What certificates do welders have?

1. Welding and hot cutting operation certificate. Welding and hot cutting operation certificates can be referred to as "welder's operation certificate" for short, and also called "welder's work certificate". Issued by the Emergency Management Bureau (formerly the Safety Supervision Bureau), it needs to be reviewed once every three years and renewed once every six years.

2. Welder's professional qualification certificate The welder's professional qualification certificate can be referred to as "welder's grade certificate" for short. It is a welder's qualification certificate, issued by Ministry of Human Resources and Social Security, which reflects the welder's skill level, is the main basis for employers to recruit and employ, and is also a necessary certificate for employees' promotion, salary increase and title evaluation. It is divided into five grades: grade five (primary school) ....

3. Welding certificate of special equipment The welding certificate of special equipment, also known as "pressure vessel welder certificate", is issued by the Quality Supervision Bureau. This certificate is mainly for pressure vessel welders.