I guess it's time to repost this:

(A recent update to the British Airways Flight Operations Manual)
Flight Operations Department Notice, Operational
Origin: Operational Standards Group to: All fleets - long and short haul.
Eff. Date: 01-05-95.
Subject: Pilot Role Reversal During PICUS.

There appears to be some confusion over the new pilot role titles. This
notice hopefully will clear up any misunderstandings.

The titles P1, P2 and copilot will now cease to have any meaning within the
BA operations manuals. They are to be replaced by Handling Pilot,
Non-Handling Pilot, Handling Landing Pilot, Non-Handling Landing Pilot,
Handling Non-Landing Pilot and Non-Handling Non-Landing Pilot.

The Landing Pilot is initially the Handling Pilot and will handle the
takeoff and landing, except in role reversal when he is the Non-Handling
Pilot for taxi until the Handling Non-Landing Pilot hands the handling to
the Landing Pilot at 80 knots.

The Non-Landing (Non-Handling, since the Landing Pilot is handling) pilot
reads the checklists to the Handling Landing Pilot until after the Before
Descent Checklist completion, when the Handling Landing Pilot hands the
handling to the Non-Handling Non-Landing Pilot who then becomes the Handling
Non-Landing Pilot.

The Landing Pilot is the Non-Handling Pilot until the "Decision Altitude"
call, when the Handling Non-Landing Pilot hands the handling to the
Non-Handling Landing Pilot, unless the latter calls "Go Around," in which
case the Handling Non-Landing Pilot continues handling and the Non-Handling
Landing Pilot continues non-handling until the next call of "Land" or "Go
Around," as appropriate.

In view of recent confusion over these roles, it was deemed necessary to
restate them clearly.

Authority: Operational Standards Group S 4220 H3 TBA,OPS12/A34/0595