Insights
Practical guidance on GHG verification, the Clean Fuel Regulations, CORSIA and emissions data, from the KeeWee team.
Comprehensive Guide to Assurance and Verification Conclusions: Unmodified, Emphasis of Matter, Modified, Adverse, and Disclaimer
A practical reference for GHG verifiers and sustainability assurance practitioners. It explains the five types of assurance conclusion: unmodified, emphasis of matter, qualified, adverse and disclaimer. For each type it covers when it applies, standard wording for both reasonable and limited assurance, and the clause references in ISSA 5000, ISO 14064-3, ISO 14065 and ISO/IEC 17029. It also includes a decision matrix and a decision tree based on materiality and pervasiveness.
By Minxing SiRead article →AIPEMSBuild a PEMS with Claude or Copilot — no code, no cost
Building a PEMS used to mean hiring someone who could write the model. We built one on real plant data using Claude, and recorded every step. Four short videos show the workflow: preparing the data, describing the objective in plain English, and checking the results against the training scores.
By KeeWeeRead article →CFRGHGVerificationEvolving Compliance: In-Depth Insights from the 2024 Clean Fuel Regulations Verification Review
A breakdown of ECCC’s 2024 review of Clean Fuel Regulations, highlighting key compliance insights, verification challenges, and recommended best practices.
By KeeWeeRead article →CFRGHGVerificationMastering the Clean Fuel Regulations: In-Depth Lessons from the 2022 Verification Review
ECCC's 2022 CFR verification review uncovered critical gaps and best practices across 55 credit-creation reports. Here's what verifiers and compliance officers need to know to strengthen future reporting.
By KeeWeeRead article →CORSIAISCCSAFCORSIA – Sustainable Aviation Fuel
Understand how SAF meets CORSIA requirements through lifecycle emissions calculations, ILUC determination, emission credits, and verified reporting frameworks.
By Minxing SiRead article →CORSIAISCCSAFUsing Offsets Under CORSIA: CORSIA Eligible Emissions Units (EEUs)
A technical overview of CORSIA offsetting, explaining how CORSIA Eligible Emissions Units (EEUs) are calculated, weighted, and cancelled across compliance cycles using ICAO’s offset equation.
By Minxing SiRead article →