The assessment and certification of welder's special operation certificate (non-pressure equipment welding) shall be the responsibility of the safety supervision bureau. The welder's special equipment operation certificate (welding equipment under pressure) shall be examined and issued by the Quality Supervision Bureau.

The scope of application of certificates is different.

Ordinary people go to the safety supervision bureau. If your company has special equipment, you need to take the latter.

Different training contents

Should be qualified for welding of general special equipment, and should learn general welding contents during training.

The certificate level cannot be replaced.

And it can be from high to low, but it can't be replaced by low.

Operating range regulation

I think so, too. The General Special Operation Qualification Certificate has provisions on the scope of operation.

Use certificate

When welding special equipment, you must hold the welding certificate of special equipment, otherwise it will violate the "Special Equipment Safety Law" to work without a license. As long as it is welding, it is necessary to hold the operation certificate of the safety supervision bureau, otherwise it is illegal.