Commander of the Strategic Rocket Forces, Sergey Karakayev was reported as saying that the first "experimental" Sarmat ICBMs will be delivered to the RVSN in 2015. It's not quite clear what this means, but it seems likely that the missile will make some sort of appearance in 2015 - probably in a flight test.
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Sarmat ICBM will be deployed both in Dombarovsky, and in Uzhur:
http://ria.ru/defense_safety/20141225/1040088893.html