Commercial buildings and shopping centers connected for electric service after July 1, 1980, may not be master metered if the units for non-transient tenants contain an electric space heating, water heating, or air-conditioning (space cooling) unit that is not centrally controlled and for which the unit's tenants individually control electric usage. Any non-transient tenants in otherwise master-metered buildings will be individually metered and billed by the utility if the tenant's electric load is significantly greater than that of other tenants in the building or shopping center or exceeds the individual metering threshold found in the utility's tariffs.
Idaho Admin. Code r. 31.26.01.102