If the deposited plans or the deposited book of reference or the substituted plans or the substituted book of reference are inaccurate in their description of any land, or in their statement or description of the ownership or occupation of any land, the Executive after giving not less than 10 days' notice to the owner, lessee and occupier of the land in question may apply to two justices having jurisdiction in the place where the land is situated for the correction thereof.

If on any such application it appears to the justices that the misstatement or wrong description arose from mistake the justices shall certify the fact accordingly, and shall in their certificate state in what respect any matter is misstated or wrongly described.

The certificate shall be deposited in the office of the Clerk of the Parliaments and a copy thereof in the Private Bill Office, House of Commons, with the chief executive of the Council of the City of Manchester and the director of legal services of the Trafford Borough Council and thereupon the deposited plans and the deposited book of reference or, as the case may be, the substituted plans and the substituted book of reference shall be deemed to be corrected according to the certificate, and it shall be lawful for the Executive to take the land and execute the works in accordance with the certificate.

A person with whom a copy of the certificate is deposited under this section shall keep it with the other documents to which it relates.