1.
General Agreement on Tariffs and Trade (GATT 1947)
Article I - General Most-Favoured-Nation Treatment
2.
Agreement on Textiles and Clothing
Article 6
3.
Agreement on Import Licensing Procedures
Article 3 - Non-Automatic Import Licensing
4.
Agreement on Subsidies and Countervailing Measures
Article 11 - Initiation and Subsequent Investigation