This Directive shall apply to 'flavourings' used or intended for use in or on foodstuffs to impart odour or taste, and to source materials used for the production of flavourings. Member States shall take the necessary measures to ensure that flavourings may not be marketed or used if they do not comply with the rules laid down in this Directive. Under Annex I are set the maximum limits for certain substances obtained from flavourings and other food ingredients with flavouring properties present in foodstuffs as consumed in which flavourings have been used.