What exactly means the transmission has to be “sufficiently in advance"?

The transmission of the verified gross mass to the shipping company has to be sufficiently in advance to leave enough time to prepare a proper ship stowage plan. This can vary depending on the shipping company and is to a large extent dependent on the individual size of the ship. Therefore, what exactly “sufficiently in advance” means is determined by the shipping company. Public authorities will not set any provisions regarding this.