As a parent, there's one thing you want to be absolutely sure of: that your child is in safe hands at childcare. You notice the childcare worker's smile, the colorful play corners, and the smell of freshly baked bread. But beneath that surface, legal rules play a crucial role in your child's safety. The four-eyes principle is one of them. What exactly does this mean, when may a location deviate from it, and how can you as a parent check whether it's really properly arranged?
What exactly is the four-eyes principle?
The four-eyes principle means that in daycare for children aged 0 to 4, there must always be at least two adults present who can see or hear each other. They don't need to stand right next to each other constantly, but must remain within sight or hearing distance. This rule is set out in the Wet IKK (Childcare Innovation and Quality Act) and applies to all daycare centers (kinderdagverblijf/KDV) in the Netherlands.
Why is this so important? First, it provides protection against unsafe situations. A second adult can intervene, observe, and bear witness. Second, it helps in emergencies: if one staff member needs to resuscitate a child or take them to the doctor, someone always remains with the group. And third, it improves the quality of care itself. Two pairs of eyes see more than one; a colleague can keep things sharp, think along, and correct where necessary.
This principle doesn't stand alone. It works together with other quality requirements such as the staff-child ratio (BKR), which determines how many children may be in a group per childcare worker. Together they form a safety net around your child.
May a location ever deviate from the four-eyes principle?
Yes, but only under strict conditions. The Wet IKK has a three-hour rule: with at least 10 consecutive hours of daycare, a location may deviate from the four-eyes principle for a maximum of 3 hours per day. At least half of the required number of qualified staff must still be present. This deviation must be recorded in the location's pedagogical policy plan.
Think of practical situations: one colleague takes a small group of toddlers to the toilet while the other stays with the rest. Or there's a brief overlap during shift changes. But beware: this is not a free pass to structurally operate with fewer staff. The Municipal Health Service (GGD) monitors this closely during annual inspections.
Practical examples: what about...
A childcare worker alone with a child in the toilet?
This is a common question. A baby or toddler who needs changing sometimes requires one-on-one attention. In practice, this happens regularly, but the worker must remain within sight or hearing distance of a colleague. An open door, an intercom, or a nearby colleague who can listen in: these are common solutions. Feel free to ask during a tour how this works exactly at that location.
A substitute or new staff member?
Substitutes are unavoidable with illness or vacation. However, the four-eyes principle requires that the second person is actually a fully qualified staff member, not an intern or volunteer without relevant qualifications. Ask about the induction policy: how long does a new colleague work alongside others before standing alone with a group? And how does the location ensure that substitutes know the group dynamics and individual children?
Merged groups?
During early opening, late closing, or peak times, groups are sometimes merged. Special calculation rules apply for the BKR based on the ages of the children present. However, the four-eyes principle remains in force: even with a merged group, two adults must be visible or audible to each other. This can be challenging in large, open spaces. During your tour, pay attention to the physical layout: are there blind spots where a child could disappear from view?
How does the four-eyes principle work together with the familiar-faces criterion?
These two rules reinforce each other, but serve different purposes. The familiar-faces criterion ensures continuity and trust: your baby has a maximum of 2 fixed staff members (or 3 with 4+ days of care), and from age 1, a maximum of 3 familiar faces (or 4 with 4+ days). This promotes secure attachment and recognizing signals.
The four-eyes principle, on the other hand, ensures immediate safety and supervision at the moment itself. A familiar caregiver can be fantastic with your child, but without a colleague nearby, a vulnerable situation arises. Together they cover two layers of protection: the long term (familiar relationships) and the short term (direct supervision and assistance).
Interestingly, tension can arise between the two rules. A small, cozy group with familiar faces is wonderful for your child, but if one of those familiar faces is sick, a second adult must still be available. How does the location handle this? That's an essential question for you as a parent.
What concrete questions do you ask during a tour?
A tour is your moment to not only look, but also to dig deeper. The answers will give you a much better picture than a glossy brochure.
- "What does staffing look like on a typical day?" Ask about both the permanent team and substitutes. How often does someone work with the group who doesn't know the children?
- "What happens when someone needs to go to the toilet with a child or feed a baby?" This immediately shows whether the four-eyes principle works in practice, not just on paper.
- "How do you handle group merging, and how do you ensure adequate supervision then?" Pay attention to whether they get specific about the physical presence of two staff members.
- "May I see the most recent GGD inspection report?" This is a legal right. The report explicitly states whether the four-eyes principle and BKR were found to be in order. You can also consult GGD reports yourself via the National Childcare Register.
- "How does the familiar-faces criterion work for my child?" Ask which staff members would be the fixed caregivers and how long they've been working with this group.
What does the GGD do and where do you find the reports?
The Municipal Health Service (GGD) inspects all childcare locations annually, often unannounced. They check compliance with the four-eyes principle, the BKR, the familiar-faces criterion, and the Certificate of Good Conduct (VOG) requirement for staff. In case of violations, the GGD may issue an improvement notice or an enforcement recommendation to the municipality.
These reports are public and are a goldmine for parents. You can see not only whether there have been violations, but also how the location responded to them. A single deviation can be human; a pattern of problems is a red flag. On Kiddie.nl, you can easily find locations with their GGD ratings, so you can combine this information with your own impression during the tour.
Conclusion: trust begins with verification
The four-eyes principle is not a bureaucratic obstacle, but an essential safety rule that protects your child at the moment when you're not there. Together with the familiar-faces criterion, it creates a double safety net: familiar faces for your child's development, and direct colleague supervision for daily safety.
As a parent, you have the right and the opportunity to verify this. Ask the questions that matter, read the GGD reports, and trust your own observation. A location that is transparent about staffing, induction policy, and how they handle peak times, deserves your trust. Are you doubtful about something? Then that in itself is a signal to look further.
On Kiddie.nl, you can easily compare childcare locations in your neighborhood, including inspection reports, pedagogical visions, and practical information about safety and quality. This way, you can choose with peace of mind the place where your child can grow and be safe.