BB. This abbreviation can be and is used for a variety of different terms such as: "Ballast Bonus", "Below bridges", "Breaking bulk" and "Bulbous bow".
Booking office. Conference lines, operating in certain trades, may decide to establish a booking office to take bookings and also ensure that each line carries its agreed share. Shippers may not be permitted to insist on carriage by a specific line although the booking office may try to meet shippers’ wishes in this respect as much as possible.
Broker. In the context of chartering, the most common "broker" is a "shipbroker". In general, in shipping, a broker is a person who acts as a "middleman" between two parties and negotiates the terms of a contract into which the two parties enter. The broker acts as an agent and usually represents only one of the parties, negotiating with the other party directly or with another broker representing the other side. In addition to a shipbrokerwho can be an owner's broker or a charterer's agent negotiating a charter.
Ballast. In order to increase the stability of ships, which have to be dispatched without cargo and to ensure that the propeller will be immersed sufficiently, say about two-thirds of its diameter, a sufficient quantity of ballast will be loaded before sailing. The quantity of ballast depends on the type of vessel, quantity of water which can be taken in the ballast tanks and also the voyage to be made. Seasonal weather conditions which may be expected on the voyage must also be considered.
Black list. Because oil tankers frequently load oil from Islamic countries these countries may place certain ports on a "black list" such as Israeli or South African ports, and if tankers are known to have called at ports in those countries, the tankers' names are on this black list and the ship can be boycotted and refused entry or cargo.