If this installation is construction work inside the factory, which is in the process of work, contractor and the contractor's personnel shall comply with regulation of the plant by regulators.
If construction work was installed in the factory. Situated in operation Contractors and employees of contractors must follow. According to statistics of the factory strictly.
If this installation construction is in the factory. The live during the work. Vacationer taxi and staffs of vacationer drivers must follow. It according to the regulations of the factory strictly.