Thanks to its metrological know-how, it has proven to have all the technological and organisational features required to create and validate the Calibration Centre ACCREDIA LAT No. 044. This convention states the mutual commitments required to ensure that internal specimens refer to national and international specimens over time and authorises the Centre to issue ACL certificates (Accredited Calibration Laboratory) having the same technical validity as those issued by Primary metrological institutes (considering declared level of uncertainty) and accepted by any country belonging to the multilateral agreement (MLA). The independence and impartiality of the Centre are guaranteed by the convention’s terms: all calibrations are performed according to the Quality Assurance Manual complying with UNI IEC EN ISO/IEC 17025.