Originally Posted by Gnirren
Under FAA for example a multi-engine instructor training a person already rated on the aircraft. In that case the MEI can log pic because he's providing instruction, and the student can log pic because he's rated on the aircraft.
Yes, the same goes for a CFII who is teaching a PPL no IR student, or a CFI doing a Flght Review with someone who is still current and has a valid Flight Review still. Same goes for 2 PPL holders, one of which being the safety pilot, and agreed to be PIC before the flight.