Go Around and SOP's
Question for our pilot friends from a controller please.
Following a moment at work today could someone tell me if the SOP's of airliner operators are likely to stipulate a "distance out" on an approach without landing clearance, whereby a go-around becomes mandatory? So let's assume VMC and no landing clearance given by a certain DME to the threshold. Note; I'm not talking about decision height/altitude or anything like that in IMC. I know that if the approach is not stabilised by a certain height (@ 1000' for instrument, 500' for a visual?) then a missed approach must be flown. But inside - say 1nm? Would this change at night or if the controller had stipulated "continue approach, expect late landing clearance" + traffic. If the controller has not called the shots and the departure on the runway has not got himelf going, then clearly the pilot can opt to go around. My question is thus are there rules governing this late call?
Thanks,
Lissart