COVID-19 Contingency Related Differences (CCRD)

With reference to State Letter AN 11/55-20/50, a CCRD sub-system has been created in the existing Electronic Filing of Differences (EFOD) system to capture any differences from ICAO Standards on certification and licensing that may arise from mitigation measures due to the COVID-19 pandemic. It is accessible via the USOAP dashboard.

As a result of the CCRD expansion, the Standards in the CCRD have been classified as "Core" and "Extended". The Core CCRD contains the original nine Standards identified to capture any differences from ICAO Standards on certification and licensing. The Extended CCRD contains additional Standards, as requested by States, to capture any other differences from ICAO Standards. 

States can notify their temporary differences for either Core or Extended CCRDs:

1. Core CCRDs

a)  via the CCRD sub-system accessible through the EFODs dashboard; or

b) by filling up and sending the off-line Core CCRD form, available for download below, by email to


2. Extended CCRDs

         a) via the CCRD sub-system accessible through the EFODs dashboard; or

b) by filling up and sending the off-line Extended CCRD template, available for download below, by email to


Please note that to add an additional Standard to the Extended CCRD, you need to use the off-line template. Subsequent updates or if the Standard is already included in the Extended CCRD, it will be accessible through the EFODs dashboard.

There is no restriction on who can fill out the off-line form. However, it may only be submitted by the National Continuous Monitoring Coordinator (NCMC) or an authorized user from a Member State, who are responsible for ensuring the accuracy of the information provided.

CLICK HERE to download the Core CCRD Off-line Form, including instructions for completion.

CLICK HERE to download the Extended CCRD Template, including instructions for completion.


ICAO has been made aware of two types of alleviations being conducted by Member States. While many of these alleviations fall under what is permissible by the relevant Standards, others do not.

Alleviations that are permissible by the relevant Standards are those where the Standard has a statement such as "… established by that State". In accordance with guidance in the Safety Oversight Manual (Doc 9734) any exemption or exception should only be granted based on a safety risk analysis with a robust rationale and they should be temporary in nature.

Alleviations that are not permissible by the relevant Standards are those that have a specific requirement. For example, medical certificates. The Standard specifies that the period of validity of a medical assessment may be extended, at the discretion of the Licensing Authority, up to 45 days. Any extension beyond 45 days does not meet the minimum requirements of Annex 1 – Personnel Licensing, and therefore Member States have no obligation under Article 33 of the Convention to recognize them as valid.

To participate in international navigation with a medical certificate that does not meet the minimum Standards, in accordance with Article 39 of the Convention, the medical certificate would need to be accompanied by a complete enumeration of the particulars in which it does not satisfy the provisions. In this case, the particulars would need to address the specific differences related to the validity period of the certificate. Furthermore, in accordance with Article 40 of the Convention, no personnel having such a certificate would be able to participate in international navigation, except with the permission of the State or States whose territory is entered.

The Core CCRD sub-system of the EFOD system will allow States to file a temporary difference and at the same time indicate what they would find acceptable to facilitate international operations and meeting the obligations under Article 40 for specific Standards.


Any other Standard, as requested by a State, and not included in the Core CCRD can be added as an Extended CCRD. They only contain COVID-19 related mitigation measures resulting in differences to Standards taken by some States. This initial list may be expanded as other provisions are identified.



The information is accessible via the USOAP dashboard. In addition, the information received will be published in 2 regularly updated reports: 

1. Report providing Core CCRD information grouped by States and territories  CLICK HERE

2. Report providing Core CCRD information grouped by Standards CLICK HERE

3. Report providing Extended CCRD information CLICK HERE

4. A CCRD graphical interface has been kindly developed by IATA and available HERE

These reports were last updated on 30 June 2021.

Share this page: