On 23rd November, the EU announced that reinforced rules on new psychoactive substances (NPS) started applying across the EU from that date. The new rules are intended to allow the EU to respond much faster to the challenges posed by NPS. The new rules introduce shorter deadlines from the moment a dangerous drug is identified to the moment it is banned. The European Monitoring Centre for Drugs and Drug Addiction (EMCDDA) will continue to play a leading role in early warning and monitoring of NPS, and will initiate a scientific investigation into any new substance causing concern at EU level. NPS can cause extremely serious health and social harms, including acute intoxications and deaths. In 2017, 51 NPS were reported for the first time — a rate of around 1 per week, prompting the EU to ban a number of them.