entific roadmap for the project; monitoring and making recommendations for the coordination of R&D efforts for the accelerator; and identifying models for international collaboration in the construction of the ILC facility. In addition, physicists in Asia, Europe, and North America formed regional ILC steering groups.
In 2002, the Consultative Group on High-Energy Physics of the Organisation for Economic Cooperation and Development (OECD) Global Science Forum endorsed an international linear collider as the next major high-energy physics project, to be operated concurrently with the LHC.
In the fall of 2003, ILCSG set up an International Technology Recommendation Panel (ITRP) to select a technology for the ILC.
In January 2004, the OECD Committee for Scientific and Technology Policy issued a Ministerial Statement noting the worldwide consensus of the scientific community that an electron-positron linear collider should be the next major accelerator-based facility in particle physics.
In March 2004, a special task force of ILCSG reported on a framework for an international organization to develop the design of the ILC. The report recommended the formation of a Global Design Effort (GDE) that would turn the selected technology for the ILC into a conceptual design and then into a design ready for construction.
In August 2004, ITRP unanimously recommended that the ILC design incorporate the superconducting radio-frequency technology. This recommendation was immediately adopted by ILCSG and ICFA and has been accepted by the research communities of all three regions. Immediately following the selection of the technology for the ILC, the ILCSC initiated the process for the GDE.
In March 2005, ILCSG and ICFA selected a director for the GDE. The director is coordinating activity on the project worldwide, but at present there is no centralized organization. Instead, a worldwide network with regional leaders reporting to the GDE director is being established, along with a work plan for this effort in each region.
The budgets of the science agencies in the United States, Japan, and Europe have included, directly or indirectly, R&D activities in support of the proposed ILC for a number of years. For FY2006 the U.S. budget for ILC R&D is about $25 million, with roughly similar amounts being spent in the other regions. The scientific excitement and enthusiasm for the ILC are such that all of the countries have agreed to support continuing R&D for the ILC without a commitment at this time to proceeding with construction of the project.