3:05:05:02.  Invoice changes to be made only by vendor -- Exceptions. Invoice changes shall be made only by the vendor unless the change falls within the following exceptions:

          (1)  Sales tax may be deleted;

          (2)  When a vendor refuses to adjust an invoice to reflect the amount actually paid, a signed statement from the department head stating the true price and the refusal of the vendor to state it must accompany the voucher.

          Source: 2 SDR 23, effective September 29, 1975.

          General Authority: SDCL 4-9-1.1.

          Law Implemented: SDCL 4-9-2.