Is cold heading a special type of work?

Cold heading is a special type of work. The former Ministry of Labor designated underground, high altitude, high temperature, heavy physical labor and toxic and harmful operations as special operations, and made it clear that the scope of special operations was determined by the competent departments of various industries or labor departments. Special type of work is not a formal concept, but a conventional name. Therefore, there is no formal definition of it in standards or regulations. Special jobs are different from special operations.