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In a sharp reversal of its policy of denying the existence of a chemical weapons program, the Syrian government agreed to destroy its chemical weapons stocks and joined the treaty banning the possession and use of these weapons, the Chemical Weapons Convention (CWC), on September 12. President Obama had been seeking congressional authorization to use military force in response to a large-scale chemical weapons attack by Syria, but on September 10 asked congressional leaders to postpone a vote in order to give the Administration time to pursue a U.S.-Russian diplomatic initiative to achieve chemical weapons disarmament in Syria. As a first step, the Syrian government is required to declare all its stocks, munitions, precursor chemicals, and production and storage facilities to the Organization for the Prohibition of Chemical Weapons (OPCW). They would also check that any related production facilities were shuttered or converted. The United Nations and the OPCW have had experience successfully monitoring the destruction of chemical weapons in several countries. This contingency has raised two major policy concerns: the use of chemical weapons by the regime of President Bashar al Asad; and whether the regime could lose control over these weapons. The largest-scale use to date was on August 21, 2013. President Barack Obama and other world leaders had said that the use of chemical weapons against the civilian population would be met with consequences, which could include the use of military force. For example, President Obama suggested during an August 2012 press briefing that the United States might take military action against Syria if Damascus used or lost control of its chemical weapons, explaining that "a red line for us is we start seeing a whole bunch of chemical weapons moving around or being utilized. On August 31, 2013, President Obama stated that the United States should respond with "military action against Syrian regime targets" and added that he would ask Congress to grant authorization for the use of military force. The White House had previously announced on June 13, 2013, that the Syrian government had used chemical weapons "on a small scale against the opposition multiple times in the last year." The statement added that, in response to the Asad regime's use of chemical weapons, the President had authorized the expansion of military assistance to the opposition forces in Syria. Due to the urgency of preventing access to these weapons by unauthorized groups, including terrorists, the United States government has been preparing for scenarios to secure the weapons in the event of the Asad regime's loss of control. Syria is likely to have procured equipment and precursor chemicals from private companies in Western Europe. Stating that "Damascus is enhancing its chemical weapon capability," the cable explains that the United States was imposing export controls on eight dual-use chemicals that "can be used … in the manufacture of chemical weapons." Damascus possesses mustard blister agent, sarin nerve agent, and VX nerve agent, according to official U.S. assessments. According to an August 30, 2013, White House statement, the United States assesses that Syria "has used chemical weapons on a small scale against the opposition multiple times in the last year"—an assessment "based on multiple streams of information including reporting of Syrian officials planning and executing chemical weapons attacks and laboratory analysis of physiological samples obtained from a number of individuals, which revealed exposure to sarin." August 21, 2013, Attack

Public intelligence assessments issued by the United Kingdom and the United States on August 29 and August 30, 2013, respectively, stated that the Syrian government used chemical weapons on August 21 against opposition forces outside of Damascus. A U.S. team investigating chemical weapons use in Syria was in the country at the time. The U.N. team should make their report and deliver it to the U.N. Security Council for their assessment. That would change my calculus. On September 14, 2013, Secretary of State John Kerry and Russian Foreign Minister Sergey Lavrov presented a proposed Framework for Elimination of Syrian Chemical Weapons. Key implementation issues will include verification, access, security of stocks and of international personnel, and timelines for action. Funding for Syrian chemical weapons destruction may also be proposed in a continuing resolution or supplemental. Cooperative Threat Reduction Programs

As referenced above (" Resources "), U.S. government programs could be used to address or fund efforts to secure or dismantle Syrian weapons of mass destruction or advanced conventional weapons following a regime collapse scenario. Some experts and policy makers have suggested that the United States and other countries make joining the Chemical Weapons Convention (and therefore chemical weapons dismantlement) a condition for recognition and support of a new government in Syria. 1960 ) as reported by the House includes Section 1205, which gives authority to the "Secretary of Defense, with the concurrence of the Secretary of State, to provide assistance to the military and civilian response organizations of Jordan, Kuwait, Bahrain, the United Arab Emirates, Iraq, Turkey, and other countries in the region of Syria in order for such countries to respond effectively to incidents involving weapons of mass destruction in Syria and the region." The use, change of hands, or loss of control of chemical weapons stocks in Syria could have unpredictable consequences for the Syrian population as well as for U.S. allies and forces in the region. Congress may also wish to assess the Administration's plan for chemical weapons verification and destruction in Syria.
