A county assessor shall be responsible to calculate the contributory value of farm buildings on enrolled land. The method of calculating the contributory value of a farm building shall be a method based upon the fair market comparison and the extraction of the value of the farm building from the total fair market value of the parcel.
7 Pa. Code § 137b.54
This section cited in 7 Pa. Code § 137b.51 (relating to assessment procedures).