Is the application condition for relaxed application to the deadline of filing applied in relation between the final port in foreign country and the port of unloading the cargo in Japan?

Is the application condition for relaxed application to the deadline of filing applied in relation between the final port in foreign country and the port of unloading the cargo in Japan?

The relaxed application to the deadline of filing is decided by the port of loading cargo in foreign country and the first port of entry in Japan.