On 5th November 2020 a new system of reporting runway contamination comes into force. Called the ICAO Global Reporting Format (GRF), the ICAO Aerodrome SARPs are in Annex 14, with additional guidance in the PANS Aerodromes Doc 9981 and Circular 355.
The GRF allows cross functional (Aerodromes, ATM and Flight operations) harmonisation and standardized reporting. November 2020 may seem a long way off, however aerodrome operators may wish to run parallel trials this coming winter, please let your aerodrome inspector know so that any lessons learned can be exchanged.
Further information is available on the CAA website.