Training by HDPE, Inc. | Jun 28, 2016 | 1 comment 1 Comment Justin Eyler on October 19, 2016 at 6:03 pm I have been welding (Butt Fusion) welding MDPE/HDPE pipe for many years now, until just recently I’ve been asked to provide my certification for Butt Fusion and HDPE Weld Inspection. Im currently installing approx 5000 feet of 2″ HDPE at an Army reserve location in Maryland. This is the first time I have been asked to provide any documentation. Do you offer certification ? Online? In person? Submit a Comment Cancel replyYour email address will not be published.Comment Name Email Website Notify me of new posts by email.