AMC1 ORO.FC.100(c) Composition of flight crew
CAA ORS9 Decision No. 1
OPERATIONAL MULTI-PILOT LIMITATION (OML)
The operator should ensure that pilots with an OML on their medical certificate only operate aircraft in multi-pilot operations when the other pilot is fully qualified on the relevant type of aircraft, is not subject to an OML and has not attained the age of 60 years.