Title: Safety Regulations for Third Parties  Document ID  Version 9.2  IMS-PTT-S6.5-WIN-0001  Page 7/17   the estimated duration of completion the project exceeds 30 working days, and where more than 20  employees will be working on the construction project on the same time; or   more than 500 working days are involved in completing the construction project Excavation works;   Working on height;   Working in confined space;   Lifting and hoisting;   Excavation works;   Working with open fire or sparks or dust producing tools;   Working with hazardous substances;   Building, terrain and road maintenance work (e.g. working with wheel loaders, aerial platforms, brush  cutters, mowers, high pressure cleaners, motorized chainsaws, hedge trimmers, spraying weed killers  and pesticides)  Before starting the work activities, the contracted company must liaise with the JRC Representative for any  3.1.10 possible additional information. When the work activities will affect the infrastructure of the JRC-Petten site, the work activities shall not  3.1.11 start before permission is granted by the sector INFRASTRUCTURE. Work activities that must be carried out in laboratories or workshops may be started only after consultation  3.1.12 and approval of the Area Responsible. The name of the Area Responsible is displayed at the entrance of  laboratory or workplace. In case of doubt, the JRC Representative might be contacted.  The person who has contracted the contracted company will appoint a staff member as JRC Representative.  3.1.13 The JRC Representative will:   Organize meetings with the Area Responsible, the Installation Responsible and other experts to discuss  the work to be executed, the planning of the work activities, and the additional safety information the  contracted company and its personnel might need to know;   Provide information to the personnel of the contracted company on the applicable safety rules (as a  minimum the JRC Introduction video), and inform them about any known specific hazards and control  measures in place in the work area;   Check if the work activities are planned and executed in such a way that they do not cause dangerous  situations to JRC staff, and other persons present on, or nearby the JRC-Petten site;   Check if work permits have been requested and granted whenever they are mandatory;   Check if the work activities are carried out in compliance with applicable health, safety and  environmental legislation, and the safety regulations imposed by JRC-Petten.  TRAs must be carried out. Before the activities can start, the JRC Representative and SES have to approve  the TRA. In case of doubt if for a certain activities a TRA is required the JRC Representative might be  contacted. The form in annex B: "Task Risk Assessment for High Risk Activities" might be applied for  preparing a TRA.  a H&S-Plan, including TRAs, must be prepared, and a Health and Safety Coordinator must be appointed.  Before the activities can start, the JRC Representative and SES have to approve the H&S-plan.  For smaller projects containing activities with high risks such as  3.1.9