1. Both parties do not need to sign the traffic accident certificate. Traffic accident responsibility confirmation's failure to sign does not affect the legal effect of liability determination and can be served on the other party. If you have any objection to the identification of traffic accidents, you can apply to the traffic management department of the public security organ at the next higher level for review within the prescribed time limit after receiving the confirmation. The application for re-examination shall specify the request for re-examination and its reasons and main evidence.

2. Legal basis: Article 93 of the Regulations for the Implementation of the Road Traffic Safety Law of the People's Republic of China.

The traffic administrative department of the public security organ shall make a traffic accident determination within 10 days from the date of investigation of the site. If inspection and appraisal are needed, a traffic accident confirmation shall be made within 5 days from the date when the inspection and appraisal results are determined.

Article 94

If the parties are in dispute over the compensation for traffic accident damage, and all parties unanimously request the traffic administrative department of the public security organ to mediate, they shall submit a written mediation application within 10 days from the date of receiving the traffic accident confirmation.

If a traffic accident causes death, mediation shall begin from the date when the funeral is completed; For injuries caused by traffic accidents, mediation shall be started from the date of the end of treatment or disability; If a traffic accident causes property losses, mediation shall begin from the date of determining the losses.

Second, what is the handling process of the other party's full responsibility for traffic accidents?

1. When a rear-end collision occurs on the road, the driver of the vehicle shall immediately stop to protect the scene;

2. If there is a rear-end collision on the road and no personal injury or death is caused, the parties concerned may negotiate for damages by themselves. If personal injury or death is caused, the driver of the vehicle shall immediately rescue the injured and report to the traffic police on duty or the traffic management department of the public security organ in time;

3. If the vehicle escapes after a traffic accident, witnesses and other insiders at the scene of the accident shall report to the traffic management department of the public security organ or the traffic police;

4. After the accident, the danger warning flash should be turned on continuously, and measures such as setting warning signs in the direction of incoming vehicles should be taken to expand the warning distance and call the police quickly if necessary;

5. When the parties to the accident have no dispute about the facts of the accident, record the time and place of the traffic accident, the name and contact information of the other party, the motor vehicle number, the driver's license number, the insurance certificate number, and the collision place, and after signing together, leave the scene by themselves and negotiate to determine the damage. If a party disputes the facts and causes of a traffic accident, it shall call the police in time.