ASME S-3-Section I Boiler Manufacture (FIELD ONLY), ASME U-6-Sec. VIII, Div 1 Pressure Vessel Mfr. (FIELD ONLY), ASME U2-5-Sec. VIII, Div 2 Pressure Vessel Mfr. (SHOP & FIELD), Boilers & Pressure Vessels Repair/Alteration (FIELD ONLY), Power Piping Installation ASME B31.1 (FIELD ONLY), Process Piping Installation ASME B31.3 (FIELD ONLY)