Carbon Validation/Verification Services

AWT is accredited as a verification body by the California Air Resources Board (Executive Order H2-19-012) for livestock and mine methane projects.

Please contact Hal Langenbach ([email protected]) for no-cost proposals for verification of your projects.

AWT has received California Air Resources Board (ARB) accreditation as a Greenhouse Gas Verification Body for the following project protocols:

CARB Offset Verification

  • Dairy/Swine Digesters
  • Mine Methane Capture

CARB Low Carbon Fuel Standard (LCFS)

  • AWT Validation/Verification Credential: Executive Order H3-20-002

California Air Resources Board (ARB)/ CARB Mandatory Reporting Requirement (MRR)

AWT can verify projects under the following protocols:

Climate Action Reserve (CAR)

  • Organic Waste Composting
  • Organic Waste Digestion
  • Livestock
  • Landfill Gas
  • Climate Forward

VCS (Verra)

  • Landfill
  • Recovery and Recycling Materials From Solid Waste
  • Livestock Waste


Learn More

For more information on our carbon offset verification services, please contact Hal Langenbach at:  (919) 367-6312 or [email protected].

Get In Contact

AWT has extensive experience regarding Agricultural, Environmental, & Land Development Projects. If you put that experience to work for you we guarantee you will appreciate the difference that one-on-one service makes.

Hal Langenbach

VP of Agriculture and Environmental Services, P.E., Lead Verifier