Amendment to D.O. No. 37 Series of 2006 on the Guidelines on Liaison/Messengerial Works. Category: Department OrderSub Category: human-resourceSeries: 2011No: 16File: DO_016_S2011.pdfDate: Tuesday, March 22, 2011Tags: D.O. 37 S. 2006 Guidelines Liaison Messengerial Works human 016 Read more about Amendment to D.O. No. 37 Series of 2006 on the Guidelines on Liaison/Messengerial Works.