(This note is not part of the Regulations)
These Regulations revoke and replace the Rules of the Air Regulations 1991, as amended. In addition to some minor drafting amendments, the following changes are made:
(1) Lateral distances are specified in metric measurements and pressure in hectopascals (rules 5, 16(2) and 30(1)).
(2) When taking off or approaching to land at an aerodrome within Class B, C or D airspace, any visibility communicated to the commander of the aeroplane by the appropriate air traffic control unit shall be taken to be the flight visibility (rule 24(3)).