Outside special bulk cargo markets, ships are hired by three types of charter agreements: the voyage charter, the time charter, and the bareboat charter.[79] In a voyage charter, the charterer rents the vessel from the loading port to the discharge port.[80] In a time charter, the vessel is hired for a set period of time, to perform voyages as the charterer directs.[80] In a bareboat charter, the charterer acts as the ship's operator and manager, taking on responsibilities such as providing the crew and maintaining the vessel.[81] The completed chartering contract is known as a charter party.[82]