IAM will base on the application information (estimated date to commence work and work period), expiry date of license for works issued by the Land and Urban Construction Bureau, expiry date of temporary traffic measures and the expiry date of the insurance policy to decide the valid period of the license for works; The applicant is required to consider thoughtfully the estimated date to commence work and the work period in the license for application, and complete the work within the valid period of the license. If the work cannot be completed within the valid period of the license, the license holder has to apply for renewal of license within the valid period to IAM;