Fourteen questions professionals ask about proving CBAM compliance — default values, carbon-price certification, quarterly certificates, delegation — each mapped to the SOURCE 0 term that answers it, and to the article it rests on.

The Carbon Border Adjustment Mechanism already has an independent verifier — the definitive regime made sure of that. What the verifier attests is a methodology over a reporting period, not the embedded emissions of the specific lot an importer clears today. SOURCE 0 closes that narrower gap.