I propose to introduce a two-yearly certification of the representativeness of trade unions, especially in terms of the adequate number of members, which is a condition for the granting of representativeness to trade unions by the State. The number of members would, according to the proposal, have to be proved by receipts of paid membership fees in the month preceding the determination or certification of the representativeness of the trade union.Similar solutions are also known in other countries, such as Croatia, a paragraph of their law reads: Duration of the representativeness of the trade union for collective bargaining; Article 10.(1) Nakon što je reprezentativnost sindikata za kolektivno pregovaranje o sklapanju kolektivnog ugovora utvrđena na način i u postupku propisanom ovim Zakonom, isti zadržava utvrđenu reprezentativnost u razdoblju od tri godine od dana jejog utvrđivanja.This area needs to be regulated as proposed, because what is happening today is that, on the basis of the representativeness granted many years ago, individual trade unions still have the status of representativeness vis-à-vis the State or the employer, despite the fact that so many members left the trade union several years ago that the trade union no longer fulfils the condition for representativeness in terms of the number of members, but no one is finding this out today because there is no legal basis for this. In practice, therefore, workers in trades and professions are represented by trade unions with only a handful of members, thus hindering trade unions that represent the legally required number of members for the status of representation in a trade or profession.The first test of representativeness should be carried out as soon as possible and the time limit for the first test should be set by law and very shortly after the adoption of the Law on the Amendment of the Law on Trade Union Representativeness, which would be able to regulate or give effect to the proposed proposal. There is chaos in this area in Slovenia, which is mainly the responsibility of the trade unions and the government, as we still have the 1993 Law on the Representativeness of Trade Unions in force and unchanged since then. Such regulation does not interfere with the constitutional right of trade unions to operate freely, because it does not interfere with the functioning of trade unions, it merely lays down the conditions for the granting of representativeness, which gives a trade union the legitimacy and legality to negotiate on behalf of all workers employed in an occupation or activity.