Is there a time limit for the qualification of engineering cost consultation?

1, the qualification of engineering cost consultation has a time limit, generally 3 years. 2, the expiration of the validity period of qualification, need to continue to engage in engineering cost consulting activities, shall apply to the qualification licensing authority for qualification renewal 30 days before the expiration of the validity period of qualification. 3. The qualification licensing authority shall make a decision on whether to grant the extension according to the application. If the extension is granted, the validity period of qualification shall be extended for 3 years.