opposed to that role going to the CIA) in arms control issues. The US is a signatory to a number of multilateral arms control agreements, such as the Nuclear Nonproliferation Treaty (NPT), the Chemical Weapons Convention (CWC), Biological Weapons Convention (BWC), Missile Technology Control Regime (MCTR), the International Code of Conduct against Ballistic Missile Proliferation (ICOC), and the United Nations Convention on Certain Conventional Weapons (CCW). The WINACC provides CIA expertise in support of compliance with these missions, as well as with a number of bilateral treaties with the Russia or the former Soviet Union. These began with the Strategic Arms Limitation Talks (SALT), go through the various Strategic Arms Reduction Treaties (START I and START II), the Treaty on Conventional Armed Forces in Europe (CFE and follow-ons) and the Intermediate-Range Nuclear Forces Treaty (INF). These means include SIGINT (especially TELINT and FISINT), IMINT, and MASINT, where CIA scientific groups have had, or continue to have, responsibilities. Certain of these assignments were classified when first made, and the current responsibilities come from both public statements and declassified documents on earlier assignments. Other interagency roles The United States Department of State's Office of Counterproliferation Initiatives (ISN/CPI) is responsible for the treaty-level implementation of arms control, but specifically works with military and CIA agencies. It with the (DNI) National Counterproliferation Center, the CIA's Suppliers and Interdiction Group, and other intelligence organizations as appropriate. Note that the precise nomenclature of the various groups will change over time, but there has been a continuing CIA analytic and technical collection role in these areas. The office receives support from, coordinates efforts of, and provides guidance to, other offices (including the missile, chemical and biological interdiction groups) for these meetings. It leads policy development to attack the trade in nuclear materials (nuclear smuggling), and coordinate closely with CTR as the lead ISN office for securing facilities and materials worldwide.> To this end, ISN/CPI will receive support from, coordinate efforts of, and provide guidance to, other offices as necessary (including the missile, chemical and biological interdiction groups) for these meetings. It will lead policy development to attack the trade in nuclear materials (nuclear smuggling), and coordinate closely with CTR as the lead ISN office for securing facilities and materials worldwide. It also will work closely with White House offices and other agencies, including the Departments of Defense, Treasury, Commerce, Homeland Security, and Justice, and with the Intelligence