Can environmental engineers only be affiliated with companies in the environmental protection industry? Can you call the company? Are there any special requirements for the company's qualifications?

There are requirements for the company's qualifications, and two-way selection is required. Reason:

(1) Consulting companies have no environmental protection qualification, and generally do not need environmental guarantee, because it cannot bring benefits.

(2) The consulting company has no environmental protection qualification, and the competent department of environmental protection industry generally will not approve it and cannot register it.