(a) The CDSA must verify that the service provider:(1) documents each element required by the individual's program;(2) documents service dates within the same calendar month; and(3) unless using an EVV system as required by Chapter 68 of this title (relating to Electronic Visit Verification (EVV) System), has a dated signature of the employer or DR on all documentation of services delivered.(b) Documentation must include:(1) time sheets for employees who are not required to document their time using an EVV system as required by Chapter 68 of this title;(2) time sheets or invoices for contractors;(3) invoices for vendors;(4) receipts when payment has been made for a service; and(5) other documentation in accordance with requirements of the individual's program.(c) A CDSA must:(1) verify the accuracy of the document;(2) verify that documentation is completed in accordance with §41.239 of this chapter (relating to Documentation of Services Delivered);(3) if necessary, obtain corrected documentation approved by the employer or DR; and(4) process and issue payment.