The basis for compensation to be specified in contracts with independent consultants shall generally be as follows:

(1) For applications for site certification, where the total scope and/or volume of work is variable and acts to prevent advance determination of total project cost, the consultant shall be compensated on the basis of actual cost plus a net fee for profit;

(2) For potential site studies, where the total scope and/or volume of work to be performed can be specified in advance, the consultant shall be compensated on the basis of a lump sum payment.

All payments to independent consultants shall be subject to audit.