Originally Posted by
texaspilot76
You can't perform the duties of PIC unless you are the Captain. You are NOT acting as PIC when you are the flying pilot.
Not true. See FAR 61 requirements for an ATP license. An SIC doing his normal pilot flying thing does not count, but if you both agree that the SIC will be "performing the duties of the PIC" and log it as such it counts toward the 250 hours of PIC required for the ATP.
This does NOT mean the time is PIC, or is logged as PIC, or will count toward anyone's hiring mins. It is logged as SIC (performing the duties of PIC) and counts only for the ATP experience requirements. This time does NOT count for ICAO requirements.