(a) If a utility combines an expense prohibited from recovery with an expense eligible for recovery, and ancillary costs are associated with the combined expense, the utility shall allocate a portion of the ancillary cost to the expense prohibited from recovery and shall be prohibited from recovering costs ancillary to the prohibited expense.
(b) Each utility shall keep a record with respect to any advertising or activity, incurred directly or indirectly, prohibited from recovery pursuant to Puc 508.02, of:
(1) Any expenditure incurred; and
(2) Any allocation methodology.
Source. (See Revision Note # 1 and Revision Note #2 at chapter heading for Puc 500) #13794, eff 10-25-23