By way of derogation from Article 3, the following sums may be re-used ... proceeds from the supply of goods and services to other Institutions or bodies, including refunds by such Institutions or bodies of mission allowances paid on their behalf.
The travel costs referred to in Article 13 (3) of Regulation (EEC) No 4045/89 shall include travelling expenses incurred by officials on assignment, accommodation expenses and subsistence allowances paid in accordance with national provisions and/or practices.
