GGB No to all three. The permit, the layout assessment, the platform registration and every item registration are decided by Dubai Municipality. Certification is earned by your Person in Charge from the recognised bodies. Submissions are made under your establishment’s account with your Person in Charge as the responsible person. What GGB does is the owner-side work around them: the checklists, the documents, the sequencing against your fit-out and opening, and the coordination so each request reaches the authority complete and in order.
From FoodWatch & Food Product Registration — the full reading, with the method behind this answer.