ACES format for EXR render in After Effects

I've been unable to find an ouput for the ACES format. Although this is an ambitious academy-sponsored format, I don't see any support for After Effects yet. The VFX firm involved is using with Nuke. The format specifically requested for renders is

ACES EXRs 0 3ch., 16 bits/ch. floating point – ie. 2048 x 858

 

Any information or suggestions appreciated.

thanks,

Ben