TÜV Certification is a product and system certification process managed by TÜV (Technischer Überwachungsverein), which translates to "Technical Inspection Association" in English. TÜV organizations, such as TÜV SÜD, TÜV Rheinland, and TÜV Nord, are globally recognized independent testing, inspection, and certification bodies based in Germany. TÜV Certification indicates that a product, system, or process has been tested and meets the necessary safety, quality, and regulatory standards.
Reference:
Product certification: Product testing and test mark as proof of quality