Duty

A legal obligation that entails mandatory conduct or performance. With respect to the laws relating to CUSTOMS DUTIES, a tax owed to the government for the import or export of goods.

A fiduciary, such as an executor or trustee, who occupies a position of confidence in relation to a third person, owes such person a duty to render services, provide care, or perform certain acts on his or her behalf.

In the context of NEGLIGENCE cases, a person has a duty to comport himself or herself in a particular manner with respect to another person.