If there is an internship class in the curriculum of your department, this internship is a compulsory one.
Compulsory internships are coordinated by faculty members and faculty secretariats. You can ask your questions and problems in this regard to the faculty secretaries.
If the company want to see that your internship is approved by the university, you might take a copy of the Internship Acceptance Form before submitting.
For further questions: firstname.lastname@example.org