The approval process for NMPA certification in China involves several critical steps, including document preparation, application submission, technical review, potential on-site inspections, and final certification. The timeline for approval depends heavily on the device classification, the completeness of the application, the need for clinical trials, and inspection requirements.For Class I devices, the process may take around 4–6 months, while Class II and III devices could take 6–12 months or longer, depending on their complexity. Manufacturers should prepare thoroughly and engage with regulatory experts to ensure a timely and efficient certification process.