ENR 1.3.1 Rules applicable to all IFR flights

ENR Aircraft equipment

Aircraft shall be equipped with suitable instruments and with navigation equipment appropriate to the route to be flown.


Due to the unresolved potential for FMC insertion errors:
  1. Aircraft navigation data shall NOT contain waypoints in the Reykjavik Control Area in the ARINC424 paragraph 7.2.5 format of "Nxxxx".
  2. If an aircraft operator or flight planning service has an operational need to populate data bases with half-degree waypoints in the Reykjavik Control Area, they are advised to use the alternate format "Hxxxx".

ENR Minimum levels

Except when necessary for take-off or landing, or except when specifically authorized by the Icelandic Transport Authority, an IFR flight shall be flown at a level which is at least 2 000 ft (600 m) above the highest obstacle located within 8 km of the estimated position of the aircraft;

ENR Change from IFR flight to VFR flight

An aircraft electing to change the conduct of its flight from compliance with the instrument flight rules to compliance with the visual flight rules shall, if a flight plan was submitted, notify the appropriate air traffic services unit as soon as possible specifically that the IFR flight is cancelled and communicate thereto the changes to be made to its current flight plan.
When an aircraft operating under the instrument flight rules is flown in or encounters visual meteorological conditions, it shall not cancel its IFR flight unless it is anticipated, and intended, that the flight will be continued for a reasonable period of time in uninterrupted visual meteorological conditions.

ENR 1.3.2 Rules applicable to IFR flights within controlled airspace

ENR General

IFR flights shall comply with the provisions of 3.6 of regulation 770/2010 when operated in controlled airspace.

ENR Flight levels

An IFR flight operating in cruising flight in controlled airspace shall be flown at a cruising level, or, if authorized to employ cruise climb techniques, between two levels or above a level, selected from:
The Tables of cruising levels in ENR 1.7.5.

ENR Initial call

Radiotelephony procedures for air-ground voice communication channel changeover.

The initial call to an ATC unit shall contain the following elements:
  1. designation of the station being called;
  2. call sign and, for aircraft in the SUPER and HEAVY wake turbulence category, the word “Super” or  “Heavy”;
  3. level, including passing and cleared levels if not maintaining the cleared level;
  4. speed, if assigned by ATC; and
  5. additional elements.

ENR 1.3.3 Rules applicable to IFR flights outside controlled airspace

ENR Cruising levels

 An IFR flight operating in level cruising flight outside of controlled airspace shall be flown at a cruising level appropriate to its track as specified in:
  1. the Tables of cruising levels in ENR 1.7.5, except when otherwise specified by the appropriate ATS authority for flight at or below 3 000 ft above mean sea level.

ENR Communications

An IFR flight operating outside controlled airspace but within or into areas, or along routes, designated by Isavia ANS in accordance with c) or d) of regulation 770/2010 shall maintain an air-ground voice communication watch on the appropriate communication channel and establish two-way communication, as necessary, with the air traffic services unit providing flight information service.

ENR Position reports

  1. A controlled flight shall report to the appropriate air traffic services unit, as soon as possible, the time and level of passing each designated compulsory reporting point. Position reports shall similarly be made in relation to additional points when requested by the appropriate air traffic services unit.
  2. Controlled flights providing position information via ADS-C shall only provide voice position reports when requested.