... the aids provided for by this Regulation may be granted in Norway and Sweden until 31 December 1999 in favour of agri-forestry holdings of a family nature, on condition that the agricultural surface area of the holding is not less than 15 hectares and the aids concern only agricultural activities. The maximum size of an agri-forestry holding of a family nature shall be determined by the Commission, pursuant to the procedure provided for in Article 29 of Regulation (EEC) No 4253/88 ...