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Before the take-off run, check with the weather radar that the flight path is clear of meteorological hazards.

.  
Monitor the airspeed and speed trend during the take-off run to detect any occurrences of wind shear.

.  
In case of wind shear, apply the recovery technique without delay.

Refer to your FCOM.
.  Refer to FOBN “ Take-off and Departure Operations – Revisiting the STOP OR GO Decision” (See AIRBUS References).
Descent and approach
.  
Approach briefing: consider most recent weather reports and forecast, visual observations, and crew experience on airport to build up your wind shear awareness.

.  
Consider a delay of the approach and landing until conditions improve or divert to a suitable airport when wind shears are reported by other pilots from other aircraft or by ATC.

.  
During the approach, check with the weather radar that the flight path is clear of meteorological hazards.

.  
Monitor the airspeed and speed trend during the approach to detect any occurrences of wind shear.

.  
In case of wind shear, abort the approach and apply the recovery technique without delay. Refer to your FCOM.

6.3. REGULATIONS FOR WEATHER RADAR

The carriage of weather radar is recommended in all ICAO member States as per ICAO Annex 6 – Operation of Aircraft Part I:
“6.11 Recommendation.— Pressurized aeroplanes when carrying passengers should be equipped with operative weather radar whenever such aeroplanes are being operated in areas where thunderstorms or other potentially hazardous weather conditions, regarded as detectable with airborne weather radar, may be expected to exist along the route either at night or under instrument meteorological conditions.”
The carriage of forward looking wind shear warning system is recommended in all ICAO member States as per ICAO Annex 6 – Operation of Aircraft Part I:
“6.21.1 Recommendation.— All turbo-jet aeroplanes of a maximum certificated take-off mass in excess of 5 700 kg or authorized to carry more than nine passengers should be equipped with a forward-looking wind shear warning system.”
Weather radar
.  
As per EASA EU OPS 1.670: The weather radar is required for pressurized aircraft operated at night or when IMC apply in areas where potentially

hazardous weather conditions, detectable by weather radar, may exist along the route.

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As per FAA FAR 121.357: The weather radar is required for any transport aircraft, except during training, test, or ferry flight, and when the aircraft is solely operated in areas listed in FAR 121.357 (d) (e.g. Hawaii, Alaska).

Wind Shear
.  
As per EASA EU OPS 1, no requirement has been found about wind shear warning and detection.