Professional Diver Training Center is a private commercial-diving school in Alvarado, Texas. Its 700-hour Professional Commercial Diver diploma combines classroom, laboratory, open-water and training-tank work. Welding-related study includes topside welding equipment, oxygen-acetylene cutting, and underwater cutting and welding, culminating in an Underwater Welding Course Completion Certificate aligned with AWS D3.6M Class C. The broader curriculum also covers diving physics and medicine, chamber operations, equipment maintenance, underwater tools, rigging and commercial-diving operations.