The validity period of the NMPA registration certificate for EEG machines in China typically lasts for five years. This duration is standard for most Class II and Class III medical devices registered with NMPA.

During this validity period, the manufacturer or holder of the registration certificate is authorized to market and sell the EEG machines in China, provided they comply with all regulatory requirements, including post-market surveillance and reporting obligations.

It's important for manufacturers to monitor the expiration date of their registration certificate and initiate the renewal process in a timely manner to ensure continuous market access for their EEG machines in China. Renewal typically involves demonstrating continued compliance with regulatory standards and submitting updated documentation as required by NMPA.

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