ISO 45001 for construction

In the Dutch construction sector, VCA  is the standard for occupational safety. But ISO 45001  is coming up more and more, especially on international projects and with international clients. The standard is available from NEN , the Dutch standards body. When should a construction company choose ISO 45001? And how does it compare with VCA?

VCA or ISO 45001 in construction?

Most construction companies in the Netherlands hold VCA. It is the common requirement in tenders, for work for housing associations and for projects in industry. VCA was developed specifically for sectors where physically hazardous work takes place.

ISO 45001 is less common in traditional construction, but it is gaining ground. International clients do not know VCA and ask for ISO 45001. On projects with foreign partners, ISO 45001 is the shared language. Organisations that want a complete management system sometimes choose ISO 45001 because it integrates better with ISO 9001 and ISO 14001.

The right choice depends on your client base and your ambitions. Do you mainly work for Dutch clients in traditional construction? Then VCA is probably enough, and often required. Do you work internationally or for clients who prefer ISO? Then ISO 45001 is the logical choice.

Some construction companies hold both certifications. They keep VCA for the Dutch market, where it is mandatory, and hold ISO 45001 for international projects or as part of an integrated KAM system (quality, safety and environment).

Typical hazards in construction for ISO 45001

Construction has many different risks, and they change constantly. Every site is different, and every project phase brings other hazards.

Working at height

Falls from height are one of the main causes of serious accidents in construction. Working on scaffolding, roofs, ladders or in cherry pickers: wherever there is a height difference, there is a risk of falling.

Control measures start with collective protection, such as guardrails and edge protection. Where collective measures are not possible, individual fall protection such as harnesses is used. Workers need training in safe working at height and in using personal protective equipment (PPE). Supervision and checks make sure the rules are followed.

Falling objects

Materials and tools can fall and hit people. This risk exists on every site where work takes place at height.

Standard measures include shielding work areas, securing tools and materials, wearing safety helmets, and clear communication about work happening above and below each other.

Excavation and trench collapse

Groundwork carries the risk of trenches and pits collapsing. Being trapped in a collapsing trench is a serious risk that kills people every year.

Shoring up trenches, sloping the sides of deep excavations, never working alone in a trench, and having clear procedures for excavation work are essential.

Machines and vehicles on site

Cranes, lifting equipment, excavators and lorries: a construction site is full of moving machines. Being run over, crushed and falling loads are real risks.

Traffic plans, separating pedestrians from vehicles, qualified machine and crane operators, and good communication between ground workers and machine operators are necessary.

Exposure to substances

Silica dust from cutting stone, wood dust, asbestos during demolition, welding fumes and exhaust gases: construction involves many kinds of exposure.

Control means dust-free working methods where possible, proper extraction and ventilation, and respiratory protection where needed. Strict legal requirements apply to asbestos.

Electrical risks

Working near or on electrical installations carries a risk of electrocution. Common causes include cables hit by accident during groundwork, temporary installations on site, and contact with live parts.

Basic measures include isolating the power before work, using residual current devices (RCDs), reporting to KLIC (the Dutch national cable and pipeline information service) before groundwork, and giving workers proper instruction. Under NEN 3140, the Dutch electrical installation standard, anyone working on site power distribution boards or installations needs a written appointment. You can read how this works at appointing a VP and VOP.

Implementing ISO 45001 as a construction company

The changing workplace

A challenge in construction is that the workplace keeps changing. Every site is different, and every phase brings other risks. A factory has a fixed layout, but construction is dynamic.

ISO 45001 requires you to manage this changeability in a systematic way. Hazard identification is not a one-off exercise but an ongoing process. You reassess the risks for each new project and each new phase.

In practice, this means risk assessments per project, work and safety plans per site, regular workplace inspections, and toolbox meetings that address current risks.

Coordination with other parties

Several parties often work on the same site: main contractor, subcontractors, suppliers and the client. ISO 45001 requires you to control the safety of all these parties.

The standard requires procedures for outsourcing and contractors. What requirements do you set for subcontractors? How do you coordinate safety when several parties work at the same time? Who is responsible for what?

This links to the legal duty to coordinate under the Arbobesluit (Dutch Working Conditions Decree). ISO 45001 goes further by requiring you to build this coordination into your management system.

Worker participation on site

Worker participation can be challenging in construction. Workers are spread across different locations. Team compositions change. Time pressure is high.

Even so, participation is especially important in construction. The people on site see the risks first. A site manager who sees the situation every day knows more than someone in the office.

Practical forms include start-of-shift briefings at the beginning of each working day, toolbox meetings on site, reporting systems for dangerous situations, involvement in the health and safety plans (V&G-plans), and regular consultation with site managers and foremen.

The V&G-plan and ISO 45001

For construction projects, a health and safety plan (Veiligheids- en Gezondheidsplan, or V&G-plan) is legally required. The plan describes the safety measures for the specific project.

The V&G-plan fits within ISO 45001 as part of operational planning and control. The standard requires you to set criteria for processes and implement control measures. The V&G-plan puts these into practice for a specific project.

Make sure your V&G-plans are consistent with your overall health, safety and wellbeing (G&VW) management system. The general procedures in your system are translated into project-specific measures in the V&G-plan.

Combining ISO 45001 and VCA in construction

If you want or need both ISO 45001 and VCA, you can integrate the two systems. There is overlap: both cover occupational safety, and both require risk assessments, procedures and training.

The challenge is that VCA has a different structure from ISO 45001. VCA does not follow the High Level Structure. You cannot map it one-to-one.

In practice, you can use ISO 45001 as the base and make sure you also meet the specific VCA requirements: the required certificates, the minimum number of toolbox meetings, and the records VCA asks for. A well-run ISO 45001 system covers most of VCA, but you still need to address the specific checklist items.

Benefits of ISO 45001 over VCA for construction companies

Why would a construction company choose ISO 45001 instead of VCA alone?

International recognition is an important argument. On projects with foreign partners or clients, ISO 45001 is the standard. VCA is hardly recognised outside the Benelux countries.

Integration with other standards is easier. ISO 45001 combines smoothly with ISO 9001 and ISO 14001 in an integrated KAM system. VCA has its own structure, which is harder to integrate.

Flexibility is greater with ISO 45001. The standard states what you must achieve, not exactly how. VCA is a checklist with specific requirements. Larger organisations with their own approach sometimes fit ISO 45001 better.

A management system approach goes further than a checklist. ISO 45001 requires you to integrate safety into your operations, with objectives, monitoring and continual improvement.

When VCA is enough

VCA remains the standard for many construction companies, and rightly so. For a small or medium-sized construction company that mainly works for Dutch clients in traditional construction, VCA is often the best choice.

VCA is requested and accepted. The checklist makes clear what you need to do. The costs are manageable. Your staff will need VCA certificates in any case.

Only consider ISO 45001 if you have international ambitions, if clients ask for it, or if you want an integrated KAM system.

Next step

Read more about the difference between ISO 45001 and VCA, about the specific situation for ISO 45001 for contractors (client requirements, subcontractors, and which choice to make when), or follow the step-by-step plan if you want to start with ISO 45001.