Pursuant to EXECUTIVE ORDER (EO) NO. 183 s. 2015, creating the Negros Island Region (NIR) and NIA Board of Directors’ Resolution No. 8327-16 s. 2016, issued last May 23, 2016. Followed by the NIA Memorandum Circular No. 32, s. 2016 dated June 20, 2016, NEGROS ISLAND REGIONAL IRRIGATION OFFICE (NIRIO) was created with Engr. Mario H. Sande as its first regional manager.
NIRIO is located in Bago City, about 21 kms. South of Bacolod City. It is composed of the Negros Occidental Irrigation Management Office (NOIMO) and Negros Oriental Satellite Office (NOSO). This covers four small reservoir irrigation systems, two national irrigation systems, (the Bago River Irrigation System and Pangiplan River Irrigation System), 159 communal irrigation systems and several on-going projects.