An access arrangement determined by an arbitrator--
(a) takes effect--(i) in the case of a draft access arrangement that is taken to be a final access arrangement--at the end of the period of 14 days after a copy of the draft access arrangement has been served on each of the parties, or(ii) in the case of a final access arrangement prepared under section 69N--when a copy of the arrangement has been served on each of the parties,or on such later date as may be specified in the arrangement, and
(b) subject to section 69D (3), has effect as if its terms were embodied in a deed that had been duly executed by each of the parties.