The criterion of entry into force for all three conventions required a minimum number countries acceding with a significant sea trade volume as well as requirements of the aggregate of trade volume by ratifying countries: An overview of number of ratifications of the conferences is shown below.
Although the number of ratifications was larger for the revised conventions, the entry into force criteria were met in none of them.
Only the 1958 received ratifications from the list of countries of which 9 were required to ratify.
Six such ratifications were received (Yugoslavia also ratified, but is depicted in the list as its successor states).
Denouncements of the convention were a result of the entry into force of the Seafarers' Hours of Work and the Manning of Ships Convention, 1996 for those countries.