Clear days. The "Charterparty Laytime Definitions" give a definition of "clear days" as:
Container slot management (CSM). The objective of this management in a liner operator’s corporate plane is to achieve the best utilisation factors of the container spaces or slots available on-board the carrier’s own vessels. The revenue is increased by the volume of the goods carried. If slot space cannot be found in the carrier’s vessels, the carrier may use “vessel sharing arrangements” (VSA) with other carriers under which slots on-board vessels are reserved for fellow carriers.
Container flow management (CFM). This expression is related to container logistics. This approach to logistics involved the management of the fleet of containers themselves, not the fleet of container vessels and the spaces (or “slots”) on board the vessels. The management also involves the movement of a container from one point to another without consideration of the actual mode of transport. The traditional carrier thus becomes a true “transport organiser”.
Concentrates. This is a material in small particle form which results from a processing of natural ore. The main hazard associated with concentrates is that moisture entrained in the particles may settle out and the surface reach a nearly fluid state which will affect the ship’s stability if the cargo shifts. Moreover, some concentrates, such as iron concentrates produced when iron is crushed dry, contain sulphur so that if concentrates become damp the sulphur reacts with the oxygen in the surrounding air to produce heat. Compartments containing concentrates should not be ventilated in order to reduce the oxygen content.
Colliery working days. This is a description of type of laytime depending on the ordinary working hours of the colliery from which the coal will be delivered to the vessel. The working days are related to normal times and in normal circumstances. Colliery holidays will be "holidays" if an exception to laytime exists in the charterparty (for example, "SHEX"). If the workers in a colliery are on strike, the delay is not excepted from the laytime, unless, of course, there is an appropriate "strike clause", unless a Sunday or holiday occurs during the strike.
Container sizes. The sizes of containers depend mainly on their external dimensions, so that, for example, a container can be an ISO standard “Series 1 Freight container, Rating 1AA” with external dimensions of 40 feet (length) x 8 feet (width) x 8 feet 6 inches (height). The dimensions are used in either imperial or metric units. Although much of the world has become metricated, the “box” or container is still referred to by its imperial units, for example, a FEU is a forty-foot equivalent unit (of space occupied).
Paramount clause. (Also termed Clause Paramount.) This clause is generally found in a bill of lading but can also be found in a charterparty. The main purpose of such a clause is to incorporate the terms and conditions of the Hague or Hague-Visby Rules (or the Hamburg Rules) into the document which is (or which evidences) the contract of carriage of goods by sea. The Paramount clause can also incorporate particular legislation, such as the United States Carriage of Goods by Sea Act 1936.
Calendar month. A vessel may be fixed on a time charter basis, either for the period occupied by a certain voyage; e.g., "for one voyage from the UK and/or Continent to Australia via port or ports in charterers' option" or for the term of ". . . calendar months, commencing from time of delivery at . . ." the port agreed upon.