Multiple Process Welding Occupational Skills Award (OSA) Certification Exam

Multiple Process Welding Occupational Skills Award (OSA) The OSA assumes you’ve already mastered single-process welding fundamentals—SMAW, GMAW, or FCAW basics—before tackling multiple processes simultaneously. Transitioning between shielding gases, electrode types, and heat management across different joint configurations demands solid prior hands-on experience. Without foundational competency in bead placement and metallurgy, the complexity multiplies significantly.