27 Door-to-door (The carrier is responsible for the intermodal carriage of cargo including both the pre-carriage and the on-carriage.)
28 Door-to-pier (The carrier is responsible for the intermodal carriage of cargo including the pre-carriage, but excluding the on-carriage.)
29 Pier-to-door (The carrier is responsible for the intermodal carriage of cargo including the on-carriage, but excluding the pre-carriage.)
30 Pier-to-pier (The carrier of intermodal cargo is only responsible for the main carriage.)