Basic Documents No. 2
Volume II – Meteorological Service for International Air Navigation
These Regulations are designed: (a) To facilitate cooperation in meteorology and hydrology between Members
(b) To meet, in the most effective manner, specific needs in the various fields of application of meteorology and operational hydrology in the international sphere
and (c) To ensure adequate uniformity and standardization in the practices and procedures employed in achieving (a) and (b) above.
As per Resolution 12 (Cg-19), Part I and Part II of this publication shall be discontinued with effect 31 December 2023
Part III and Part IV shall be discontinued upon the incorporation of material of continuing relevance into the Procedures for Air Navigation Services — Meteorology (PANS-MET) (Doc 10157) of ICAO (provisionally 2026).