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23One outcome, clear records

Double counting and carbon credits

The different ways an outcome can be issued, transferred, used, or claimed more than once—and why records and claim context both matter.

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01CarbonBlaze explainer

What double counting and carbon credits is about

Double-counting concerns can arise when a unit is issued more than once, transferred or retired without a clear record, or used in overlapping claims. Registry systems, serial identifiers, rules, and claim context can help readers follow what a record does and does not show.

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What the label cannot settle on its own

A registry status alone does not settle every claim question, especially where public statements, national accounting, or international transfers are involved. The relevant program rules and the exact wording of a claim remain important context.

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Questions that keep the evidence trail open

Which registry or system records the unit? Is there a visible identifier and status? Who makes the claim, about what period and boundary? Does a policy or international-accounting context apply?

Common questions

Does this guide rate a credit or project?

No. It explains the topic and suggests questions; quality and claim conclusions require project-specific evidence and appropriate review.

Is this legal, financial, tax, or procurement advice?

No. CarbonBlaze provides general educational material. Decisions should use applicable rules, primary sources, and qualified advice where needed.