Coordinating Committee for Multilateral Export Controls

CoCom originated from the tense geopolitical atmosphere following World War II, as Western nations grew increasingly wary of advanced technology potentially reaching the Soviet Bloc. This concern spurred efforts to collaborate on limiting technology transfers to communist states. As Japan grew to one of the U.S.'s primary adversaries in the World War II, many policymakers thus felt these policies were necessary to prevent the growth of powers challenging U.S. dominance. Thus, in response to the Soviet Union’s first nuclear test in 1949, the United States, United Kingdom, and France pursued confidential discussions to lay the groundwork for coordinated communist bloc export embargoes. Thus, there were many within the Western bloc that felt that CoCom restrictions should be relaxed, in order to encourage reforms and promote peace. Key: Red = Legislation that primarily places restrictions on U.S. exports; Green = Legislation that primarily relaxes restrictions on U.S. exports. This timeline, created by Zach Weinberg, highlights the most substantial changes and revisions to U.S. export controls from 1949 to 2020, however, it is not an exhaustive list of all U.S. export control laws. == Membership ==

In its final years, CoCom had 17 member states: • • • • • • • • • • • • • • • • • Despite being neutral, Switzerland joined the CoCom sanctions against the Eastern bloc countries; see . Laws and regulations In the United States, CoCom compliance was implemented via multiple statutes authorizing presidential export controls, including the Export Control Act of 1949, the Export Administration Act of 1969, the Export Administration Act of 1979, the Arms Export Control Act (AECA), the Trading with the Enemy Act, and the International Emergency Economic Powers Act, among others. Many of these statutes encouraged the coordination of controls with allies. However, U.S. policies frequently exceeded CoCom’s collective controls, reinforcing American leadership but also creating friction with allies. The Department of State and the Department of Commerce administered these coordinated controls via the Export Administration Regulations (EAR) and the International Traffic in Arms Regulations (ITAR). == Effectiveness and impact ==

CoCom’s export control lists were elaborate, specific, and systematically organized. CoCom had three categories of export controls: the Nuclear List—spanning uranium enrichment systems and nuclear reactor components; the International Munitions List—including guided missiles, advanced avionics, and other strategic military systems; and the Industrial List—containing dual-use items such as supercomputers and semiconductors. These lists were updated regularly—in 1954, 1958, 1961, 1964, 1967, 1971, and 1974-1975—to reflect evolving geopolitical dynamics between CoCom constituents and the USSR. President George H.W. Bush’s successful proposal to eliminate a significant number of industrial and dual-use CoCom export controls following the fall of the Berlin Wall and diminishing Soviet influence in Eastern Europe reflects CoCom’s adaptability. The longevity of CoCom—lasting 30 years despite military risks that threatened its abolition—is also notable. Much of the opposition against CoCom revolved around whether market competition was a sufficient deterrent against exporting high-tech items to adversaries. Many European officials believed that potential competition and the risk of losing a comparative advantage would be a sufficient safeguard against Western technology transfers to the Soviets. Ultimately, Cold War's end weakened the rationale for CoCom, leading to its disbandment. == Soviet Union's reception and resistance ==

For the most part, the Soviet Union viewed CoCom not merely as a Western mechanism to restrict trade but also as a strategic tool employed by the West to impede the USSR's technological and economic development. From the Soviet standpoint, CoCom was an extension of Cold War hostilities. While never formally acknowledged in public by the Soviet leadership, CoCom was frequently denounced in internal party discussion and through state-aligned media as an economic warfare mechanism designed to stunt socialist development and prove capitalist technological superiority. Throughout the Cold War, the Soviet Union systematically tried to undermine export controls enforced by CoCom. The Soviet Union circumvented them primarily through Soviet intelligence agencies, particularly the KGB and GRU. By the early 1980s, the KGB and GRU had deployed thousands of agents, called "technology collection officers", across Western Europe and the United States, to gain access to restricted technology through establishing "dummy" corporations—fake businesses that were intermediaries for purchasing technology—and conducting "territorial diversions", which the U.S. intelligence community referred to as the process of acquiring sensitive U.S. technology and then rerouting it through neutral or CoCom-member countries such as Switzerland and Sweden where export controls were relatively more lenient. According to a 1982 CIA report, the USSR obtained approximately 70% of military-relevant Western technologies through the aforementioned intelligence channels; the rest were secured through legal trade, student exchanges, and open-source scientific literature. ==Violations==

