ASTM Committee E56 on Nanotechnology was formed in 2005. E56 meets twice each year, in May and November, with about 25 members attending three days of technical meetings (every 3rd to 4th meeting of E56 is held outside of the United States). This Committee addresses issues related to standards and guidance materials for nanotechnology & nanomaterials, as well as the coordination of existing ASTM standardization related to nanotechnology needs. This coordination includes the apportioning of specific requests for nanotechnology standards through ASTM's existing committee base, as well as the maintenance of appropriate global liaison relationships with activities (internal and external) related to this subject area. The Committee, with a membership of approximately 180, currently has its standards published in the Annual Book of ASTM Standards, Volume 14.02. E56 has 6 technical subcommittees that maintain jurisdiction over these standards. Information on this subcommittee structure and E56's portfolio of approved standards and Work Items under construction are available from the List of Subcommittees, Standards and Work Items below.