SUBJECT: Air Regulation ATPL
Question No. 1

According to international agreements wind direction shall be adjusted to the local variation and given in degrees magnetic :

[ Total Que.:50 ]
When the local variation exceeds 10 deg East or 10 deg West.
In upper wind forecast for areas north of lat 60 deg north or 60 deg south.
When an aircraft on the request by a meteorological watch office (MWO) or at specified points transmits a PIREP
Before landing and take-off