4, working procedure4.1 classification of changesChanges in 4.1.1 quality, environment and occupational health and safety management system.4.1.2 project construction quality, environment, occupational health and safety of the implementation of the program changes.4.1.3 construction specifications, standards and changes in the construction of technical documents.4.1.4 personnel changes in the quality, environment, occupation health and safety management of professional management personnel, construction personnel, special operations personnel and so on.4.1.5 changes in materials, equipment and facilities (equipment), etc..The change of emergency plan in the construction process of 4.1.6.4.2 change request
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