Officials familiar with the document outline a highly technical series of requirements for both Syrian President Bashar Assad's government and opposition forces. —As of Monday, Assad's government and opposition forces should have ceased all attacks with any weapons, including aerial bombardments, rockets, mortars and anti-tank guided missiles. If the Kurds retreat 500 yards, the opposition forces should do likewise. Other requirements concern heavy weapons, including infantry-fighting vehicles and tanks, and crew-served machine guns. —All Syrians should be able to leave Aleppo on Castello Road, including opposition forces with their weapons.

Source: ABC News September 13, 2016 21:00 UTC