If a Member State extends its fishing limits in certain areas to tsvelve nautical miles, the existing fishing activities within twelve nautical miles must be so pursued that there is no retrograde change by comparison with the situation on 31 January 1971.
Má dhéanann Ballstát a theorainneacha iascaireachta a leathnú i geriosanna áirithe go dtí dhá mhuirmhile dhéag, ní foláir leanúint den chleachtas iascaireachta sa dá mhuirmhile dhéag sin ar mhodh nach cúlú é i gcomparáid leis an staid a bhí ann an 31 Eanáir 1971.