Funny you mention PCOM, their supplemental essay prompt begins:
"Noting the missions and objectives of the Osteopathic profession and PCOM, please describe ..."
I would normally NOT capitalize the O but now I'm having second thoughts. At the same time I have seen a few typos in secondary apps and disciplinary forms, maybe it really isn't that big of a deal. OR depends entirely on who is reading it. I'd like to think this wouldn't be a big concern for most docs.