Every welder that we employ is tested on the approved welding procedures that we strictly enforce. Each test that our welders perform is graded on both visual inspections, PT inspection, and then sent out to a third party inspection firm for further evaluation and approval. Once our welders pass a procedure, we carefully record continuity logs on the individual welders. This ensures that they weld under each procedure they are qualified to conduct, for at least once within a three month period. If a weld is not preformed under a given procedure, the welder must start the process over.