# What goes into a CBAM monitoring methodology document?

Canonical: https://senseible.earth/answers/cbam-monitoring-methodology-document-contents

It describes how your figures are made: the installation and its production processes, every source stream and emission source, the method and factors used, where each number comes from, who checks it, and how gaps are filled. A verifier reads it first, then tests your records against it.

## Sections

- Installation, owner and location.
- Production processes and the goods in each.
- Source streams: fuels and materials, with how each is measured.
- Methods, factors and their sources.
- Data flow from meter or invoice to the final figure.
- Control checks and how missing data is handled.

## Keep it real

Write what you actually do. A document that describes meters you do not have will fail the first site visit.

## What Senseible does here

Senseible reads fuel, power and production records into dated, fingerprinted installation records, the starting point for the actual emissions your EU importer asks for.

- [Data flow diagram](https://senseible.earth/answers/verifier-asks-for-data-flow-diagram)
- [Calculation workings](https://senseible.earth/answers/verifier-asks-for-calculation-workings)

Sources: [Implementing Regulation (EU) 2023/1773, monitoring rules](https://eur-lex.europa.eu/eli/reg_impl/2023/1773/oj/eng), [European Commission, CBAM legislation and guidance](https://taxation-customs.ec.europa.eu/carbon-border-adjustment-mechanism/cbam-legislation-and-guidance_en), [European Commission, CBAM definitive regime](https://taxation-customs.ec.europa.eu/carbon-border-adjustment-mechanism/cbam-definitive-regime_en)

Last reviewed 2026-10-22.