(1) The term supporting documents provided in Article 48 paragraphs (1) - (5), (7) and (9) means invoices issued in accordance with the provisions of the national law or of the state in which they were issued or other accounting documents based on which the payment liability is registered, as well as documents attesting the making of the payments.

(2) In the event that the supporting documents provided for in paragraph (1), submitted by the financial mandataries, fail to clearly reveal the lawfulness and reality of the expenses, the Permanent Electoral Authority may request additional statements, clarifications or supporting documents.