Check the jeppy chart notams as well and see what they say. A while ago our company notams had revised minima for a continental airport. What had us stumped was that it was using the term OCA and referring it to the Cat 1 ILS whereas we were trying to work out if they really meant MDA(H). A check of the jeppy chart notams showed that the MDA had in fact risen slightly and jeppy used the correct phraseology and didn't refer at all to OCA. In reality it was a non issue as it was VMC and my vote was for entering the higher minima to be on the safe side in anycase. I think the company notams we had just uplifted the local AIP or whatever source they come from and something got lost in translation.