If the deposited plans or the book of reference to those plans are inaccurate in their description of any land, or in their statement or description of the ownership or occupation of any land, the Secretary of State, after giving not less than ten days’ notice to the owner 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 of the plans or book of reference.

If on any such application it appears to the justices that the misstatement or wrong description arose from mistake or inadvertence, the justices shall certify 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 of it in the Private Bill Office of the House of Commons and with the proper officers of the Councils, the Dartford Borough Council and the Thurrock Borough Council; and the deposited plans or the book of reference shall be deemed to be corrected according to the certificate and it shall be lawful for the Secretary of State, in accordance with the certificate, to proceed under this Act as if the deposited plans or the book of reference had always been in the corrected form.

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

In this section “book of reference” means a book deposited in April 1987 in connection with the Dartford-Thurrock Crossing Bill in the Office of the Clerk of the Parliaments and the Private Bill Office of the House of Commons.