12In those circumstances, the Commission adopted Decision 1999/473/EC of 16 June 1999 relating to a proceeding pursuant to Article 81 [EC] (Case IV/36.081/F3 — Bass) (OJ 1999 L 186, p. 1, ‘the contested decision’). It decided that the standard lease notified fell within Article 81(1) EC, but declared that provision inapplicable on the basis of Article 81(3) EC, with effect from 1 March 1991 to 31 December 2002.