1. Each member treats the nationals of the other members no less favourable than that accorded to its own nationals in the area of intellectual property protection (3), subject to the exceptions already provided for by the Paris Convention (1967), the Bern Convention (1971), the Rome Convention or the Treaty on Intellectual Property with regard to integrated circuits. For performers, phonogram producers and broadcasters, this obligation applies only to the rights of this agreement. Any member who uses the possibilities of Article 6 of the Berne Convention (1971) or Article 16, paragraph 1, point b) of the Rome Convention notifies the Council for TRIPS. National treatment is an integral part of many World Trade Organization agreements. With the principle of the most favoured nation, the issue is one of the cornerstones of WTO trade law. It is included in the three main WTO agreements (GATT, AGCS and ADPIC).  National treatment is only applicable when a product, service or intellectual property has been put on the market. Therefore, the imposition of tariffs on an import does not constitute a violation of the exemption, even if locally manufactured products do not receive an equivalent tax.  Challenge is a fundamental GATT/WTO principle that prohibits discrimination between imported and domestic products in matters of internal taxation or other state rules. The principle of questioning is formulated in Article 3 of GATT 1947 (and by reference to the 1994 GATT); Article 17 of the General Agreement on Trade in Services (GATS); and Article 3 of the Trade-Related Intellectual Property Rights (TRIPS) Agreement. The purpose of this trade rule is to prevent internal taxes or other rules from being used to replace customs protection.
 National treatment is one of the fundamental principles of international conventions for the protection of intellectual property. It is defined in the most important conventions, such as the Paris Convention.B the Berne Convention, the Rome Convention, the General Copyright Convention, the trips, NAFTA and the WPPT, including the WCT, which is part of the WCT in accordance with Article 3, Article 2 – 6. There are few conventions that do not apply the principle of national treatment, such as the Geneva Convention on phonograms and the Brussels Convention by satellite, and these do not confer private rights on beneficiaries who need to be protected, but leave it to the States Parties to choose the means of legal protection. 3. Members grant the treatment of other members to nationals of other members under this agreement. 1. With regard to relevant intellectual property law, nationals of other members are considered to be natural or legal persons who would meet the protection criteria provided by the Paris Convention (1967), the Bern Convention (1971), the Rome Convention and the Intellectual Property Treaty, taking into account the integrated channels, all WTO members. 2. Any member who makes use of the possibilities provided for in Article 5, paragraph 3, or Article 6, paragraph 2, of the Rome Convention, notifies the Council on Intellectual Property Rights relating to trade (The TRIPS Council). While this is generally considered a desirable principle, it does mean that a state can deprive foreigners of all that it deprives of its own citizens. An opposite principle requires a minimum international standard for justice (a kind of formal procedure) that would serve as the basis for the protection of rights and access to judicial proceedings.