Precautions for traffic accident disability identification are as follows:
 （1） The party concerned shall actively cooperate with the appraisers, actively provide relevant injury data, physical evidence and inspection materials, and truthfully accept the inquiry, investigation and inspection of the appraisers;
 （2） In the process of identification, fraud and perjury shall not be allowed. If perjury is provided, corresponding civil liability shall be borne; If a crime is constituted, criminal responsibility will be investigated;
 （3） The party concerned shall not change the contents of the forensic medical expertise without authorization, otherwise the expertise will be invalid;
 （4） If you are not satisfied with the conclusion of the forensic appraisal, you can apply for a new appraisal by the appraisal department jointly recognized by both parties or designated by the public security and judicial authorities according to law;
 （5） After the appraisal, the party concerned shall properly keep the returned relevant materials, material evidence and inspection materials for future use.
 [Legal Basis]
 According to Article 49 of the Provisions on the Procedures for Handling Road Traffic Accidents, if it is necessary to conduct inspection and appraisal, the traffic management department of the public security organ shall, in accordance with relevant regulations, entrust a qualified appraisal institution to conduct inspection and appraisal within three days from the end of the on-site investigation of the accident.
 The autopsy shall be entrusted within three days from the date of death. The inspection and identification of the hit and run vehicles shall be entrusted within three days from the date of finding the suspected hit and run vehicles.
 If it is necessary to conduct inspection and appraisal three days after the completion of the on-site investigation, it shall be reported to the traffic control department of the public security organ at the next higher level for approval.
 The appraisal of mental diseases shall be conducted by an appraisal institution with the qualification for appraisal of mental diseases.