Is there such a thing as a certificate for ultrasound for APN's?

Does anyone know of anything like that, more specifically for CNM?

THe only thing I have found so far is a 2 day class, on 3rd trimester ultrasound (not bad)

and then of course a year long program with lots of clinical hours to be ultrasonographer, (that's not what I want),

I'm currently in school to obtain my CNM/WHNP