Air operators with CORSIA obligations
Every aeroplane operator attributed to a State for the purposes of CORSIA — 690 operators across 135 States. Search by operator or country, group and filter, sort any column.
Source: ICAO, CORSIA Aeroplane Operator to State Attributions, 10th Edition, 19 December 2025 · extracted from the document, not from ICAO’s searchable page
Read this before you use any number on this page
For 347 of the 690 operators, the last column is built from ICAO’s own published figure for that operator — its 2024 CO2 on State pairs subject to offsetting, from CCR Part III Table 2, multiplied by the Sector’s Growth Factor. Not an estimate, and not a country total.
For the other 343 there is no published per-operator figure, and each row says which reason applies: the State marked it confidential (146), the State never submitted an emissions report so ICAO gap-filled its State totals (40), or the operator has no row in Table 2 (157). Those rows fall back to the country pool, shared with every other operator on those routes including foreign carriers.
Even a published figure is not your notified obligation. Your State issues that privately by 30 November, calculated from your verified emissions report and reduced by any CORSIA eligible fuels. This page gives you its main input, not its output.
What is published, and is reproduced here exactly: which operators are attributed to which State, each operator’s own CO2 where its State submitted it, what CO2 flew on each State pair, and the Sector’s Growth Factor. All four come from ICAO documents, linked at every table.
What is estimated, and is labelled as such everywhere it appears: the country-level figures. They are route CO2 × a home-carrier share × the SGF. The carrier share is a judgement, it is shown on the face of every estimate, and it moves the answer more than anything else in the calculation. Treat every estimate as a range, not a number, and never as a compliance position.
Independent analysis by Carbon Market India from published ICAO and DGCA sources. Not affiliated with, endorsed by, or verified by ICAO. Not compliance advice.
There is no per-operator target, but there is a published per-operator number. CORSIA sets no intensity or absolute target per airline the way India’s GEI rules do for steel or cement. What ICAO does publish, in CCR Part III Table 2, is each operator’s own annual CO2, split into the part subject to offsetting and the part not — for every operator whose State submitted an emissions report and did not mark it confidential. Multiply the first by the Sector’s Growth Factor and you have that operator’s offsetting requirement before eligible fuels. That is what the last column does, for 347 of 690 operators.
Operator type is not in the source either. The ICAO document records State, operator name, attribution method and identifier — not whether an operator is scheduled, charter, cargo or business aviation. Grouping here is by State and by attribution method, which are in the data. Sorting 690 operators into categories by reading their names would look like data and be guesswork.
An asterisk means the State did not submit information for the latest year — 41 of 135 States. It is ICAO’s flag, reproduced as published.
What each phase requires, and by when
| Phase | Years | Who is in | Where it stands |
|---|---|---|---|
| Pilot phase | 2021 – 2023 | States that volunteered. Offsetting applied only between volunteering States. | Closed. First three-year compliance cycle. |
| First phase | 2024 – 2026 | Volunteering States — the pilot volunteers plus any State that joined. | RUNNING. 2026 is the last year; the cycle reconciles after it. |
| Second phase | 2027 – 2035 | ALL States above 0.5% of 2018 international RTKs, or inside the cumulative 90% of RTKs — except LDCs, SIDS and LLDCs unless they volunteer. | Participation stops being a choice for most States. |
Source: ICAO Assembly Resolution A42-22, paragraphs 9 and 13–15
The dates an operator diaries
| When | What | Detail |
|---|---|---|
| Every year, 31 May | Verified emissions report to your State | For the previous calendar year. Annual, regardless of which phase. Annex 16 Vol IV procedure — not a free document; not read here |
| Each 31 October | ICAO publishes the Sector’s Growth Factor | For the year two calendar years earlier — the 2024 SGF appeared on 31 October 2025 and was revised on 12 December 2025. The 2025 SGF is due 31 October 2026; the 2026 SGF on 31 October 2027. ICAO CORSIA Annual Sector’s Growth Factor, 4th ed Rev.1 |
| Each 30 November | Your State tells you your offsetting requirement | Calculated by the State from your verified emissions and the SGF. This is the first time an operator sees its own number. Annex 16 Vol IV procedure — not a free document; not read here |
| 30 June, to join or leave | A State must notify ICAO by 30 June | Voluntary participation starts or stops only on 1 January, notified by 30 June of the preceding year. ICAO Assembly Resolution A42-22 |
| End of each 3-year cycle | Cancel units against the cycle’s requirement | Three-year compliance cycles; the first ran 2021–2023. Operators report annually but reconcile over the cycle. ICAO Assembly Resolution A42-22 |
Outside the scheme entirely
- Under 10 000 tonnes of CO₂ from international aviation per year
- Aeroplanes below 5 700 kg maximum take-off mass
- Humanitarian, medical and firefighting operations
Source: A42-22 paragraph 13
The figures are free, but not anonymous
Everything above is open, and so is the method. The CO2 columns, the country estimates and the estimator take one email address and one code — no account, no password, about a minute.
