Chapter XVIII of the United Nations Charter deals with amendments. The process is essentially modeled after the amendment process for the United States Constitution in that:A two-thirds supermajority is required for adoption; Ratification by a supermajority of the respective states is required; There are two methods of proposing amendments; The more common of those methods is for the "first branch" to submit an amendment to the states; Another method, not actually used in practice, is to call a convention to propose amendments. The amendment procedure itself contains a provision that does not allow states to be deprived of their suffrage without their consent..