Parties should also consider whether existing reporting systems or other sources of ship position data can provide adequate information for the region, and seek to minimize unnecessary additional reports by ships, or the need for rescue co-ordination centres to check with multiple reporting systems to determine availability of ships to assist with search and rescue operations.
Pogodbenice morajo prav tako proučiti, ali lahko obstoječi sistemi javljanja ali drugi viri podatkov o položaju ladje zagotavljajo ustrezne informacije za določeno območje, ter si morajo prizadevati, da bi čim bolj zmanjšale nepotrebna dodatna poročila ladij ali potrebo po tem, da morajo centri za usklajevanje reševanja preverjati z več različnimi sistemi javljanja, da bi ugotovili, katere ladje so na voljo za iskanje in reševanje.