Chapter 01 · Climate & transitionCarbon Markets & Offsetting

Measurement, reporting and verification (MRV)

Meaning statusEmergingSource recordDirect document linkedWhy these are different

Definition

Measurement, reporting and verification is the system used to quantify, document, review and confirm emissions, reductions, removals or other performance claims.

References

International Organization for Standardization (ISO)ISO 14064-1:2018 — Organization-level quantification and reporting of greenhouse gas emissions and removals

This reference provides supporting context for how “Measurement, reporting and verification (MRV)” is defined and used.

Overview

What it means in practice

Measurement, reporting and verification should be read as a decision term, not simply as a label. Its practical meaning depends on the boundary being assessed, the accounting or governance purpose, and the evidence used to support the claim.

In practice, users should ask what is being measured or governed, who is relying on the term, and what would change if the term were applied differently. That discipline keeps measurement, reporting and verification from becoming a shorthand that hides assumptions.

Why it matters

Carbon-market terminology can create a false sense of precision when units, claims and accounting boundaries are not separated. Measurement, reporting and verification matters because it affects whether a climate claim is traceable, exclusive and proportionate to the evidence behind it.

Common misconception

A common error is to treat measurement, reporting and verification as proof of climate benefit by itself. The stronger approach is to identify the programme rules, accounting boundary, ownership trail and claim being made.

Review questions

What boundary does the term cover? What evidence would prove or narrow the claim? Who could reasonably misunderstand the term if the context is not stated?

How it is used

Governments, companies, investors and technical teams use “Measurement, reporting and verification (MRV)” in climate strategies, transition plans, emissions inventories, scenarios and investment decisions. In each case, the user should state the relevant methodology, emissions boundary, baseline, timeframe and underlying data; otherwise, the same term may be applied to materially different situations.

In this context, it refers to the system used to quantify, document, review and confirm emissions, reductions, removals or other performance claims.

Have evidence, context, or a correction to share? Every suggestion is considered by an editor before publication.

Meaning status
Emerging
Last verification recorded
22 Aug 2026
Last updated
22 Aug 2026
What the classifications mean

Meaning status: Emerging

EstablishedMultiple definitionsContestedEmergingCurrentIndexed