The Organization for Economic Co-operation and Development (OECD) has revised a guidance document on safety testing of manufactured nanomaterials. The revised document was prepared by the organization’s Working Party on Manufactured Nanomaterials and revises an initial version of a document released in 2009.

OECD’s manufactured nanomaterials safety program “aims to generate safety information through testing for human health and environmental effects based on OECD test guidelines and other internationally agreed methods.” Program testing focuses on nanomaterial information/ identification, physical-chemical properties and material characterization, environmental fate, environmental toxicology, mammalian toxicology, and material safety, according to OECD. The guidance will be regularly updated and amended based on comments received from delegations. OECD is an intergovernmental organization in which representatives of 31 industrialized countries in North America, Europe, Asia, and the Pacific region meet to coordinate and harmonize policies and respond to international problems.