Article 51 Certification of plans, etc.I1

The undertaker shall, as soon as practicable after the making of this Order, submit copies of the book of reference, the deposited sections and the deposited plans to the Secretary of State for certification that they are, respectively, true copies of the book of reference, sections and plans referred to in this Order; and a document so certified shall be admissible in any proceedings as evidence of the contents of the document of which it is a copy.