 At two occasions, Puerto Rico has formally requested Det Stavangerske Dampskibsselskap to get the company to change the flag, the first time through the Norwegian Ministry of Foreign Affairs during the 1950s.Lawyers have ruled that since the flag was in use many years before Puerto Rico formally got theirs, there is no violation of international rules.The flags are also not quite the same as the star of the company's flag tilts slightly compared to the star on the flag of Puerto Rico.