This publication provides introductory technical guidance for civil engineers, structural engineers and other professional engineers and construction managers interested in welding quality control and inspection. Here is what is discussed: 1. GENERAL, 2. REVIEWING AND APPROVING WELDING PROCEDURES, 3. WELDING PERSONNEL QUALIFICATION, 4. INSPECTOR QUALIFICATIONS, 5. INSPECTION CATEGORIES AND TASKS, 6. WELD QUALITY, 7. REPAIRS TO BASE METAL AND WELDS.