Program Directory
Compare requirements, track materials, and check project eligibility.
Buy Clean California Act
ActiveSets max GWP limits for steel, rebar, glass, and insulation on state public works. Facility-specific EPDs required before installation.
Buy Clean Colorado Act — Buildings
ActiveEstablishes max GWP limits for state building projects >=500K across material categories. Reviewed every 4 years; may update annually.
Buy Clean Colorado Act — Transportation
ActiveApplies GWP limits to transportation materials under C.R.S. 24-92-118. Separate from OSA; covers roads, highways, and bridges statewide.
California CALGreen Embodied Carbon
ActiveRequires EC compliance via Building Reuse, WBLCA, or Prescriptive EPD pathways on large nonresidential buildings. First mandatory US code.
City of Boston Net Zero Carbon Zoning
ActiveRequires embodied carbon accounting and WBLCA for new buildings >=50,000 sf. Adopted Jan 2025 as part of the broader BERDO net-zero mandate.
City of Portland Low-Embodied Carbon Concrete
ActiveEnforces per-strength-class GWP limits via Type III EPD. Per-mix or project-average compliance available. Thresholds reviewed annually.
City of Santa Monica Low-Carbon Concrete Ordinance
ActiveEnforces cement and GWP limits for concrete in all new buildings, pools, and spas. Per-mix or project-average compliance. Ordinance #2778.
Colorado Low Carbon Materials Tax Exemption
ActiveExempts qualifying low-EC materials from state sales and use tax when verified by EPD. Complements the Buy Clean procurement mandate.
Colorado Model Green Code
ActiveVoluntary local code covering energy, electrification, and low-carbon materials. Adopted on top of the required state energy code.
Denver Green Code — Embodied Carbon
ActiveIncludes GWP limits for concrete and steel as elective credits within Denver's mandatory Green Code for commercial and multifamily projects.
GSA IRA Low Embodied Carbon
ActiveDeploys $2.15B in IRA funding through tiered GWP thresholds. EPDs required with no waivers across concrete, asphalt, steel, and glass.
Marin County Low Carbon Concrete Code
ActiveRequires low-carbon concrete compliance via Cement Limit or per-strength-class GWP path. First such building code in North America.
Minnesota Buy Clean Buy Fair Act — Transportation
ActiveApplies the same GWP limit framework to MnDOT projects. ~80 eligible roadway paving projects per year; piloted with CSBR and CLF.
MTA Clean Construction Program
ActiveRequires low-carbon concrete specs on all MTA contracts since Jan 2024. GWP limits span multiple mix types alongside steel and asphalt.
NYC DEP Low Carbon Concrete
ActiveEnforces 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.
NYC EO 23 Clean Construction
ActiveDirects all NYC capital agencies to require EPDs for concrete and steel, conduct LCAs, and set low-carbon specs on public projects.
NYS Buy Clean Concrete
ActiveEnforces per-strength-class GWP limits at 150% of NRMCA Eastern benchmarks. Phase 3 will lower limits in 2027 using NY-specific EPD data.
NYS EO 22 Embodied Carbon Guidance
ActiveOregon DEQ Low Embodied Carbon Housing
ActiveTies $25.6M in EPA grant funding to a 10% EC reduction via Short List, Select List, or strategy checklist pathways. CO deadline March 2029.
PANYNJ Clean Construction Program
ActiveTargets up to 37% EC reduction via recycled glass pozzolan and Portland-limestone cement specs. Part of the PA's 2050 net-zero commitment.
CARB Embodied Carbon Framework
PendingMandates a framework to cut building material carbon intensity 40% by 2035. Reporting framework due 2026; reduction strategy due 2028.
Colorado C-PACE Embodied Carbon Financing
PendingExpands C-PACE financing to cover low-carbon materials achieving >=15% EC reduction. First state to make C-PACE available for materials.
Illinois DOT Low Carbon Materials Program
PendingDevelops EPD specs and LEC procurement for transportation through an FHWA LCTM grant. Also a Federal-State Buy Clean Partnership member.
Maryland Buy Clean Act
PendingDirects DGS to set GWP limits from collected producer EPDs. Contractor compliance required before material installation once limits are set.
Massachusetts ECICC Embodied Carbon Program
PendingPublished a statewide EC reduction plan in Jan 2026 covering buildings and transportation. Updated plan required every 2 years by statute.
New Jersey LECCLA
PendingOffers tax credits up to 8% of contract cost for concrete mixes below NJ DEP GWP thresholds on state-funded projects >=50 cy.
Oregon DOT Low Carbon Materials Program
PendingAdvances EPD acceptance and LEC specifications for transportation infrastructure through an FHWA LCTM grant. Pilot projects in development.
Washington Buy Clean and Buy Fair Act
PendingRequires EPD and optional HPDs and labor data reporting for covered materials on large public projects. GWP limits expected after the Dec 2025 TWG report.
Wisconsin DOT Low Carbon Materials Program
PendingBuilds an EPD framework for asphalt and concrete selection and usage tracking on transportation projects through an FHWA LCTM grant.
City of Los Angeles Embodied Carbon Motion
ProposedDirects LADBS to draft GWP limits for the LA Green Building Code. Framework targets new construction and major additions >=50,000 sf.
New Mexico Low-Carbon Construction Rebate Act
ProposedProposes rebates up to $500K per project for low-GWP materials. Passed with bipartisan support but vetoed by the governor in 2024.