Atlas Knowledge's Mechanical Joint Integrity (MJI) and Small-Bore Tubing (SBT) are the only ECITB approved online courses to provide the essential knowledge preparation for technical ECITB tests. They are designed to refresh experienced workers on their knowledge and understanding before they sit their technical test. Experienced workers applying directly to take their Stage 3 Technical Tests can use the online courses to update their knowledge. Individuals that need to re-validate their 3-year certification can also refresh their knowledge before undertaking their Stage 4 Reassessment.