---
title: "CORSIA: What are the key dates for airlines?| OpenAirlines"
description: "CORSIA: Learn about the key dates and requirements for airlines to monitor and offset CO2 emissions for international flights. Get the timeline now."
image: https://blog.openairlines.com/hubfs/Global%20CORSIA%20timeline-web.jpg
---
[](https://www.openairlines.com/)
- [Home](https://www.openairlines.com/)
- 360° eco-flying platform
- [SkyBreathe® Analytics – Fuel management software](https://www.openairlines.com/fuel-management-software/)
- [+ Emissions Report module](https://www.openairlines.com/fuel-management-software/report-co2-emissions/)
- [+ Advanced Trajectory module](https://www.openairlines.com/fuel-management-software/advanced-trajectory-module/)
- [SkyBreathe® MyFuelCoach – Pilot engagement app](https://www.openairlines.com/pilot-engagement-app/)
- [SkyBreathe® OnBoard – Real-time eco-flying app](https://www.openairlines.com/real-time-eco-flying-app/)
- [SkyBreathe® APM – Aircraft Performance Monitoring](https://www.openairlines.com/aircraft-performance-monitoring/)
- [SkyBreathe® OTP – On-time performance analysis](https://www.openairlines.com/on-time-performance-analysis/)
- Use Cases
- [SkyBreathe For CEO/CFO](https://www.openairlines.com/for-ceo-cfo/)
- [SkyBreathe For Head of Flights Ops & Chief Pilot](https://www.openairlines.com/for-head-of-flights-ops-chief-pilot/)
- [SkyBreathe For Pilots](https://www.openairlines.com/for-pilots/)
- [SkyBreathe For Fuel Managers & Ops Engineers](https://www.openairlines.com/for-fuel-managers-ops-engineers/)
- [Customers Stories](https://www.openairlines.com/customers/)
- Resources
- [Blog](https://blog.openairlines.com/)
- [White Papers](https://blog.openairlines.com/tag/white-paper)
- [Case Studies](https://blog.openairlines.com/tag/case-studies)
- [Webinars on fuel efficiency](https://blog.openairlines.com/tag/upcoming-webinars)
- [Upcoming Tradeshows](https://blog.openairlines.com/tag/tradeshow)
- [OpenAirlines Academy](https://academy.openairlines.com/?utm_campaign=23545222-Academy&utm_source=FuelEfficiencyBlog)
- Company
- [OpenAirlines Mission](https://www.openairlines.com/our-company/)
- [News](https://blog.openairlines.com/news)
- [Career - We are Hiring!](https://www.welcometothejungle.com/fr/companies/openairlines)
- [Sustainability Report](https://www.openairlines.com/sustainability-report/)
- [OpenDay](https://info.openairlines.com/openday2026)
- [Contact](https://www.openairlines.com/contact/)
[](https://cta-redirect.hubspot.com/cta/redirect/4233951/5390e83d-eea4-4183-83a3-0f26b0324d37)
##### Blog
- [Latest articles](https://blog.openairlines.com)
- [Fuel Efficiency](https://blog.openairlines.com/tag/fuel-efficiency)
- [Airline Experience](https://blog.openairlines.com/tag/airline-experience)
- [Sustainability](https://blog.openairlines.com/tag/environment)
- [Technology](https://blog.openairlines.com/tag/technology)
- [News](https://blog.openairlines.com/news)
[Back to Blog](https://blog.openairlines.com)
# \[Infographic\] CORSIA: What are the key dates for airlines?
Published by [Cécile](https://blog.openairlines.com/author/cecile) on Apr 23, 2018, 3:19:21 PM
From 2019 onwards, airlines need to monitor their CO2 emissions for international flights and submit them to their representative state. But you probably wonder what’s the global CORSIA timeline? When do airlines need to prepare? What are the key dates?
Let’s focus on the timeline of the scheme with this infographic:
##### KEY CORSIA PHASES
- **The baseline period** will establish the 2020 baseline used to calculate the offsetting obligations of every airline. This baseline is the average of 2019-2020 emissions on covered routes. The list of covered routes and hence the baseline will be updated every year as more states join the scheme.
- **Voluntary states: **73 states representing 87.7% of international flights, will enter the scheme in 2021. And the **mandatory** period will start in 2027.
##### CORSIA TIMELINE FOR AIRLINES
Airlines will have MRV requirements every year, covering ALL international civil flights (reporting scope). But they will need to offset emissions every 3 years only for flights between participating states (offsetting scope).
