Hotline
Another little NEC CECA difference is revealed.
Accessory buildings associated with a Dwelling unit are subject to the rules of a dwelling unit. So the poolroom of an apartment building is not but the pool house of a house is.
No outlets are required at sinks of commercial buildings in the washrooms but they are required at the sink of all washrooms in house and the outbuildings too.
Of course you probably could not build a pool house and pool on a property that did not also have a house on it either. We judge these according to the legal descriptions of the property or structure. A live work occupancy might be considered as a commercial/residential property.
