61.—(1) The undertaker shall, as soon as practicable after the making of this Order, submit to the Secretary of State copies of—
(a)the land plans;
(b)the access plans;
(c)the works plans and sections;
(d)the approved plans;
(e)the book of reference; and
(f)the environmental statement,
for certification that they are true copies of the plans or documents referred to in this Order.
(2) A plan or document so certified shall be admissible in any proceedings as evidence of the contents of the document of which it is a copy.