**It is important to note that the offsetting scope is to be updated every year based on participating states but that the base for computations remains the 2019-2020 period, hence the obligation of monitoring ALL flights during this period even if your state does not participate in the voluntary phase.**
---
##### READ MORE
You want to go further on CORSIA? Download the white paper:
[](https://cta-redirect.hubspot.com/cta/redirect/4233951/8603b0cf-698a-4280-93d3-4268c12d3481)
Tags: [CORSIA](https://blog.openairlines.com/tag/corsia)
[Back to Blog](https://blog.openairlines.com)
[](http://www.facebook.com/share.php?u=https://blog.openairlines.com/infographic-corsia-key-dates-airlines&utm_medium=social&utm_source=facebook) [](https://twitter.com/intent/tweet?original_referer=https://blog.openairlines.com/infographic-corsia-key-dates-airlines&utm_medium=social&utm_source=twitter&url=https://blog.openairlines.com/infographic-corsia-key-dates-airlines&utm_medium=social&utm_source=twitter&source=tweetbutton&text=) [](http://www.instagram.com/share.php?u=https://blog.openairlines.com/infographic-corsia-key-dates-airlines&utm_medium=social&utm_source=instagram) [](http://www.linkedin.com/shareArticle?mini=true&url=https://blog.openairlines.com/infographic-corsia-key-dates-airlines&utm_medium=social&utm_source=linkedin) [](https://web.whatsapp.com)
## Related Articles
## [Introducing a new e-learning course on fuel efficiency!](https://blog.openairlines.com/introducing-a-new-e-learning-on-fuel-efficiency)
OpenAirlines is excited to announce the launch of a brand-new e-learning course: "Fuel efficiency...
[Read More](https://blog.openairlines.com/introducing-a-new-e-learning-on-fuel-efficiency)
## [\[CASE STUDY\] How Azul Airlines achieved up to + 2% monthly pilot extra fuel savings](https://blog.openairlines.com/engaging-pilots-in-fuel-efficiency-at-azul-airlines)
Fuel efficiency is not just about reducing costs, it’s a company-wide transformation. Azul...
[Read More](https://blog.openairlines.com/engaging-pilots-in-fuel-efficiency-at-azul-airlines)
## [How can airlines cut weight to boost flight efficiency](https://blog.openairlines.com/how-can-airlines-boost-flight-efficiency-by-reducing-commercial-weights)
In the aviation world, where every ounce of weight translates to increased fuel burn and...
[Read More](https://blog.openairlines.com/how-can-airlines-boost-flight-efficiency-by-reducing-commercial-weights)
[](https://www.openairlines.com/)
EUROPE - HEADQUARTERS
31, rue Alsace Lorraine – 31000 Toulouse, France
ASIA
10 Floor, Guangdong Investement Tower
148 Connaught Road Central, Hong Kong
AMERICAS
c/o Jade Fiducial 990 Biscayne Blvd Office
701 Miami, FL33132 USA
- SkyBreathe® Platform
- [SkyBreathe® Analytics – Fuel management software](https://www.openairlines.com/fuel-management-software/)
- [SkyBreathe® MyFuelCoach – Pilot engagement app](https://www.openairlines.com/pilot-engagement-app/)
- [SkyBreathe® OnBoard – Real-time eco-flying app](https://www.openairlines.com/real-time-eco-flying-app/)
- [SkyBreathe® APM – Aircraft Performance Monitoring](https://www.openairlines.com/aircraft-performance-monitoring/)
- [SkyBreathe® OTP – On-time performance analysis](https://www.openairlines.com/on-time-performance-analysis/)
- Use Cases
- [SkyBreathe® For CEO/CFO](https://www.openairlines.com/for-ceo-cfo/)
- [SkyBreathe® For Head of Flights Ops & Chief Pilot](https://www.openairlines.com/for-head-of-flights-ops-chief-pilot/)
- [For Fuel Managers & Operations Engineers](https://www.openairlines.com/for-fuel-managers-ops-engineers/)
- [SkyBreathe® For Pilots](https://www.openairlines.com/for-pilots/)
- [Customers Stories](https://www.openairlines.com/customers/)
- [Our Company](https://www.openairlines.com/our-company/)
- [Sustainability Report](https://www.openairlines.com/sustainability-report/)
- [Career](https://www.welcometothejungle.com/fr/companies/openairlines)
- [Contact](https://www.openairlines.com/contact/)
- Resources
- [Blog](https://blog.openairlines.com/)
- [White papers](https://blog.openairlines.com/tag/white-paper)
- [Case Studies](https://blog.openairlines.com/tag/case-studies)
- EVENTS
- [OpenDay](https://info.openairlines.com/openday)
- [Upcoming Webinars](https://blog.openairlines.com/tag/upcoming-webinars)
- [Upcoming Trade Shows](https://blog.openairlines.com/tag/tradeshow)
### © Openairlines 2023 - All Rights Reserved
- [Privacy Policy](https://www.openairlines.com/privacy-policy/)
- [Cookies Policy](https://www.openairlines.com/cookies-policy/)
- [Site Map](https://www.openairlines.com/site-map/)
```json
{
"@context" : "https://schema.org",
"@type" : "BlogPosting",
"author" : {
"@type" : "Person",
"name" : "Cécile",
"url" : "https://blog.openairlines.com/author/cecile"
},
"dateModified" : "2023-09-22T08:33:37.374Z",
"datePublished" : "2018-04-23T13:19:21.000Z",
"headline" : "CORSIA: What are the key dates for airlines?",
"image" : [ "https://blog.openairlines.com/hubfs/Global%20CORSIA%20timeline-web.jpg" ],
"mainEntityOfPage" : {
"@id" : "https://blog.openairlines.com/infographic-corsia-key-dates-airlines",
"@type" : "WebPage"
},
"publisher" : {
"@type" : "Organization",
"logo" : {
"@type" : "ImageObject",
"url" : "https://blog.openairlines.com/hubfs/Blog-illustration/Logo.png"
},
"name" : "Nextops OpenAirlines"
}
}
```