The CN-LAB (National Centre for the National Laboratory Network) is ISPRA's hub for coordinating the network of environmental laboratories of the Italian National System for Environmental Protection (SNPA), set up under Law 132/2016. It harmonises analytical methods and environmental monitoring programmes across the ARPA/APPA regional agencies' laboratories, runs applied research and inter-laboratory comparison exercises to ensure data quality and comparability, and provides technical and scientific support to Italy's Ministry of Environment and Energy Security (MASE) and to the European Environment Agency. Its work is organised into five thematic areas: Metrology, Chemistry, Biology, Ecotoxicology, and Physics. chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.isprambiente.gov.it/files/eventi/2013/Presentazionelaborato…