The Syrian opposition announced on Monday a “roadmap” for peace that will be presented to key players in the conflict over the next two weeks.
The initiative includes steps to be taken ahead of an election and guidelines for a plan to write the country's post-war constitution.
The roadmap was drawn up by representatives of the opposition invited to Rome by the Catholic Sant'Egidio community.
The roadmap presented by the High Negotiations Committee (HNC), the main opposition force, as well as several minor groups, details the shape a new government and parliament could take.
It calls for the make-up of the committee to "reflect the composition of the country" and says all "arrangements/rules/law aiming at dissolving/obstructing/impeding the political activities of the opposition" must be scrapped.
The commission, within a nine-month timeframe, should not only prepare the constitution but also draft party and electoral law.
A new transitional government should organize general and presidential elections through an election commission set up by the committee under the supervision of the UN, it said.
It also called for a "general amnesty" and the "abolition of all laws, legislations and procedures aimed at prosecuting and punishing the participants of the events in Syria" since 2011, as well as the safe and voluntary return of refugees.
The leaders of Turkey, Russia, France and Germany on Saturday called for a political solution to the devastating seven-year civil war and a lasting ceasefire in the last major opposition-held bastion of Idlib.
Their statement called for a committee to be established to draft Syria's post-war constitution before the end of the year, "paving the way for free and fair elections" in the war-torn country.
A rival UN plan for a committee to write the constitution ran aground last week, with UN special envoy Staffan de Mistura saying Damascus rejected the UN having a role in the selection process.
Over 360,000 people have been killed in the conflict since 2011.
