What is the requalification frequency for welders working on steam pipes?

Welders working on steam pipes must undergo requalification every three years to ensure they maintain the necessary skills and meet current safety and quality standards. This three-year cycle is in place to account for potential skill degradation over time and to keep welders updated on any changes in welding technology, techniques, or regulations. Regular requalification also enhances the overall safety of operations involving high-pressure systems like steam pipes, where the integrity of welds is critical. By establishing a three-year interval, it balances the need for safety without overburdening welders with excessive requalification requirements.