Article 57 Chicago Convention (Convention on International Civil Aviation)
Duties of Commission
The Air Navigation Commission shall:
(a) Consider, and recommend to the Council for adoption, modifications of the Annexes to this Convention;
(b) Establish technical subcommissions on which any contracting State may be represented, if it so desires;
(c) Advise the Council concerning the collection and communication to the contracting States of all information which it considers necessary and useful for the advancement of air navigation.
See also: Article 56 Chicago Convention