A DefinedRegion is a geographic area defined by potentially arbitrary (rather than political, administrative or natural geographical) criteria. Properties are provided for defining a region by reference to sets of postal codes.

Examples: a delivery destination when shopping. Region where regional pricing is configured.

Requirement 1: Country: US States: "NY", "CA"

Requirement 2: Country: US PostalCode Set: { [94000-94585], [97000, 97999], [13000, 13599]} { [12345, 12345], [78945, 78945], } Region = state, canton, prefecture, autonomous community...