This asks an organisation to report a full emissions inventory, rather than a partial or selective picture. In practice, that means identifying and quantifying the greenhouse gas emissions that arise from the organisation’s activities and sources, so the report reflects the organisation’s overall emissions profile in a consistent way.
The practical focus is coverage: the inventory should be broad enough to capture emissions across the organisation’s operations, not just a few flagship sites or the easiest-to-measure locations. The aim is to give users a complete basis for understanding where emissions come from and how material parts of the business are represented in the reporting.
This LRA educational guidance supports disclosure preparation. For the exact requirements, always refer to the official MOCCAE source.
A quick mental checklist before you prepare this disclosure — tick each as you settle it.
Key datapoints to prepare
How to prepare it
Request the emissions inventory data from EHS / Operations
Translate the disclosure into an internal business question — then adapt it to your organisation's own language.
Use your organisation’s own terms first, then map them to the reporting fields. For example, if your teams talk about sites, plants, lines, utilities, refrigerants, or process vents, use those labels in the request and only translate them into the reporting categories when you compile the response.
Please provide the comprehensive emissions inventory in line with the disclosure.
Why it fails: This uses framework language that many operational owners will not recognise, so it is easy to answer with the wrong level of detail or miss the internal source data needed to build the inventory. It also does not say which systems, sites, gases, or source categories to pull from.
Please send the emissions inventory from your normal EHS / site tracking records for [base year / reporting period], showing the total tCO2e, the split by gas, and the split by site or process, together with the boundary, source system, calculation basis, and any restatements or exclusions.
Notes that turn data into a disclosure
LRA training templates — adapt them to your organisation, and check the official source before sign-off.
State which year is being used as the starting point, explain how the gases and sources were grouped, and note the basis used to calculate the totals.
Explain what the overall figure means by linking it to the chosen baseline, the gas mix, and the main facilities or processes driving the result.
If the total has moved materially, point to the main operational, source-level or gas-level changes that drove the difference from the earlier period.
Preparation tools & forms
Professional preparation tools for Art.6(1)(a)-2 — free with an LRA Community membership. Register once (it's free) and every download unlocks, together with the Disclosure Library, templates and the LRA AI-assistant.
For each claim, check the evidence
Evidence pack to prepare
Common reporting gaps
Mistakes to avoid when collecting the data
Where judgement is often needed
Illustrative examples
Synthetic, written by LRA — not from a company report, not text from any standard.
We set out our starting-year emissions and the latest total for our operations, using a simple split by greenhouse gas and by main site/process so the figures can be traced through our records. - Base year: 2022, with 48,000 tCO2e in that reference year. - Latest year total: 2024, with 45,600 tCO2e overall; by gas this was 41,040 tCO2e of carbon dioxide, 3,648 tCO2e of methane, and 912 tCO2e of nitrous oxide. - By source, the total was made up of 28,500 tCO2e from our main production line, 9,600 tCO2e from the heat and power plant, and 7,500 tCO2e from logistics and warehousing.
This example shows a plain-language way to present the reference-year figure, the latest total, and a breakdown that can be followed both by gas and by operational source. The numbers are internally consistent and illustrative only.
We report our reference-year emissions alongside the current total, then break the current figure down by gas and by the main parts of our network so the source of the emissions is clear. - Base year: 2021, with 12,400 tCO2e in that year. - Latest year total: 2024, with 11,860 tCO2e overall; by gas this was 10,674 tCO2e of carbon dioxide, 948 tCO2e of methane, and 238 tCO2e of nitrous oxide. - By source, the total was made up of 6,900 tCO2e from stores, 3,200 tCO2e from distribution centres, and 1,760 tCO2e from delivery vehicles.
This example uses a different sector and a different set of figures, while still showing the reference-year amount, the latest total, and a complete split by gas and by source. The figures are synthetic and add up consistently.
How companies report Art.6(1)(a)-2 in practice
Real reports where this topic is disclosed. These are report practice, not exact disclosure templates to copy.

Scenarios to work through
A manufacturing site has one main boiler, a backup generator, and a small solvent line. The preparer has the annual total in tCO2e, but the source file only groups everything together and does not separate the gases or the individual source areas.
A group has two production sites. Site A is fully measured, but Site B is still being estimated from utility bills and production records. The preparer is unsure whether to wait until every estimate is refined before drafting the disclosure.
A services company has only one office and one fleet of vehicles. The preparer plans to report a single total emissions figure and says the gas split is unnecessary because the business is small and the emissions come from only one place.
A preparer has last year’s base-year figure, this year’s total, and a note saying the emissions are mainly from the factory and the delivery fleet. However, the gas split was copied from an old spreadsheet and no one can trace it back to source records.
Related framework references
How this disclosure maps across the major reporting frameworks.
Questions this page answers
The page says to prepare four datapoints: base year total, emissions by gas, emissions by source, and total emissions. Use the plain-language explainer and the step-by-step preparation section to turn those into a draft.
Use it as a working sequence for collecting the required datapoints, checking the scope and method, and then shaping the disclosure. The page is designed to help you move from raw data to a draft output.
The page includes an evidence pack with five items to support assurance readiness. Use it alongside the four assurance claims to verify so you can show where the numbers came from and how they were prepared.
The page gives four claim/risk/evidence checks to help you test the disclosure before assurance. Treat them as a practical review list to spot gaps in the data, method, or supporting evidence.
The page lists common gaps and mistakes so you can check your draft before sign-off. Use that section to catch missing datapoints, weak evidence, or inconsistent presentation early.
The page includes synthetic illustrative example disclosures, including a quantitative table, to show what a finished draft can look like. Use them as a formatting and content guide only, not as real reporting data.
The page has a draft-output section with visualisation ideas, narrative starters, and a content-index line. Those tools are there to help you convert prepared data into a first draft more efficiently.
The Download Centre includes a Prep & Assurance workbook in .xlsx format and a printable Library Card in .pdf format. Use the workbook to organise preparation and assurance checks, and the card as a quick reference.
The page is written for sustainability/ESG managers, HR or data owners, and assurance reviewers, so ownership can sit with the team that controls the underlying data and draft. Use the preparation and evidence sections to agree who collects, checks, and signs off each part.
The page notes ESRS E1 (Climate Change) as the closest correspondence, so the data may be reusable across workflows. That does not mean the requirements are identical, so use the page as a practical bridge rather than a substitute for the other framework.
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