Health experts at the United Nations are recommending that marijuana and its key components be formally rescheduled under international drug treaties. The World Health Organization (WHO) is calling for whole-plant marijuana, as well as cannabis resin, to be removed from Schedule IV—the most restrictive category of a 1961 drug convention signed by countries from around the world. The body also wants delta-9-tetrahydrocannabinol (THC) and its isomers to be completely removed from a separate 1971 drug treaty and instead added to Schedule I of the 1961 convention, according to a WHO document. (See also: Though a ‘positive step,’ WHO recommendations on cannabis fall short for some)