Erjian is a second-class builder.

Anyone who abides by the law and meets one of the following conditions can sign up for all subjects of the second-level constructor examination:

1, with technical secondary school degree or above in engineering or engineering economics and engaged in construction and management of construction projects for two years;

2, with other professional secondary school education and engaged in construction management for 5 years;

3. Engaged in construction and management of construction projects 15 years.

The second-level constructor is an architectural professional qualification and a necessary condition for being a project manager.