteelWoodInsulation
    Reporting
    Boston Planning Department + Mayor's Office of Housing

    City of Portland Low-Embodied Carbon Concrete

    Active
    Portland, Oregon·January 2023

    Enforces per-strength-class GWP limits via Type III EPD. Per-mix or project-average compliance available. Thresholds reviewed annually.

    Concrete
    Threshold
    Central Procurement Services

    City of Santa Monica Low-Carbon Concrete Ordinance

    Active
    Santa Monica, California·June 2024

    Enforces cement and GWP limits for concrete in all new buildings, pools, and spas. Per-mix or project-average compliance. Ordinance #2778.

    Concrete
    Threshold
    City of Santa Monica Building and Safety Division

    Colorado Low Carbon Materials Tax Exemption

    Active
    Colorado·July 2024

    Exempts qualifying low-EC materials from state sales and use tax when verified by EPD. Complements the Buy Clean procurement mandate.

    AsphaltConcreteGlassSteelWood
    Incentive
    Colorado OSA + Colorado Department of Revenue

    Colorado Model Green Code

    Active
    Colorado (state)·September 2025

    Voluntary local code covering energy, electrification, and low-carbon materials. Adopted on top of the required state energy code.

    ConcreteSteelWood
    Threshold
    Colorado Energy Office (CEO)

    Denver Green Code — Embodied Carbon

    Active
    Denver, Colorado·May 2023

    Includes GWP limits for concrete and steel as elective credits within Denver's mandatory Green Code for commercial and multifamily projects.

    ConcreteSteel
    Threshold
    City and County of Denver, Community Planning and Development

    GSA IRA Low Embodied Carbon

    Active
    United States·December 2023

    Deploys $2.15B in IRA funding through tiered GWP thresholds. EPDs required with no waivers across concrete, asphalt, steel, and glass.

    ConcreteAsphaltSteelGlass
    Threshold
    U.S. General Services Administration (GSA)

    Marin County Low Carbon Concrete Code

    Active
    Marin County, California·January 2020

    Requires low-carbon concrete compliance via Cement Limit or per-strength-class GWP path. First such building code in North America.

    Concrete
    Threshold
    Marin County Community Development Agency (CDA)

    Minnesota Buy Clean Buy Fair Act — Transportation

    Active
    Minnesota (state)·July 2026

    Applies the same GWP limit framework to MnDOT projects. ~80 eligible roadway paving projects per year; piloted with CSBR and CLF.

    ConcreteAsphaltSteel
    Reporting
    Minnesota Department of Transportation (MnDOT)

    MTA Clean Construction Program

    Active
    New York City / New York State·January 2024

    Requires low-carbon concrete specs on all MTA contracts since Jan 2024. GWP limits span multiple mix types alongside steel and asphalt.

    ConcreteSteelAsphaltGlass
    Threshold
    Metropolitan Transportation Authority (MTA)

    NYC DEP Low Carbon Concrete

    Active
    New York City·September 2022

    Enforces GWP upper limits for 4,000 and 5,000 psi mixes on DEP projects. One of the first agency-specific thresholds under NYC EO 23.

    Concrete
    Threshold
    NYC Department of Environmental Protection (DEP)

    NYC EO 23 Clean Construction

    Active
    New York City·September 2022

    Directs all NYC capital agencies to require EPDs for concrete and steel, conduct LCAs, and set low-carbon specs on public projects.

    ConcreteSteel
    Reporting
    NYC Mayor's Office of Climate and Sustainability

    NYS Buy Clean Concrete

    Active
    New York (state)·January 2025

    Enforces per-strength-class GWP limits at 150% of NRMCA Eastern benchmarks. Phase 3 will lower limits in 2027 using NY-specific EPD data.

    Concrete
    Threshold
    Office of General Services (OGS)

    NYS EO 22 Embodied Carbon Guidance

    Active
    New York (state)·June 2023

    concretesteelflat-glassasphalt
    Reporting
    Office of General Services (OGS)

    Oregon DEQ Low Embodied Carbon Housing

    Active
    Oregon (state)·January 2024

    Ties $25.6M in EPA grant funding to a 10% EC reduction via Short List, Select List, or strategy checklist pathways. CO deadline March 2029.

