e. 
The latest trend forecast available to the Air Traffic Service unit, provided it is no more than 1 hour old, shall always be transmitted to an aircraft together with the latest report of routine or special observation, when the aircraft requests the latter information.
(ICAO 7030/4/SAM RAC 9.0)
INTENTIONALLY 
LEFT 
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Chapter 3 
NATIONAL SUPPLEMENTARY PROCEDURES 
ARGENTINA 
NATIONAL PROCEDURES 
GENERAL INFORMATION/FIR/UIR COVERAGE -This entry includes Comodoro Rivadavia, Cordoba, Ezeiza, Mendoza and Resistencia FIR's. 
DIMENSIONAL UNITS - ICAO Table. 
ALTIMETER SETTING PROCEDURES - Standard. 
VERTICAL SEPARATION - Semi-circular. 
POSITION REPORTING - Standard.
VISUAL FLIGHT RULES 
Standard except: 
1. 
VFR flight authorized 10 NM outside controlled airspace in
low altitude structure. (SPEC/ENR 1.2-2)
2. 
VFR operations may be performed over the sea provided the distance is less than 20 NM from the coastline. However, when a greater distance from the coastline is necessary flight time will not exceed 1 hour.
(SPEC/ENR 1.2-3)
INSTRUMENT FLIGHT RULES 
Standard. 
RVSM RULES - Standard SAM RVSM.
FLIGHT PLANNING 
ROUTE AND AREA RESTRICTIONS -
1. 
Airway W59 in operation exclusively in summer season from
1 December thru 30 March. (SPEC/ENR 3.1-39)
2. 
All aircraft flying in airspace under Argentina's jurisdiction above a height of 3000’ which are equipped with a transponder on Mode C should use the code assigned by Air Traffic Control or set it at 2000 to make it possible to activate the airborne collision avoidance systems on aircraft having them.
(SPEC/ENR 1.6-2)
ADDITIONAL INFORMATION 
NATIONAL HOLIDAYS -
ARGENTINA HOLIDAYS
NAME DATE 
New Year’s Day 1 Jan 
Good Thursday The Thursday before Easter 
Good Friday The Friday before Easter 
Labor Day 1 May 
Constitution Day 25 May 
Affirmation of Argentina’s 2 Apr (*)
Rights over the Malvinas 
Flag Day 20 Jun (*) 
Independence Day 9 Jul 
General San Martin Day 17 Aug (*) 
Columbus Day 12 Oct (*) 
Day of the Immaculate 8 Dec
Conception 
Christmas 25 Dec
* Actual date may change. (SPEC/GEN 2.1-2) 
ASCENSION ISLAND
NATIONAL PROCEDURES 
DIMENSIONAL UNITS - Blue Table except: 
1. 
RELATIVELY SHORT DISTANCES - Feet.
2. 
WIND SPEED - Statute miles per hour for surface winds.
3. 
VISIBILITY - Statute miles.
4. 
RUNWAY VISUAL RANGE - Feet.
5. 
ALTIMETER SETTING - Inches of mercury.
6. 
TEMPERATURE - Degrees Fahrenheit for surface.
7.  
WEIGHT - Pounds. (AFFSA/AFFSA)
ALTIMETER SETTING PROCEDURES - Standard. 
 
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