Complaints About the Global Trust Certification (GTC) Process or GTC Clients

Global Trust Certification (GTC), an NSF company, accepts all written complaints about the GTC process and about GTC-certified clients.
Worker in warehouse with bucket of fish - Global Trust Certification (GTC) Process or GTC Client Complaints | NSF

Who Can Submit a Complaint?

If you wish to submit a written complaint about the Global Trust Certification (GTC) process or GTC clients, NSF will accept your written complaint. This applies to any individual, organization, worker or employee of a certified client, scheme owner or other interested party.

GTC will address written complaints in accordance with its complaints-resolution procedures.

How to Submit a Complaint

Please email your complaint to any member of the GTC staff, or to When you notify GTC about your complaint, please include the following information:

  • All details related to the complaint
  • Any evidence that supports your complaint