    ConcreteSteelWoodInsulationGypsum
    Threshold
    Oregon DEQ with Carbon Leadership Forum

    PANYNJ Clean Construction Program

    Active
    New York / New Jersey·September 2020

    Targets up to 37% EC reduction via recycled glass pozzolan and Portland-limestone cement specs. Part of the PA's 2050 net-zero commitment.

    ConcreteSteelAsphalt
    Threshold
    Port Authority of New York and New Jersey

    CARB Embodied Carbon Framework

    Pending
    California·January 2026

    Mandates a framework to cut building material carbon intensity 40% by 2035. Reporting framework due 2026; reduction strategy due 2028.

    ConcreteSteelGlassAsphaltWood
    Reporting
    California Air Resources Board (CARB)

    Colorado C-PACE Embodied Carbon Financing

    Pending
    Colorado·May 2025

    Expands C-PACE financing to cover low-carbon materials achieving >=15% EC reduction. First state to make C-PACE available for materials.

    ConcreteSteelWoodInsulation
    Incentive
    Colorado Energy Office + Colorado New Energy Improvement District

    Illinois DOT Low Carbon Materials Program

    Pending
    Illinois·TBD

    Develops EPD specs and LEC procurement for transportation through an FHWA LCTM grant. Also a Federal-State Buy Clean Partnership member.

    ConcreteAsphaltSteelGlass
    Threshold
    Illinois Department of Transportation (IDOT)

    Maryland Buy Clean Act

    Pending
    Maryland·July 2026

    Directs DGS to set GWP limits from collected producer EPDs. Contractor compliance required before material installation once limits are set.

    ConcreteCement
    Threshold
    Maryland Department of General Services (DGS)

    Massachusetts ECICC Embodied Carbon Program

    Pending
    Massachusetts·January 2026

    Published a statewide EC reduction plan in Jan 2026 covering buildings and transportation. Updated plan required every 2 years by statute.

    ConcreteSteelGlassAsphaltWood
    Reporting
    Embodied Carbon Intergovernmental Coordinating Council (ECICC)

    New Jersey LECCLA

    Pending
    New Jersey·January 2023

    Offers tax credits up to 8% of contract cost for concrete mixes below NJ DEP GWP thresholds on state-funded projects >=50 cy.

    Concrete
    Incentive
    NJ Department of Environmental Protection (DEP)

    Oregon DOT Low Carbon Materials Program

    Pending
    Oregon (state)·TBD

    Advances EPD acceptance and LEC specifications for transportation infrastructure through an FHWA LCTM grant. Pilot projects in development.

    ConcreteAsphaltSteel
    Threshold
    Oregon Department of Transportation (ODOT)

    Washington Buy Clean and Buy Fair Act

    Pending
    Washington (state)·July 2024

    Requires EPD and optional HPDs and labor data reporting for covered materials on large public projects. GWP limits expected after the Dec 2025 TWG report.

    concrete
    Reporting
    Department of Commerce

    Wisconsin DOT Low Carbon Materials Program

    Pending
    Wisconsin·TBD

    Builds an EPD framework for asphalt and concrete selection and usage tracking on transportation projects through an FHWA LCTM grant.

    ConcreteAsphalt
    Reporting
    Wisconsin Department of Transportation (WisDOT)

    City of Los Angeles Embodied Carbon Motion

    Proposed
    Los Angeles, California·TBD

    Directs LADBS to draft GWP limits for the LA Green Building Code. Framework targets new construction and major additions >=50,000 sf.

    ConcreteSteelGlassInsulation
    Threshold
    LA Department of Building and Safety (LADBS)

    New Mexico Low-Carbon Construction Rebate Act

    Proposed
    New Mexico·TBD

    Proposes rebates up to $500K per project for low-GWP materials. Passed with bipartisan support but vetoed by the governor in 2024.

    ConcreteSteelGlassAsphaltCement
    Incentive
    NM Environment Department (NMED)
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