| (1) | A meteorological service provider shall supply meteorological information required by— |
| (a) | an air service operator for pre-flight planning and in-flight replanning; |
| (b) | flight crew members for pre-departure planning; and |
| (c) | aircraft in flight for tactical operations. |
| (2) | Upper-air grid information supplied by the WAFC for pre-flight and in-flight re-planning shall be in the GRIB code form. |
| (3) | Information on significant weather supplied by WAFC for pre-flight planning and in-flight re-planning shall be in the BUFR code form and in IWXXM GML form. |
| (4) | Meteorological information supplied to an air service operator and flight crew members shall— |
| (a) | cover a flight in respect of time, altitude, and geographical extent; |
| (b) | relate to appropriate fixed times, or periods of time; |
| (c) | extend to an aerodrome of intended landing; and |
| (d) | cover the meteorological conditions expected between an aerodrome of intended landing and alternate aerodrome designated by an air service operator. |
[Regulation 174.05.2 inserted by regulation 8(c) and (r) of Notice No. 5008, GG50880, dated 28 June 2024 (Twenty-Ninth Amendment of the Civil Aviation Regulations, 2024)]
