3. The limits of the harbour shall be the area of land the limits of which are shown edged by a red line on sheet number 26 and, accordingly, there shall be substituted for the definition of “the harbour” in section 4 of the 1954 Act, the following definition—
“the harbour” means Dover Harbour the limits of which are shown edged by a red line on sheet number 26 of the deposited plans being the deposited plans defined as such by article 2 of the Dover Harbour Revision Order 2012.