ICAO Annex 1 Personnel Licensing. Ed 13 July 2020
Annex 1 contains Standards and Recommended Practices adopted by the International Civil Aviation Organization as the minimum standards for personnel licensing.
The Annex is applicable to all applicants for and, on renewal, to all holders of the licences and ratings specified herein.
The Council has decided that, in principle, amendments affecting existing licensing specifications are applicable to all applicants for, and holders of, licences but, in considering their application to existing holders of licences, the assessment, if necessary, by re-examination of the knowledge, experience and proficiency of individual licence holders is left to the discretion of Contracting States.