Gasunie is one of the biggest gas infrastructure companies in Europe. Within the company, we give safety the highest priority; it forms the basis of our license to operate. We abide by the strictest safety, health and environmental standards, both for our own employees, external contractors and the surroundings. Gasunie’s safety policy is thus characterised by a proactive approach which is designed to prevent accidents, incidents and hazardous situations. Besmette filterkaars

General rules Familiarise yourself with the situation at the installation or construction site where you are going to work as soon as possible Make sure you know who and what is where Apply precautionary measures that are appropriate to the work you are going to carry out Make enough time for safety: think about what could go wrong and consider whether you have done everything you can to prevent any risky conditions Remain alert at all times when you are working. If in any doubt, always ask or suspend activities where necessary.

The 10 golden rules of safety These rules apply to everyone in the company, including temporary hire staff and contractors’ personnel. The purpose of these rules is to further improve risk and safety awareness throughout the company as a whole. These are not new rules, but indicate where Gasunie wants to place the emphasis. 1. Carry out excavation work safely 2. Make sure that a closed room can be safely accessed 3. Work safely at heights (> 2.5 metres) 4. Never walk or work under a hoisting load 5. Drive safely 6. Make sure you have a full and valid work permit/license to work 7. Make sure you only work on equipment that has been made secure 8. Use the prescribed personal protection equipment (PPE) 9. You are prohibited from working under the influence of alcohol or drugs 10.Do not smoke outside designated smoking areas

Safe excavation Follow the KLIC procedure during excavation work Only carry out excavation work following coordination with the project manager Dig test trenches if necessary Make sure a closed room can be safely accessed Never enter the room without a safe access label Always position a designated safety monitor outside the entrance Take regular measurements of the oxygen concentration present Ensure suitable rescue, protection and communications equipment Only work with safe electrical voltages Work safely at heights (>2.5 metres) Only work on scaffolding which has been given a safe access label Where necessary, use a fall prevention belt Only work on a ladder if it is stable and has been erected under the right corner Be alert to the risk of falling materials

Never walk or work under a hoisting load Never enter a cordoned off area which contains a hoisting load without permission Always follow the instructions Make sure there is a clear and correct division of roles and communication Avoid hoisting loads over gas supply pipelines Drive safely Abide by the traffic regulations, including at installations Start any journey well rested and take a break from driving if you are tired Make sure your load isn’t dangerous Always remain fully alert when you are driving Never make or answer calls while driving, unless you are doing it to prevent an (impending) accident Adapt your driving style to changing circumstances (fog, low sunlight, ice)

Make sure you have a full and valid work permit/license to work Clearly outline the work that has to be done Identify the risks involved and discuss the appropriate measures Check that the workplace is safe, including when extending / reducing the length of work permits Make allowances for other work that may be going on in the area When extending the length of work permits, check to make sure that circumstances haven’t changed Make sure you only work on equipment that has been made secure A designated person should make the process or equipment safe and check that it continues to be so (product-free and voltage-free) Make sure that labels/locks and bridging sections are installed, removed and registered To measure is to know! Regularly test or measure whether the situation is still safe Use the correct, inspected and properly calibrated measuring instruments

Use the prescribed personal protection equipment (PPE) Only use approved PPE Challenge each other for not wearing PPE Regularly check the condition of your PPE You are prohibited from working under the influence of alcohol or drugs No alcohol or drugs while working or driving Be aware that traces of alcohol or drugs may remain in your blood Be aware of the possible side-effects of medicines Intervene if someone at work is using alcohol or drugs Do not smoke outside designated smoking areas The smoking policy must be strictly adhered to If there is no specific smoking ban, consult the project manager/supervisor