Article 67
1. Payment shall be made on production of proof that the relevant action has been carried out in accordance with the provisions of the Europol Decision within the meaning of Article 49 of the general Financial Regulation or the contract or grant agreement, and shall cover one of the following operations: (a) payment of the entire amount due; (b) payment of the amount due in any of the following ways: (i) prefinancing, which may be divided into a number of payments; (ii) one or more interim payments; (iii) payment of the balance of the amounts due. Prefinancing shall count in full or in part against the interim payments. The entire prefinancing and interim payments shall count against the payment of balances. 2. A distinction shall be made in the accounts between the different types of payment referred to in paragraph 1 at the time they are made.