Any state law prohibiting such agreements is called the rule of law. Under the Right to Work Laws, states have the power to determine whether it is possible to require workers to join a union in order to obtain or maintain employment. In the United States, national legislation on the right to work concerns trade unions and workers in a company. In concrete terms, the right to work means that workers have the right to work in unionized enterprises without actually joining the union or paying regular union dues. They can also terminate their union membership at any time without losing their job. .