What are Central Works Councils and Group Works Councils?

If in the interest of employee participation, the entrepreneur with two or more Works Councils has to set up a Central Works Council (centrale ondernemingsraad) for all of his companies or a Group Works Council (groepsondernemingsraad) for several of his companies. In general, a Central Works Council and a Group Works Council have the same rights as a regular Works Council. However, they only have these rights with regard to matters of common interest of all or most of the companies they were established for.

Related Questions

The Works Council cannot bind the company, but it has to be involved in the decision-making process on many occasions. What rights does the law provides the Works Council with respect to this?
If a BV is obligated to establish a Works Council, depends on the number of employees that work within the company based on an employment agreement.
In the Netherlands, employees have a legal right to participate. In what way can employees participate through a Works Council?