According to the Belgian Official Journal, as of January 1, 2016, manufactured nanoparticle substances, with certain exceptions, must be registered in Belgium through a Web platform. These substances are further defined and include fullerenes, graphene flakes and single-wall carbon nanotubes with one or several external dimensions less than 1 nm. Mixtures containing these substances must be registered by January 1, 2017, and products containing manufactured nanoparticle substances will be registered at a later date. Excluded from the registration mandate are biocidal products, medicines, food and feed, food contact materials, and pigments. Data on the exact use, function or applications, and the registrant will remain confidential. See News Release, October 9, 2014.