In June 2018, the U.S. Supreme Court ruled in Janus` favor in a 5-4 decision and ruled that „states and public sector unions can no longer deduct agency fees from non-consensual workers.“  There are different types of union security agreements. Among the most frequent, EU security agreements are explicitly mentioned in the labour laws of many countries. They are heavily regulated by laws and court decisions in the United States and, to a lesser extent, in the United Kingdom.  In Canada, the legal status of the union security agreement varies from province to province and at the federal level, with some provinces allowing it but not claiming it, but the majority of provinces (and the federal government) required it when the union required it.  The problem of parasitism is often cited as a justification for union security agreements. A classic study on the problem of parasitism is presented in Mancur Olson`s 1965 work, The Logic of Collective Action.  In labour relations, there is the problem of parasites, because the cost of organizing a union and negotiating a contract with the employer can be very high, and because employers will find it too expensive to take on multiple pay and benefit scales. , some or all non-union members may find that the contract is also favourable to them.  Therefore, the incentive is for individual workers to „drive for free“ by not paying the fees, which can lead to the collapse of the union and the absence of a collective agreement.  If the union collapses, any worker could be worse than if the union had negotiated the contract.  Eu security agreements are a means of ensuring that all (or almost) workers bear their fair share of the cost of collective bargaining (for example).
B union membership and dues).   Janus v. American Federation of State, County, and Municipal Employees, Council 31, US (2018) is a case of U.S. labour law in which it comes to whether governments violate the First Amendment when they ask their employees to pay a union fee as a condition of employment. In March 2015, three Illinois government employees, represented by lawyers from the Liberty Justice Center in Illinois and the Virginia-based National Right to Work Legal Defense Foundation, filed a lawsuit to intervene.    In May 2015, Rauner was excluded from the proceedings after a federal judge ruled that the governor was not entitled to bring such an action, but the case was prosecuted under a new name, Janus v. AFSCME.  The case is named after Mark Janus, a child care specialist in Illinois, who is the subject of a collective agreement. Outside of North America and Western Europe, the legal status of trade union security agreements is even more different. In New Zealand, the closed store was mandatory from 1988, when a union organized the workplace.
 In the Philippines, different types of trade union security agreements are authorized by labour law.  In Mexico, the closed store was mandatory until the early 1990s, when a change in federal law allowed union stores, agency stores or no agreements.   But because of the political ties between unions and the ruling party in Mexico and other ways in which Mexican law favours established unions, the closed store remains essentially the norm.  In February 2015, the Republican governor of Illinois, Bruce Rauner, filed a complaint claiming that fair sharing agreements were unconstitutional and a violation of First Amendment freedom of expression. However, many countries have not addressed the issue of trade union security agreements. Neither Indonesian nor Thai labour law address this issue, and collective bargaining, union administrative procedures and tolls in both countries are so low that trade union security issues are scarce.  In Australia, the legal status of union security agreements varies considerably from state to state and from the government to