今年1月，俄罗斯联邦与联合国通过紧密磋商，发表了《索契宣言》。《宣言》呼吁在日内瓦由特使领导创设一个宪法委员会，以此帮助重振联合国执行第2254（2015）号决议的努力，由于阿萨德政权没有真诚参与，执行工作停滞不前。《索契宣言》清楚指出，宪法委员会的150名代表将在叙利亚政权、叙利亚反对派以及独立人士当中平等分配，委员会的工作范围、时间安排和表决程序将由特使决定。绝对不能让叙利亚政权对委员会的成员组成或程序拥有否决权。当时，俄罗斯同意联合国将拥有管理委员会的权力，以便得到安理会的合法性肯定和关注，以此作为俄罗斯为叙利亚和平作出的可信贡献。
In January, the Russian Federation, in close consultation with the United Nations, published the Sochi declaration. The declaration called for the creation of a constitutional committee in Geneva, led by the Special Envoy, as a contribution to reinvigorating United Nations efforts to implement resolution 2254 (2015), which had stalled from a lack of genuine participation by the Al-Assad regime. The Sochi declaration made it clear that the constitutional committee’s 150-person membership would have equal representation among the regime, the Syrian opposition and independents, and that its scope of work, schedule and voting procedures would be determined by the Special Envoy. In no way was the Syrian regime to be given a veto over the membership or procedures of the committee. Russia agreed that the United Nations would have the authority to manage the committee in order to receive the imprimatur of legitimacy from and attention of the Council as a credible Russian contribution to peace in Syria.