; (2) negotiate all matters pertaining to the government-to-government relationship between Puerto Rico and the United States through the development of the Articles of Free Association, including foreign affairs, trade, finance, taxation, currency, economic assistance, security and defense, dispute resolution, immigration, economic benefits (including grants), and termination of the free association status; and (3) endeavor to complete the Articles of Free Association not later than 2 years after the commencement of the constitutional Convention. (e) Collaboration The Government of the territory of Puerto Rico and the agencies of the Government of the United States shall collaborate with the Bilateral Negotiating Commission to provide for the orderly transfer of the functions of government as required by the Articles of Free Association. 211. Articles of Free Association approval and effective date (a) Approval The Articles of Free Association shall come into effect upon mutual agreement between the Government of the United States and the Government of Puerto Rico after completion of approval by— (1) a separate ratification vote on the Articles by the eligible voters in the special election held under section 203