Opinion on the — Proposal for a Council Regulation (EEC) establishing a common measure for the acceleration of agricultural development in certain less-favoured areas where beef cattle are reared, — Proposal for a Council Regulation (EEC) establishing a common action for the promotion of agriculture in certain less-favoured areas of northern Italy, — Proposal for a Council Regulation (EEC) establishing a common action for the promotion of agriculture in the Scottish islands off the northern and western coasts with the exception of the Western Isles