Amending Department Order No. 112, Series of 1988, re Delineation of Areas of Responsibilty of Under Secretary. Category: Department OrderSub Category: areas-responsibilities-authority-designationSeries: 1989No: 45File: DO_045_S1989.pdfDate: Tuesday, April 25, 1989Tags: Delineation Areas Responsibilty Under Secretary 045 Read more about Amending Department Order No. 112, Series of 1988, re Delineation of Areas of Responsibilty of Under Secretary.