The compulsary pilotage area limits are bounded by the followings:
- North East limit: a line joining cap d’Antifer Lt to position 49°46,0′ N – 000°01,0′ E
- North limit: the 49°46,0′ N parallel
- West limit: the méridian passing through Lt buoy LHA (000°09,8′ N).
- Souh limit: the parallel 49°27,0 N.
- East limit: the easternmost extremity of the le Havre port, including the canal de Tancarville upstream to Tancarville lock gates.