A special district that allows a variety of uses such as residential, shops, restaurants, universities, hospitals, hotels, leisure facilities, warehouses, etc. to optimize the land use potential in the mixed-use development and redevelopment.

A special district for the application of the Tax Increment Financing (TIF) Act to allow a company to cover the cost of public-infrastructure improvements with tax revenue generated in that district

A site that special United States Customs Service procedures may be used. These procedures allow domestic activity involving foreign material to take place prior to formal Customs entry. Duty-free treatment is accorded items that are re-exported and duty payment is deferred on items sold in the U.S. market..