01 / 04The refusal is the product
The tool is designed to refuse any figure that rests on indefensible inputs: incompatible units, an ineligible factor, or an undocumented conversion rule — with two independent refusal layers, in the application and in the database.
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02 / 04Every number has a trail
Evidence → Observation → Activity → Factor → Calculation → Trace → Report. Every published figure traces step by step back to its source document — no orphan numbers, no mystery cells.
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03 / 04Governed emission factors
Every factor is a governed object with a source, version, vintage, geography, and eligibility state. The formula follows the factor's basis: applying GWP to a CO2e factor is a blocking error, and units are case-sensitive (mg ≠ Mg).
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04 / 04The decision stays human
Transaction review is an independent human decision, recorded under its owner's name and date. Automation organizes data and surfaces gaps — it never signs off.
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