If no whirlpool, when to add hops?

[hausnfranz]

I wont be whirlpooling an all-grain batch that calls for a hop addition at whirlpool. Do I add hops at 0min then? Before or after the immersion chiller goes in? Does it matter if I make this addition with hot or chilled wort?

 

[BendBrewer]

When using an IC I would knock out the flame, get the chiller working and then add the Flame Out hop addition. The wort was probably 200 degrees and falling when I added them.

 

[Pivovar_Koucky]

I'd say add at flame out.

You don't boil your IC? How to you sanitize it?