The Global Reporting Format (GRF) is a globally harmonized methodology for assessing and reporting runway surface conditions. The GRF was developed by the International Civil Aviation Organisation (ICAO) to help mitigate the risk of runway excursions. The GRF is applicable globally on 4 Nov. 2021
Virtual aviation learning center –
Online aviation courses – Airliner training programs – Pilot training courses – Aviation safety training – Aviation exam prep
