The most widely used welding code in North America, and perhaps the world, is AWS D1.1/D1.1M Structural Welding Code – Steel. It is specified as the quality standard in hundreds of contract documents every year. The number one reason why fabricators turn to AWS D1.1 is to qualify welding procedures and welders.Click to see full answer. Then, what is a AWS d1 1 certification?Welding Certification Test Kits. One of the most common welding codes is AWS D1. 1 which covers structural steel welding like for a car trailer, a machine support or a handrail. This welding codes states that the “certification” of a welder is the responsibility of that welder’s employer.Furthermore, what is a Class 1 Weld? A Class 1 weld is defined as a structural weld requiring the most stringent level of inspection. The determination of a Class 1 weld is the responsibility of the designer and shall be noted on the manufacturing drawings. Also to know is, what is the latest edition of AWS d1 1? 1 Structural Welding Code – Steel Now Available. MIAMI–(BUSINESS WIRE)–A revised edition of the American Welding Society’s Structural Welding Code – Steel, AWS D1. 1/D1. 1M:2015 has been published which supersedes the 2010 edition.What is AWS Welding Code?The most commonly used codes are from the AWS (D1. 1) and ASME (Section IX). The difference between ASME and AWS is that ASME is for welding procedure and welder qualification. AWS is for both welder and welding procedure qualification including inspection, erection and fabrication.