Article 3 Extension of limits of jurisdiction for purposes of pilotage
The limits within which the Harbour Authority shall have jurisdiction for the purposes of pilotage under Part I of the Pilotage Act 1987 shall include (in addition to the harbour) so much of the waters of the Wash outside the harbour as lie within the following imaginary straight lines, marked as black lines on the signed plan—
a line drawn due north (true) from a point on the coast of Norfolk at latitude 52° 48'.32N, longitude 0° 20'.E to a point at latitude 52° 55'.24N, longitude0° 20'.E;
a line drawn thence west to a point at latitude 52° 55'.24N, longitude 0° 09'.23E; and
a line drawn thence in a southerly direction to a point on the coast of Lincolnshire at latitude 52° 52'.06N, longitude 0° 09'.30E.
together with all navigable rivers, canals and cuts downstream of Wisbech Bridge running into the waters of the Wash within the above mentioned limits, and including all tidal and closed docks within such limits but excluding any waters within the limits of compulsory pilotage of the King’s Lynn Conservancy Board and the Port of Boston Authority.