Commissioning
Independent verification that systems perform as intended
Commissioning is where we began, and it remains central to what we do. We manage the process from planning through functional testing and warranty follow-up, providing the owner an objective record that systems work, including where an energy code requires it.
Commissioning management
End-to-end leadership of the commissioning process, from planning and documentation through verification and closeout.
TAB review
Independent review of the balancing contractor's test-and-balance reports to confirm airflows and water flows meet design (we review; we don't perform TAB).
Functional testing oversight
Directing and witnessing structured functional performance tests that exercise systems through their sequences and modes of operation.
Deficiency tracking
A single, documented log of observed issues carried to resolution with accountable responses.
Warranty support
Guidance during the commissioning and warranty period to identify and resolve performance issues before coverage lapses.
Seasonal testing
Deferred testing under heating and cooling conditions that weren't available at initial commissioning.
Occupancy readiness
Verification that systems and controls are ready to support comfortable, reliable occupancy at turnover.
Do you need commissioning?
Check your jurisdiction and project.
A preliminary indication based on the adopted code, project location, and system capacities. We confirm the requirement, local amendments, and signer path before any engagement.
Does commissioning likely apply?
60-second check51 jurisdictions
Alabama
ASHRAE 90.1-2013 · eff. 2016
§6.7 commissioning mandatory (>50,000 sf); non-PE approved-agency path applies.
Alaska
None statewide
Major cities
- AnchorageLocal building code
No statewide commercial code; Anchorage enforces its own.
Arizona
None statewide
Major cities
- Scottsdale2021 IECC
- Phoenix2018 IECC
- TucsonLocal IECC
Home-rule state: energy-code adoption varies by city; we confirm the edition for your project's jurisdiction.
Arkansas
2009 IECC
2009 IECC predates C408, so there's no code Cx requirement.
California
Title 24, Part 6
Title 24 (not IECC); acceptance testing requires a CEC-certified ATT.
Colorado
None statewide (MLECC from Jul 2026)
Major cities
- Denver2021 IECC (Denver amendments)
- BoulderLocal IECC
- Fort CollinsLocal IECC
Home-rule state: Denver, Boulder, and Fort Collins enforce local energy codes; we confirm the edition for your project's jurisdiction.
Connecticut
2021 IECC
Delaware
2018 IECC + 90.1-2016 · eff. 2020
Florida
Florida Bldg Code (Energy, 2021 IECC basis)
Statewide uniform code.
Georgia
2015 IECC + GA amendments · eff. 2020
C408 renamed 'functional performance testing' (§C408.2.4.1 deleted); requirement + non-PE path intact. Confirm the local AHJ enforces it.
Hawaii
2021 IECC
Idaho
2018 IECC (2020 IDECC) · eff. 2021
Major cities
- Boise2018 IECC + Form 308-A
Statewide; Boise adds a credential-documentation step (Form 308-A).
Illinois
2021 IECC
Indiana
ASHRAE 90.1-2007 (675 IAC 19)
Iowa
2012 IECC · eff. 2014
Dated code; capacity threshold only.
Kansas
None statewide
Major cities
- Overland ParkLocal IECC
- WichitaLocal IECC
- Kansas City (KS)Local IECC
Home-rule; verify each city's edition.
Kentucky
2012 IECC · eff. 2019
Dated code; narrow capacity threshold.
Louisiana
2021 IECC
Maine
2021 IECC
Maryland
2021 IECC
Massachusetts
2021 IECC + amendments
Michigan
2021 IECC
Minnesota
ASHRAE 90.1-2019 (2024 MN code) · eff. Jan 2024
Non-PE QCPP, state-administered (consistent statewide).
Mississippi
ASHRAE 90.1-2016 · eff. Jan 2024
§6.7 commissioning mandatory (>50k sf); non-PE approved-agency path applies.
Missouri
None statewide
Major cities
- Kansas City2021 IECC · 2023
- St. Louis2018 IECC
- ColumbiaLocal IECC
Home-rule; verify each city's edition.
Montana
2021 IECC
Nebraska
2018 IECC · eff. 2020
Statewide 2018 IECC with C408 adopted unamended.
Nevada
2021 IECC
New Hampshire
2018 IECC · eff. Jul 2022
Statewide 2018 IECC with the C408 commissioning requirement intact.
New Jersey
ASHRAE 90.1-2019 · eff. Sep 2022
New Mexico
2021 IECC
New York
2025 ECCCNYS (2024 IECC / 90.1-2022) · eff. Dec 31 2025
Major cities
- New York CityNYCECC (1 RCNY 101-07)
Statewide. New York City has its own DOB commissioning rules.
North Carolina
2021 IECC (NC Energy Code)
North Dakota
2021 IECC
Ohio
2021 IECC
Oklahoma
2006 IECC (energy chapter)
Predates C408.
Oregon
ASHRAE 90.1-2022 (2025 OEESC) · eff. Jul 2025
Non-PE qualified commissioning process provider (QCPP).
Pennsylvania
2021 IECC
Major cities
- Philadelphia2021 IECC
Statewide 2021 IECC; Philadelphia enforces the same edition.
Rhode Island
2024 IECC · eff. Nov 2024
South Carolina
2009 IECC / 90.1-2007
Predates C408.
South Dakota
None statewide
Major cities
- Sioux Falls2012 IECC
- Rapid City2015 IECC
- WatertownLocal IECC
Home-rule; cities on a 2012/2015 IECC carry C408. Confirm the city's edition (2009 IECC predates C408).
Tennessee
2021 IECC
Texas
2015 IECC (statewide floor)
Major cities
- Austin2021 IECC
- Dallas2021 IECC
- Houston2021 IECC
- San Antonio2021 IECC
Statewide 2015 IECC (has C408); major metros on 2021 IECC.
Utah
2021 IECC
Unamended commercial.
Vermont
2021 IECC basis
Virginia
2021 IECC + 90.1-2019 · eff. Jan 2024
Washington
2021 WSEC-C
Amended C408: commissioning must be led by an independent ISO/IEC-17024 certified commissioning professional.
Washington DC
2017 DCECC (90.1-2013) + DC-GCC
DC-GCC green-code regime: commissioning providers must hold a DOB Third-Party (Tertius) pre-authorization; applies to most projects over 10,000 sf.
West Virginia
ASHRAE 90.1-2013
Wisconsin
2021 IECC
Wyoming
None statewide
Major cities
- Jackson / Teton County2012 IECC
Sparse local adoption: only Jackson/Teton County on 2012 IECC (C408); most of the state has no energy code.
Preliminary guidance, not legal or code advice. Code applicability and acceptance of the commissioning authority are ultimately determined by the local authority having jurisdiction, and confirmed for each project.
Where we work
Commissioning where our path is recognized: 48 states.
Highlighted states have a recognized commissioning path based on our current research. Code applicability and acceptance of the commissioning authority are ultimately determined by the local authority having jurisdiction, and confirmed for each project.
Code-driven commissioning is available in 48 states. California, Washington, and Washington DC use separate credential regimes. Contact us to discuss options there.
Let's talk about your building.
Tell us what you're trying to accomplish. We'll follow up to scope a fit.