220 CMR, 50, 704
NOTE A. - If the utility produces gas by a single process at only one plant, credits need not be made to this account for the cost of steam used in such gas production facility.
NOTE B. - Where steam is produced by producer gas equipment or waste heat boilers, and such steam becomes part of the general plant supply, this account should be charged and the steam expense account in the appropriate functional group of accounts (coal gas production, water gas production, etc.) credited with the value of such steam. However, if the steam so produced is used in the same functional operation as that through which derived, such entries need not be made.