1.
General Agreement on Tariffs and Trade (GATT 1947)
Article XX - General Exceptions
2.
Agreement on the Application of Sanitary and Phytosanitary Measures
Article 2 - Basic Rights and Obligations
3.
Annex 1B: General Agreement on Trade in Services
Article XIV - General Exceptions
ANNEX ON TELECOMMUNICATIONS
4.
Annex 1C: Agreement on Trade-related Aspects of Intellectual Property Rights
Article 4 - Most-Favoured-Nation Treatment