The Bureau of Quality and Technical Supervision rechecks the certificates of lifting machinery operators. The certificate of special equipment operators can be hung in another company for review. Article 21 of Order No.30 of the State Administration of Work Safety, Provisions on the Administration of Safety Technology Training and Assessment for Special Operators, stipulates that:

The special operation certificate is reviewed every 3 years 1 time. Special operators who have been engaged in this type of work continuously for more than 10 years within the validity period of the special operation certificate, and strictly abide by the relevant laws and regulations on production safety, may extend the review time of the special operation certificate to every 6 years 1 time with the consent of the original assessment and certification authority or the assessment and certification authority of their unit.

Special operators include:

Other operations approved by the former State Economic and Trade Commission, such as electrician operators, metal welding and cutting operators, lifting machinery operators, special motor vehicle drivers in the field (factory), climbing and erection operators, boiler operators (including water quality inspection), pressure vessel operators, refrigeration operators, vertical transport machinery operators, installation and disassembly workers, lifting signal workers, etc.

Special safety operation training refers to the training of special operators organized by the relevant competent departments, that is, special operators must conduct special safety technology theory study and practical operation training suitable for this type of work before taking up their posts independently. Only after passing the training and examination and obtaining the qualification certificate for special operations can they work at their posts.

Refer to the above content: Baidu Encyclopedia-Special Equipment Operators