Toshiba Machine Company of Japan and Kongsberg Group of Norway supplied eight CNC propeller milling machines to the Soviet Union between 1982 and 1984, an action that violated the CoCom regulations. The United States' position is that this greatly improved the ability of Soviet submarines to evade detection. The Japanese government and U.S. House of Representatives then moved to sanction Toshiba and ban imports of Toshiba products into the U.S. military stores. In a related case, French machine tool company Forest-Liné (later acquired by Fives Group) exported tens of millions of dollars' worth of sophisticated milling machinery to the Soviet Union, allowing the Soviets to fabricate aircraft fuselages and turbine blades for high-performance jet engines. This information came to light during an investigation by the Norwegian police into the Toshiba-Kongsberg scandal. Subsequently, four top Forest-Liné executives were arrested. == Legacy ==

Controversies and criticism CoCom’s legacy remains a subject of spirited debate and controversy. Proponents contend that it was indispensable for Western security, as it prevented advanced “critical” technologies from falling into Soviet hands and thereby bolstered the West’s strategic edge. Critics, however, argue that CoCom’s controls were only partly effective, citing numerous breaches–with one British parliamentary review labeling the incidents a “horror story” of illegal exports–which enabled Eastern Bloc nations to acquire Western equipment despite the embargo. In the 21st century, while some analysts advocate for a modern, CoCom-like coalition to restrict China’s access to sensitive technology, CoCom’s stringent export controls also drew criticism from outside the Western alliance for allegedly stifling broader technological progress. Eastern Bloc leaders contended that the sweeping restrictions – especially those on dual-use technologies under CoCom’s extensive Industrial List – impeded their economic and scientific development. Soviet officials even characterized CoCom as an instrument of Western dominance; in mid-1989, Mikhail Gorbachev complained that East–West relations had been “bled white by CoCom,” calling many of its remaining high-tech bans “utterly ridiculous” as Cold War tensions eased. Likewise, many developing countries in the Global South (notably members of the Non-Aligned Movement) denounced CoCom as a form of “technological imperialism” aimed at preserving the West’s industrial and strategic supremacy. Representatives from these nations argued that such export-control regimes functioned as a discriminatory barrier to equitable development, noting that “undue restrictions” on the transfer of materials and know-how for peaceful purposes hampered their growth. Successor export control regimes CoCom shaped the foundational principles for modern multilateral export-control regimes. Its practices informed successor frameworks such as the Wassenaar Arrangement, the Missile Technology Control Regime, and contemporary U.S. extraterritorial export controls. In fact, the Wassenaar Arrangement was directly drawn from the ashes of CoCom, as it was established to address the security environment post-Cold War, and tackle the controlling exports of conventional arms and dual-use goods and technologies. The post-CoCom era has also introduced new challenges from globalization and digital technology proliferation, complicating traditional embargoes and export controls. These issues are particularly relevant with enforceable US advanced technology export controls focusing on China, which is much more integrated into the global economy today than the Soviet Union ever was. Thus, contemporary U.S. export controls are more unilateral in nature, relying on comprehensive regulations that not only prohibit direct exports but also leverage globalization to control foreign-produced items incorporating U.S. technology. Geopolitically, these controls aim to impede China's progress in critical high-tech sectors, bolstering U.S. technological leadership and addressing concerns about Chinese military-civil fusion. The biggest difference between CoCom and current U.S. export controls lies in enforcement mechanisms. Instead of relying on collective enforcement and potentially uneven member nation export control applications, modern U.S. policies centralize export control authority under the Department of Commerce’ Bureau of Industry and Security (BIS). BIS actively monitors compliance and has the authority to unilaterally enforce regulations and penalize violators. BIS’ jurisdiction extends extraterritorially via the Foreign Direct Product Rule (FDPR), which allows the government to limit the sale of foreign-made goods that use U.S. technology. GPS "CoCom limits" In GPS technology, the term "CoCom Limits" also refers to a limit placed on GPS receivers that limits functionality when the device calculates that it is moving faster than and/or at an altitude higher than . This was intended to prevent the use of GPS in intercontinental ballistic missile-like applications. Some manufacturers apply this limit only when both speed and altitude limits are reached, while other manufacturers disable tracking when either limit is reached. In the latter case, this causes some devices to refuse to operate in very-high-altitude balloons. The Missile Technology Control Regime's Technical Annex, clause 11.A.3, includes a speed limit on GNSS receivers, set at 600 m/s. ==See also==