In 2020, ICAO adopted with Amendment 15 to Annex 14, Volume I Aerodromes - Aerodrome Design and Operations, a new method for expressing and calculating the bearing strength of a pavement, called the Aircraft Classification Rating (ACR) - Pavement Classification Rating (PCR). A transition period of 4 years has been set by ICAO and the new method will become applicable on 28 Nov 2024, replacing the current Aircraft Classification Number (ACN) - Pavement Classification Number (PCN) method. The applicability of the ACR-PCR method in the EASA Member States has been deferred to a later date to allow a synchronised application for aerodromes and Aeronautical Information Service Providers (AISP).