10.—(1) If, in respect of a length of proposed relevant pipe-line, a pipe-line variation notice has been served and that pipe-line is to be diverted, the pipe-line shall continue for the purposes of and after the diversion to be subject to any direction contained in the pipe-line variation notice.
(2) If, in respect of a length of relevant pipe-line, any requirements are imposed by virtue of a modification notice and the pipe-line is to be diverted or is subsequently diverted, the pipe-line shall continue for the purposes of and after the diversion to be subject to any requirements imposed by the notice.