1.The period during which tenders may be submitted in response to the first partial invitation to tender shall end on 13 July 2011 at 12 noon, Brussels time.
2.The periods during which tenders may be submitted in response to the second and subsequent partial invitations shall begin on the first working day following the end of the preceding period. They shall end at 12 noon., Brussels time, on 27 July 2011, 24 August 2011, 14 September 2011 and 28 September 2011.
3.The Commission may suspend the submission of tenders for one or several partial invitations to tender.