States issue licences in accordance with the recommended practices of annex 1 of the International Civil Aviation Organisation.
Not quite, prince of demons...
Annex 1 to the Convention on International Civil Aviation contains the Standards and Recommended Practices adopted by the International Civil Aviation Organization as the minimum standards for personnel licensing.
Therefore what you
should have said was:
Contracting States should issue licences in accordance with the standards and recommended practices of Annex 1 to the Convention on International Civil Aviation.