Originally Posted by Roddy_Piper
when the tower has both in sight and is talking to one of them AND tower tells "center" that they can provide visual between successive arrivals.
absolutely, aircraft B has aircraft A in sight and is following on a visual approach to a towered airport. or as previously stated, tower provides visual separation between two arrivals.
not necessarily. visual separation doesn't not need to be in an LOA to be applied.
you can use it even if your NOT in a pinch.
I work at Salina Tower in Salina, KS. We are a VFR Tower with Kansas City Center directly above. We use visual separation all the time and I agree with Roddy's answer.