When is the deadline for transshipped cargo at a port outside Japan?

When is the deadline for transshipped cargo at a port outside Japan?

The rules require the filers to file cargo information at least 24 hours before departure of a port of loading on a foreign trading vessel intended for entry into Japan. 

For instance, if a cargo from Europe is transshipped at a port in Singapore, the cargo information is required to be filed at least 24 hours before departure from the port in Singapore.