Direct EDC to establish clear guidance regarding the allowable uses of participant support cost funding. This guidance should address how to segregate, identify, and account for costs that are covered with participant support cost funding. Specifically, this guidance should address how EDC verifies it does not use participant support costs to cover non-participant or other unallowable costs, such as costs budgeted for within non-participant support costs budget categories, costs incurred for EDC employees, and expenses associated with no-show participants.