What Is a Carbon Passport? Everything European Suppliers Need to Know

What Exactly Is a Carbon Passport?

A carbon passport is a verified digital record of a company's greenhouse gas (GHG) emissions — covering Scope 1 (direct combustion), Scope 2 (purchased electricity), and the most material Scope 3 categories (upstream fuel, waste, and business travel). It gives the holder a permanent, shareable URL that procurement teams and sustainability auditors can use to verify the underlying data.

The concept borrows from the idea of a travel passport: a single, universally recognised document that proves something about the holder. In this case, it proves your company's verified emissions profile.

Unlike a full sustainability rating (such as EcoVadis), a carbon passport focuses narrowly on the GHG data that enterprise CSRD compliance questionnaires actually require.

What Does a Carbon Passport Contain?

A standard carbon passport includes:

• Company name, VAT number, industry, and country
• Reporting year — the full calendar year the data covers
• Scope 1 total (tCO2e) — combustion of gas, diesel, petrol, LPG, and refrigerant leakage
• Scope 2 total (tCO2e) — purchased electricity, adjusted for any renewable energy tariff
• Scope 3 total (tCO2e) — upstream fuel extraction (WTT), waste, business travel, and commuting
• Calculation methodology — GHG Protocol Corporate Standard with DEFRA 2023 emission factors
• Verification status — self-assessed or third-party reviewed
• Permanent verification URL — a unique link that procurement portals can record and re-check

DeCarbonOPS Carbon Passports include all of the above and remain publicly accessible for the lifetime of the account.

Who Accepts a Carbon Passport?

Enterprise procurement systems that recognise carbon passport data:

Most procurement teams accept a direct verification link plus a PDF summary. External auditing is not typically required for initial supplier qualification — though this is changing as CSRD enforcement tightens.

Is a Carbon Passport the Same as a Carbon Footprint Report?

No. A carbon footprint report is the full underlying document — often 20–50 pages covering methodology, data sources, assumptions, and calculations. A carbon passport is the executive summary of that report, formatted specifically for sharing with third parties who need to verify your emissions data quickly.

Think of it this way: the full report is like your company accounts. The carbon passport is like the one-page accounts summary you hand to a lender.

DeCarbonOPS generates both from the same data entry — the full methodology is stored in your account, the passport is the shareable output.

How Is a Carbon Passport Different from EcoVadis?

This is the most common comparison. Here is the honest breakdown:

For most SME suppliers receiving their first sustainability questionnaire, a carbon passport answers the question completely at a fraction of the cost and time. See the full comparison.

How Long Does It Take to Get a Carbon Passport?

With DeCarbonOPS, 15–25 minutes — depending on how readily available your utility bills and travel records are. The steps:

1. Create a free account
2. Enter your electricity and gas consumption for the reporting year
3. Add diesel/petrol, business travel, waste, and commuting estimates
4. Review your calculated Scope 1, 2, and 3 totals
5. Generate your passport — your permanent verification URL is live immediately

There is no waiting period and no approval queue. Your first annual report is free.