One code, valid fifteen minutes, single use. We keep your address and what you looked at — that is the point of the gate — and will delete it on request.
Work out a requirement from a tonnage of your own
For the 343 operators without a published figure, and for any year or scenario of your own. A State calculates each operator’s requirement as its CORSIA-covered CO2 multiplied by the year’s Sector’s Growth Factor. Put a tonnage in and the arithmetic is ICAO’s.
Covered is narrower than total. Only international flights between two participating States count. Domestic flights, and flights with one end in a non-participating State, are out. An estimate built on an airline’s total or Scope 1 emissions will overstate the requirement, usually by a lot.
Enter a tonnage to see the estimate.
SGF source: ICAO CORSIA Annual Sector’s Growth Factor, 4th edition Revision 1, published 12 December 2025 · SGF for 2024 = 0.15405257 · the 4th edition of 31 October 2025 gave 0.15948315 and is superseded
What changes on 1 January 2027
Four States enter the scheme at once, and none of their operators has ever had a requirement. ICAO’s States for Chapter 3 State Pairs, Edition 7 (16 July 2026), records in its own amendment table: “Added the names of Brazil, China, India and Russian Federation as per the Note in Annex 16, Volume IV, Part II, Chapter 3, Paragraph 3.1.3.” Added under the mandatory rule, not by volunteering. Edition 6, for 2026, does not list them.
Their 2024 route CO2 sits entirely in the not covered column today, because offsetting bites only when both ends of a route participate.
| State | Route CO2 2024, not covered | Scheme-wide requirement added full × SGF 15.4053% | Of which home carriers at 40% share |
|---|
Route CO2: ICAO CCR Part III, reporting year 2024 · aggregated here from 9,033 State-pair rows
Against a global 2024 requirement of 🔒 tonnes, that is an increase of about 42% — arriving in one step, into a unit market that is already short. The scheme-wide column is the one that matters for demand: once a route becomes covered, every operator flying it owes against it, including carriers already in the scheme whose flights to these four States were uncovered only because the far end was not participating. The last column is the slice that lands on the home carriers, and it is the only one the 40% apportionment applies to.
Where the number comes from, operator by operator
Every operator row carries a grade, and it is not decoration. P means ICAO publishes that operator’s own emissions and the offsets figure is built from them — 347 operators, each with a different number. The rest fall back to a country figure: all flying on that State’s routes, by everyone. How much of that belongs to any one of them depends on how many share it, and the grade says so.
Where one operator holds the State, the apportionment question disappears. 24 of the 135 States have exactly one attributed operator, and another 22 have two or three. For those the country figure is close to an operator figure, before foreign carriers are netted out. Where fifty-five operators share it, as in China, it says almost nothing about any one of them, and the grade says so.
| Grade | Operators attributed to the State | What the country figure is worth |
|---|---|---|
| P | n/a — the operator’s own figure is published · 60 States, 347 operators | ICAO publishes this operator’s own 2024 CO2 in CCR Part III Table 2. The offsets figure is that number × the SGF — not an estimate, and not a country figure. |
| A | one · 24 States, 24 operators | One operator attributed to this State — the country figure is essentially this operator’s, before foreign carriers. |
| B | two or three · 22 States, 50 operators | Two or three operators share the country figure. |
| C | four to ten · 22 States, 126 operators | Four to ten operators share the country figure. |
| D | eleven or more · 6 States, 112 operators | Eleven or more operators share the country figure — it says little about any one of them. |
| R | any — no CCR emissions row · 1 State, 31 operators | Registry State with no CCR emissions row. Most operators on an AOC-of-convenience register are business jets and charter, and likely fall under the 10,000 t exemption. |
Derived from the attributions document’s own counts · no third-party data
The 690 operators
Status key: CN covered now · J27 joins 1 Jan 2027 · NP not participating · ND not in the CCR table · A–R confidence, hover any badge for the full meaning
| Country ↕ | Aeroplane operator ↕ | Attr. ↕ | Identifier ↕ | Status ↕ | Conf. ↕ | Operator CO2 subject 🔒↕ |
Not subject 🔒↕ |
Offsets required 🔒↕× SGF 15.4% |
|---|
No operator matches that.