AccordingtoMARPOL73/78，Toenablepipesofreceptionfacilitiestobeconnectedwiththeship’sdischargepipelineforresiduesfrommachinerybilgesandfromoilresidue（sludge）tanks，bothlinesshallbefittedwithastandarddischargeconnectionthequantityoftheBoltsandnutsforthestandarddischargeconnectionis（）.