UNODC Early Warning System announced, on 17th May 2016, that the Commission on Narcotic Drugs – in its 59th Session from 16 to 22 March 2016 – decided that acetylfentanyl (Schedule I and IV) and MT-45 (Schedule I) will be added to the Single Convention on Narcotic Drugs of 1961, as amended by the 1972 Protocol.

For more information check the links below:

https://www.unodc.org/LSS/Announcement/Details/3ec66e50-249f-438e-8a79-470d5e269b8d

http://www.un.org/ga/search/view_doc.asp?symbol=E/2016/28

https://www.unodc.org/unodc/en/commissions/CND/Mandate_Functions/Mandate-and-Functions_Scheduling.html