The U.S. delegation to the July 4-6, 2012, meeting of the United Nations (UN) Subcommittee of Experts on the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) is considering presenting an information paper on how to classify nanomaterials under the GHS. According to Kathy Landkrohn, Occupational Safety and Health Administration (OSHA) Directorate of Standards and Guidance, the paper would be presented under a work group examining the types of physical and chemical properties listed on safety data sheets (SDS). Landkrohn stated that a lack of data has impeded the work group’s ability to create a separate hazard class for nanomaterials.