Rule 18.15.402 - FILING INVOICES(1) No altered or corrected invoice will be accepted for refund purposes when errors occur. The original invoice must not be altered or corrected but must be voided and a new original invoice issued. All altered or corrected invoices must be marked void and retained by the seller for a period of at least three years from date issued.Mont. Admin. r. 18.15.402
Transfer from 18.9.303, 2016 MAR p. 1849, Eff. 10/15/2016AUTH: 15-70-104, MCA;IMP: 15-70-426, MCA