ATIS Reports an RVR of 600..Depart or Not?

[Icelandair]

You could get back in if you had Cat III authorization

 

[CFIse]

They just want to know if you've read the 121 regs. Yeh OpsSpec, runway, training, certification all come into play, so by all means mention them, but otherwise parrot the 121 reg. and let it go at that.

 

[Singlecoil]

You could get back in if you had Cat III authorization

Still need a takeoff alternate unless you can do a single-engine Cat III.

 

[TIGV]

Still need a takeoff alternate unless you can do a single-engine Cat III.

Well....by definition you are in an emergency condition so if you were crazy enough you could in fact request a return to the departure airfield for the approach of your choice.