8. In section 10 (provisions for securing that a pipe-line is so used as to reduce necessity for construction of others), after subsection (6), there shall be inserted the following–
“(7) An additional pipe-line shall be treated as a pipe-line constructed pursuant to a pipe-line construction authorisation for the purposes of this section.
(8) Any diversion to a pipe-line constructed pursuant to a pipe-line construction authorisation (or treated as so constructed) shall be treated as part of that pipe-line for the purposes of this section.
Accordingly, a diversion which required such an authorisation shall be treated for those purposes as constructed pursuant to the pipe-line construction authorisation of the pipe-line it is diverting.”.