The rules on market access and national treatment are not general requirements, but specific obligations contained in the calendars attached to the GATS and are an integral part of the agreement. These schedules define the services and services for which market access is provided and define the conditions for that access. After consolidation, these obligations can only be amended or withdrawn after negotiating compensation with the country concerned. The agreement is based on the principle of the treatment of the Most Favoured Nation (MFN), according to which each Member State does not treat the enterprises of another Member State less favourably than its own or those of other countries. However, there are exceptions for certain service activities in a list of exceptions to the MFN requirement. In fact, any government could impose restrictions on foreign companies` access to their markets. These schedules include commitments made by the various WTO members, which allow certain foreign products or suppliers to access their markets. Calendars are an integral part of the agreements. In the printed version, these calendars cover approximately 30,000 pages for all WTO members.
Some activist groups believe that GATS risks undermining the ability and authority of governments to regulate commercial activities within their own borders, which will lead to the flight of power from the commercial interests of citizens. In 2003, the GATSwatch network published a critical opinion, supported by more than 500 organizations in 60 countries.  At the same time, countries are not required to enter into international agreements such as the GATS. For countries that like to attract trade and investment, GATS adds a degree of transparency and legal predictability. Legal barriers to trade in services may have legitimate political reasons, but they can also be an effective instrument for large-scale corruption.  Special and differentiated provisions in legislation: in order to ensure maximum transparency, the agreement obliges governments to publish all relevant laws and regulations. These measures must be implemented appropriately, objectively and impartially. The decision approves the agreement by which the WTO was created on behalf of the European Community (now the European Union -EU), including the General Agreement on Trade in Services The GATS agreement has been criticised for having tended to replace the authority of national legislation and justice with that of an GATS dispute resolution body that holds hearings. Spokespeople for WTO government members have an obligation to reject this criticism because they had previously pledged to recognize the benefits of the dominant trade principles of competition and “liberalization. The Final Act, signed in Marrakech in 1994, is like a cover. Everything else depends on that. First, the WTO agreement (or the WTO agreement), which serves as a framework agreement.
The annex contains agreements on goods, services and intellectual property, dispute resolution, the trade policy review mechanism and multilateral agreements. Commitments are also part of the Uruguay Round agreements. The GATS agreement includes four types of service delivery in cross-border trade: Bilateral agreements between governments on recognition of qualifications must be open to other members who wish to join. In addition, each member must ensure that monopolies and exclusive service providers do not abuse their position. Similarly, members should discuss ways to eliminate business practices that may limit competition. Most WTO agreements are the result of the 1986-1994 Uruguay Round negotiations, which were signed at the ministerial meeting in Marrakech in April 1994. There are about 60 agreements and decisions with a total length of 550 pages.