SI No 154 of 2020 European Communities (Units of Measurement) (Amendment) Regulations 2020

These Regulations are made to give effect to Council Directive No. 2019/1258/EU of the European Parliament and of the Council of 23 July 2019 on the approximation of the laws of Member States relating to units of measurement.

The main changes in the Regulations provide for new definitions of the SI base units. The new definitions are based on the new principle of fixed numerical values of the defining constants and are expected to improve the long-term stability and reliability of the SI base units as well as the accuracy and clarity of measurements.


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