Performance certificates usually have the following requirements:
1, the letter of acceptance and/or the contract agreement, the completion acceptance certificate of highway project (bid section) issued by the employer, the completion acceptance certificate of highway project issued by the completion acceptance committee or the copy of the comprehensive evaluation grade certificate issued by the quality supervision institution to all contractors.
2. If the legal person institution of the bidder changes or reorganizes or changes its legal person name in recent years, it shall provide legal documents of relevant departments or other relevant certification materials to prove the inheritance of its attached performance.