Legal analysis: Woodworking and related professional carpentry are awarded by China Architectural Education Labor Association; Woodworking vocational skills post training is divided into three levels from low to high: junior technician, intermediate technician and senior technician, which is the basis for evaluating the vocational skills of employees in housing and urban and rural construction industries; It is universal in housing and urban and rural construction industries.

Legal basis: Article 2 of the Regulations on Individual Industrial and Commercial Households: Citizens who have the ability to operate are individual industrial and commercial households registered by the administrative department for industry and commerce in accordance with the provisions of this Ordinance.

Individual industrial and commercial households can operate independently or at home.

The legitimate rights and interests of individual industrial and commercial households are protected by law, and no unit or individual may infringe upon them.