Bulkheads. These are steel divisions across the vessel either transversely or fore and aft. The functions of bulkheads are:
Baltic Exchange. Situated in London, England, this is the foremost shipping market-place in the world. Shipbrokers meet in the Exchange daily to charter ships and to exchange information. Trade is also carried out in commodities such as grain. The Baltic also lends its name to an "Index", the Baltic Freight Index (BFI). Since 1985 there has been a development of freight futures (BIFFEX), and these are also transacted on the "floor" of the Exchange.
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.
Blockade. Belligerent powers have the right of blockade, i.e., the right to blockade enemy ports or coastal territory for ocean shipping by military measures.
The blockade must be respected by neutral states. Running a blockade, if unsuccessful, may entail boarding and searching for contraband and confiscation of ship and cargo.
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.