Functions of the Commissions
1. Adjudicate cases on the application of trade remedies against imports pursuant to Sections 711, 712 and 713
2. Study the impact of tariff policies and programs on national competitiveness and consumer welfare inline with the economic objectives of the government
3. Administer the Philippine tariff schedules and tariff nomenclatures
4. Issue advance rulings on tariff classification of imported goods and render rulings on disputes over tariff classification of goods pursuant to Section 1100
5. Provide the President and Congress with independent analysis, information and technical support on matters related to tariff and nontariff measures affecting Philippine industries and exports for policy guidance
6. Analyze the nature and composition, and the classification of goods according to tariff commodity classification and heading number for customs and other related purposes
7. Review the trade agreements for negotiation and trade agreements entered into by the Philippines and make recommendations, if necessary, on the consistency of the terms of the agreements with the national policy objectives
8. Conduct public consultations and public hearings pursuant to its functions
9. Deputize or delegate, to appropriate government agency its function of rendering rulings on disputes over tariff classification of goods, until the plantilla positions necessary for undertaking such function have been approved and filled-up