Here's a dot for you dot connectors... While waiting to push from the west side of D terminal in LGA a few days ago, the jet next to me is pushing and asks for engine start clearance from the ramp tower. Ramp guy says, "go ahead and you don't need to ask next time." The pilot calls back and says "ok, but the green page says I have to ask", to which the ramp tower replies, "oh yeah, they added that in there for when we start pushing guys tail to tail from the terminal behind you" (which is the current USAir terminal).