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The validity period of the first-class constructor's electronic certificate.
The validity period of the electronic certificate of the first-class constructor is 180 days. It is invalid if it exceeds the service life. You need to download the e-cert again and reconfirm the usage time limit.

Since June 65438+1 October1day, the first-class builders have uniformly used electronic certificates, and the paper registration certificate has become invalid. During the parallel use of electronic certificate and paper registration certificate, if the information is inconsistent, the information of electronic certificate shall prevail. After downloading and printing the electronic certificate, you need to write your own signature at the signature. If it is not written or inconsistent with the handwriting of the signature image, the electronic certificate is invalid.

Anyone who abides by national laws and regulations and meets one of the following conditions may apply to take the first-class constructor qualification examination:

1, obtained a college degree in engineering or engineering economics, and worked for 6 years, including 4 years in construction management of construction projects.

2. Obtain a bachelor's degree in engineering or engineering economics, and have worked for 4 years, including 3 years in construction management of construction projects.

3. Graduated from double bachelor's degree or postgraduate class in engineering or engineering economics, and worked for 3 years, including 2 years in construction management of construction projects.

4. Get a master's degree in engineering or engineering economics, and have worked for 2 years, including construction management of construction projects 1 year.

5. Get a doctorate in engineering or engineering economics, and have been engaged in construction management of construction projects for 1 year.