Copyright Protection Center of China is the only software registration agency authorized by National Copyright Administration. The center will handle the procedure within 30 working days after receiving the registration application. The applicant shall supplement and correct the materials (if any) within 2 months after receiving the Notice for Supplementary and Correction, and the center will handle the procedure within 30 working days after receiving the supplementary and corrected materials. Urgent services for 3, 5, 10, 15 and 20 working days are provided, but additional fees shall be paid accordingly.