কার্যবিধিমালা, ১৯৯৬ অনুসারে বাণিজ্য মন্ত্রণালয়ের জন্য কার্যবণ্টনের অধীনে নিম্নোক্ত দায়িত্বসমূহ অর্পণ করা হয়েছে –

• Promotion and regulation of internal commerce.
• Commercial intelligence and statistics and publications thereof.
• Companies Act, Partnership Act, 1932, Societies Registration Act, 1860 and the Trade Organisations Ordinance,1961.
• Control and Organisation of Chamber of Commerce.
• Price Advising Boards.
• Accountancy including Chartered Accountancy.
• Cost and management Accountancy.
• Matter relating to vested and abandoned commercial properties.
• Commercial Monopolies.
• Price Control.
• Export policies including protocols, treaties agreements and conventions bearing on trade with foreign countries.
• Review export policies and programmes.
• Regulation and control of import trade and policies thereof.
• Trade delegation to and from abroad, overseas trade, exhibitions and trade representation in consultation with the Ministry of Foreign Affairs.
• Purchase and supply of internal and external stores.
• Transit trade through Bangladesh.
• State Trading.
• International Commodity Agreements .
• Export promotion including administration of export credit guarantee scheme.
• Tariff commission, tariff policy, tariff valuation, commonwealth tariff Preference, general and international agreements on tariff.
• International trade organization including UNCTAD and GATT.
• European Economic Community.
• Quality control, standardization and marking of the agricultural products/animals products for the purpose of export.
• Administration of Commercial Wings in Bangladesh missions abroad and appointment of officers and staff thereof.
• Administration of B.C.S (Trade).
• Secretariat administration including financial matters .
• Administration and control of subordinate offices and organizations under this Ministry.
• Liaison with International Organizations and matters relating to treaties and agreements with other countries and world bodies relating to subjects allotted to this Ministry.
• All laws on subjects allotted to this Ministry.
• Inquiries and statistics on any of the subjects allotted to this Ministry.
• Fees in respect of any of the subjects allotted to this Ministry except fees taken in courts.