ENR 1 GENERAL RULES AND PROCEDURES

ENR 1.1 General rules

1.1.1. General
1.1.1.1 The rules of the air traffic procedures applicable to air traffic within the EMIRATES Flight Information Region conform with Annexes 2 and 11 to the Convention on International Civil Aviation, the Procedures for Air Navigation Services, and the Regional Supplementary Procedures applicable to the MID and SEA Regions, except in the cases indicated hereunder. Any differences which are attributable to the UAE ATS are registered with the International Civil Aviation Organisation (ICAO).
1.1.2. Radio communication equipment failure procedures
1.1.2.1 The procedures to be followed by aircraft which are required to maintain two way radio communications experiencing radio equipment failure conform to those specified in ICAO Annex 2 - Rules of the Air, para 3.6.5.
1.1.2.2 The procedures to be followed by aircraft experiencing radio communication equipment failure whilst under radar control are specified in ENR 1.6.1.3.
1.1.3 Fuel dumping
1.1.3.1 Except in case of emergency, fuel dumping should be carried out over the Arabian Gulf or Gulf of Oman, or clear of populated areas at or above 6,000 FT altimeter setting.
1.1.3.2 In case of emergency, fuel dumping shall, whenever possible, not be carried out:
1.1.3.2.1 Over the congested area of cities, towns or settlements.
1.1.3.2.2 At an altitude lower than 4000 FT AGL.
1.1.3.2.3 In holding patterns.
1.1.3.2.4 Less than 3000 FT above other aircraft.

Note: For fuel to be jettisoned while not meeting the above requirements the situation must be unavoidable and shall be reported immediately to the relevant ATS Unit.

1.1.3.3 In all circumstances fuel dumping should not be conducted in areas where thunderstorms are present.
1.1.3.4 Other known traffic should be separated from the aircraft dumping fuel by:
1.1.3.4.1 At least 10 NM horizontally, but not behind the aircraft dumping fuel; or
1.1.3.4.2 At least 50 NM behind the aircraft dumping fuel, when at or above the level of the aircraft dumping fuel; or
1.1.3.4.3 At least a vertical separation of 1000 FT above or 3000 FT below the aircraft dumping fuel, if behind or crossing the flight path within 15 MIN flying of the aircraft dumping fuel.
1.1.3.5 Communications
1.1.3.5.1 Whenever a fuel dumping is performed, its beginning, completion and the reason for fuel dumping shall be reported to the relevant ATS unit.
1.1.3.5.2 If the aircraft will maintain radio silence during the fuel dumping operation, the frequency to be monitored by flight crew and the time when radio silence will terminate should be agreed.
1.1.3.6 Information to other ATS units and non-controlled traffic
1.1.3.6.1 A warning message shall be broadcast on appropriate frequencies for non-controlled traffic to remain clear of the area concerned. Adjacent ATC units and control sectors should be informed of the fuel dumping taking place and requested to broadcast on applicable frequencies an appropriate warning message for other traffic to remain clear of the area concerned.
1.1.3.6.2 Upon completion of the fuel dumping, adjacent ATC units and control sectors should be advised that normal operations can be resumed.
1.1.3.7 Reporting of fuel dumping Incident
1.1.3.7.1 Fuel dumping incidents shall be reported to the GCAA through the incident reporting system (ROSI) by the pilot of the aircraft dumping fuel, including details of location, altitude, duration and reason for the fuel dump.
1.1.4 Unmanned Aircraft System (UAS)
1.1.4.1 Unmanned aircraft system shall not operate within controlled airspace unless approved in accordance with CAR PART IV CAR‐UAS.
1.1.4.2 Pilots to exercise caution due to high concentration of aircraft operating under due regard within EMIRATES FIR.
1.1.5 Conditional Routes (CDRs) are ATS Routes which are usable only under specified conditions. Three types of Conditional Routes are used as described below:
  1. Category One (CDR 1) - A route which is Permanently Plannable during the times published in ENR 3.
  2. Category Two (CDR 2) - A route which is Non-Permanently Plannable. Currently not used in the UAE.
  3. Category Three (CDR 3) - A route which is not available for flight planning but may be used tactically at the discretion of ATC.

A CDR may have more than one Category.