The National Irrigation Commission Limited is a Jamaican government agency responsible for managing the country’s irrigation infrastructure and water resources for agricultural purposes. Operating under the Irrigation Act 1949, NIC obtains its legal authority to utilize water for irrigation in designated areas and to conserve subterranean water resources.

NIC’s core functions include managing, operating, maintaining, and expanding irrigation schemes and systems established by the Government of Jamaica. The agency also provides specialized drainage services in the Black River area of St. Elizabeth Parish, covering the Black River from the sea to Lacovia Bridge, the Upper Morass area, the Y.S. River area, and other designated areas. Additionally, NIC is responsible for establishing and collecting rates and charges for water usage. The agency currently operates ten irrigation schemes across five irrigated areas as prescribed by the Irrigation Act.

Under Section 4(1) of the Act, the portfolio Minister may license a company to serve as the Irrigation Authority for 10-year periods, subject to approval by the House of Representatives, with NIC most recently receiving this authority in 2011.