; further provided that all contributions made by those who have not yet achieved permanently insured status at the time of Puerto Rico’s independence shall then be transferred, with interest, to the government of Puerto Rico, in order to assist in the establishment of a separate system of social insurance. (C) Trade The United States shall eliminate trade barriers with Puerto Rico, provided that limitations on imports or exports agreed upon by both nations shall ensure mutual benefits and assist each nation in meeting its trade and economic development objectives. (D) Public Debt and Economic Transition As partial indemnity for more than 118 years of political and economic subordination, during which the total payment of interest earnings and dividends from Puerto Rico to United States corporations have far exceeded net transfers of Federal assistance to both the government and the residents of Puerto Rico, the United States shall enter into negotiations with Puerto Rico to restructure the outstanding debts and obligations of the government of the Commonwealth of Puerto Rico and its instrumentalities. Moreover, during a transition period, an independent Puerto Rico shall receive annual transfer block grants equal to the total amount of grants, programs, and services currently provided by the Federal Government in Puerto Rico, adjusted for inflation, for a period to be negotiated to take place immediately following the joint proclamation of Puerto Rico’s independence. (E) Currency If so requested by Puerto Rico, both nations shall make the necessary arrangements with respect to the use of United States currency by the Republic of Puerto Rico. (F) Defense The United States and the Republic of Puerto Rico shall enter into agreements leading to the complete demilitarization of the Republic of Puerto Rico, and the devolution and decontamination of any real estate previously held by any branch of the Armed Forces. (d) Free association (1) Authorization to negotiate compact To provide a process consonant with the laws