To answer some of your replies:
1. maybe 10% of the building being retrofitted.
2. No medical use at all, renovating being done to make old cubicle area into offices for new engineering staff. New walls, dividers and such.
3. Same ole tennant, been in the building for as long as I can remmember.
4. All new ac unit trunks being pu in, same ac units though, no plenum cieling that I know about.
I have no clue how he can justify this, like I said this was an electrical inspector, not a building inspector or fire marshall.