Functions and Responsibilities of the Officer-in-Charge DPWH Interim Regional Office, CAR. Category: Department OrderSub Category: areas-responsibilities-authority-designationSeries: 1988No: 20File: DO_020_S1988.pdfDate: Tuesday, March 1, 1988Tags: Functions Responsibilities OIC Interim Regional Office areas 020 Read more about Functions and Responsibilities of the Officer-in-Charge DPWH Interim Regional Office, CAR.