Syria has produced, stored, and weaponized chemical agents, but it remains dependent on foreign suppliers for chemical precursors. The regime of President Bashar al Asad possesses stocks of nerve (sarin, VX) and blister (mustard gas) agents, possibly weaponized into bombs, shells, and missiles. The government also has associated production facilities. Chemical weapons and their agents can deteriorate depending on age and quality; little is known from open sources about the current condition of the stockpile. Syria continues to attempt to procure new supplies of chemical weapons precursors, which are dual-use, through front companies in third countries. Most countries that have had chemical weapons arsenals in the past have destroyed, or are in the process of destroying, these weapons under the Chemical Weapons Convention. The U.S. intelligence community cites Iran, North Korea, and Syria as having active chemical weapons programs. The Syrian government acceded to the Chemical Weapons Convention on September 14, 2013. This convention requires its member states to eliminate all of their chemical weapon stocks, munitions, precursor chemicals, and related production and storage facilities.
A major policy concern of the United States has been the use or loss of control of chemical weapons stocks in Syria, which could have unpredictable consequences for the Syrian population and neighboring countries, as well as U.S. allies and forces in the region. The United States and other countries have assessed that the Syrian government has used chemical weapons against opposition forces in the country. The largest-scale use to date was on August 21, 2013. A U.N. inspection team began working in Syria on August 19, 2013, and completed their mission on August 31. The U.N. team's investigative report confirmed the large-scale use of sarin nerve agent against civilians in the Ghouta area of Damascus on August 21.
President Barack Obama and other world leaders had said that the use of chemical weapons against the civilian population would be met with consequences, which could include the use of military force. For example, President Obama suggested during an August 2012 press briefing that the United States might take military action against Syria if Damascus used or lost control of its chemical weapons, explaining that "a red line for us is we start seeing a whole bunch of chemical weapons moving around or being utilized. That would change my calculus."
On August 31, 2013, President Obama stated that the United States should respond with "military action against Syrian regime targets" in response to the August 21 attack and added that he would ask Congress to grant authorization for the use of military force. The White House had previously announced on June 13, 2013, that the Syrian government had used chemical weapons "on a small scale against the opposition multiple times in the last year." The statement added that, in response to the Asad regime's use of chemical weapons, the President had authorized the expansion of military assistance to the opposition forces in Syria.
However, President Obama subsequently explained in a September 10 speech that he had asked congressional leaders to postpone a vote to authorize the use of military force in order to give the Administration time to pursue a new diplomatic initiative. Syrian Foreign Minister Walid Moallem stated the previous day that Damascus had accepted a proposal presented by the Russian government, according to which Syria would turn over its chemical weapons for international control and supervised destruction. The United Nations Security Council is discussing a draft resolution designed to accomplish this goal. Secretary of State John Kerry and Russian Foreign Minister Sergey Lavrov presented a proposed Framework for Elimination of Syrian Chemical Weapons, which outlines deadlines and actions required. Key issues for implementation of chemical weapons destruction in Syria include verification, inspectors' access, destruction method and location, and the security of international personnel.
While the United States and other governments have said they believe the Asad regime has kept its chemical weapons stocks secure, policy makers are also concerned about what could happen to these weapons in the course of the civil war, such as diversion to terrorist groups or loss of control during a regime collapse. There is also concern that Syria could transfer its chemical weapons to Hezbollah in Lebanon. Administration officials have stated that the United States has been working with regional allies to detect the movement of chemical weapons, prepare interdiction scenarios, and mitigate possible use against military or civilian populations.
During conflict, the intelligence community and Special Forces units would likely play a major role in locating and securing such weapons in a combat environment. The nature and recent course of the conflict in Syria suggests that rapid changes in control over critical military facilities may occur. U.S. government programs established to secure or remove chemical or other weapons of mass destruction through threat reduction or nonproliferation programs have focused on destruction or scientist redirection in an atmosphere of cooperation. At present, such programs are providing border security assistance to neighboring states. These programs may also be used to contribute financial or in-kind technical assistance to the Organization for the Prohibition of Chemical Weapons (OPCW) mission to eliminate chemical weapons in Syria. U.S. policy makers and Congress may wish to review and discuss authorities, funding, forces, and scenarios.
For additional information on chemical weapons agents, see CRS Report R42862, Chemical Weapons: A Summary Report of Characteristics and Effects, by [author name scrubbed]. For a broader discussion of U.S. policy options, see CRS Report RL33487, Armed Conflict in Syria: Background and U.S. Response, by [author name scrubbed] and [author name scrubbed].