### ENR 1.8 ICAO REGIONAL SUPPLEMENTARY PROCEDURES

EUR Regional Supplementary Procedures are applied. Differences are shown below:

1. Chapter 2.
   Reduced Vertical Separation Minimum (RVSM) of 300 M (1 000 FT)

   The airspace within Budapest FIR between FL 290 and FL 410 inclusive, as described in ENR 2.1, is EUR RVSM airspace.

2. Chapter 3. paragraph 3.1
   Air-Ground Communications and In-Flight Reporting

   Usage of 8.33 KHZ channel spacing capable radio equipment is mandatory in airspaces within Budapest FIR where radio communication is required.

   Radio communication on UHF frequency (in the band 225.000 - 400.000 MHZ) available for state aircraft upon request. UHF coverage is provided above 10 000 FT AMSL within Budapest FIR.

3. Chapter 11.
   Flight Information Service

   11.2. Transmission of SIGMET information

   11.2.1. SIGMET information passed to aircraft cover Budapest FIR only.

   11.4. Transmission of amended aerodrome forecast

   11.4.1. Amended aerodrome forecasts will be passed to aircraft only on pilots’ request.