Some questions about FDA

FDA registration is no certificate, the product through the FDA registration. Registration number, the FDA will to the applicant a reply (with the signature of the FDA Commissioner), but there is no FDA certificate said.
FDA there is no designated certification laboratory?
FDA is a law enforcement agency, not a service agency. If some people say they are the FDA's Certification Laboratories, then he is at least misleading consumers, because FDA is not for the public service certification bodies and laboratories, there is no so-called designated laboratory".
FDA as a federal law enforcement agency, can not engage in this both when the referee and when the athletes. FDA will only be on the GMP quality of service testing laboratories to be recognized, qualified certificate issued, but not to the public "designated", or recommended a specific one or a few.
Does FDA need to be an American agent?
Yes, Chinese applicants must be assigned an American citizen (company / Organization) as their agent in the FDA registration process, which is in contact with the FDA and the applicant.