Certifications Bell-Camp has been Canadian Welding Bureau approved since 1988 and has continued to advance by achieving our ISO 9001-2000 registered Quality Management System in 2002. Our recent ASME ‘U’ Stamp authorization to manufacture Pressure Vessels. Bell-Camp is also certified to manufacture CSA B51 Pressure Vessels and CSA B31.1 & B31.3 by the TSSA in the Province of Ontario.