This paper does not attempt to present a complete or complex description of subcharter issues. It is simply an attempt to illustrate the certain degree diversity of this institution based on the example of selected problems regarding events which often occur during this type of vessel employment. By a contract of time - charter the ship's operator undertakes for remuneration to place at the disposal of the charterer a manned vessel for a specified period of time or for the duration of one or several consecutive voyages for the purpose as provided by the contract. Within the limits of rights as determinet by the contract, the charterer may conclude a contract of time - charter with a third person (subcharter). No doctrinal papers have been published on the subject of subcharter. Not are there any Polish judicial verdicts in the field of time charters. Polish literature on this subject is scant, but, as justification for this it must be said that subcharter is not widely discussed in the English language literature either. The most abundant source of information on subcharter comes from arbitration decisions handed down by courts in London and New York.