Greenhouse Gas Verification Services

Yorke Engineering, LLC (Yorke) has performed hundreds of projects related to the state and federal greenhouse gas (GHG) regulations. This includes the California Air Resources Board (CARB), Washington State Department of Ecology (Department of Ecology), and Oregon Department of Environmental Quality (DEQ) GHG verification and guidance through the GHG verification process. We have 10 CARB-accredited GHG lead verifiers, five Department of Ecology-certified GHG lead verifiers, and four Oregon DEQ-approved GHG lead verifiers on staff who have prepared over 300 GHG reports and verifications. Yorke is also a CARB-accredited, Department of Ecology-certified, and Oregon DEQ-approved GHG verification body.

CARB and U.S. EPA GHG Reporting

• GHG Monitoring Plan development and audit;
• GHG emissions data review;
• GHG emission calculations;
• Online GHG report preparation and submittal assistance;
• Abbreviated GHG reporting; and
• CARB and Department of Ecology GHG verification support (when verification is not performed by Yorke).

CARB, Department of Ecology, and Oregon DEQ GHG Emissions Report Verification

• Verification of General Combustion, Transaction, Oil and Gas, and Process GHG Reports;
• Evaluation of Conflict of Interest;
• Verification Planning Meetings;
• CARB, Department of Ecology, and Oregon DEQ Compliance Analysis;
• Development of Verification and Sampling Plans and Verification Report; and
• Submittal of Verification Statement.

GHG Inventories, Footprints, and Plans

More local, state, and national agencies, as well as consumers, are pushing for transparency in company and facility GHG emissions and inventories. Yorke has experience in producing inventories and reports for:

• City and County inventory preparation;
• City and County plans and protocols, including Climate Action Plans;
• Scope 1, 2, and 3 GHG emission calculations and footprints;
• Corporate carbon footprint using U.S. EPA and World Resource Institute GHG protocols and Intergovernmental Panel on Climate Change (IPCC) Standards; and
• California Environmental Quality Act (CEQA) Air Quality GHG Technical Reports.

Federal, State, and Local GHG Planning

• CARB Cap-and-Trade support;
• Regulatory compliance analyses;
• Compliance Instrument Tracking System Service (CITSS) registration assistance and trading support; and
• GHG Allowance and Obligation calculations and determination of facility balance.