Metrology is the science of measurement and its application.

Law on Metrology was published in the "Official Gazette of RS", No. 15/16, dated 25. February 2016 and entered into force on 4. March 2016.

This Law regulates organization of metrology activities, legal units of measurement and measurement standards of the Republic of Serbia, placing on the market and use of measuring instruments, assessment of conformity of measuring instruments with prescribed requirements, pre-packaged products, the validity of documents and foreign conformity marks, supervision, and other metrology-related matters.
Law taking into account the documents of the International Organization of Legal Metrology (International Organization of Legal Metrology – ОIМL D1 and ОIМL D9) and Тhe acquis of the Еuropean Union under the management of DG Enterprise and Industry, chapter 5. Legal metrology and pre-packaging).
Also, the law assumes the terms and definitions of the International vocabulary of terms in legal metrology, as well as the terms and definitions of the International vocabulary Metrology - of Basic and general concepts and associated terms.

System of metrology in Republic in Serbia has been established in accordance with the international and European trends and it is consisted of the following subjects:

- Ministry of Economy;
- Directorate for measures and precious metals;
- Council of metrology;
- Designated holders of national measurement standards;
- Designated conformity assessment bodies;
- Accredited laboratories for verification of measurement instruments;
- Accredited laboratories for calibrations.

Ministry of Economy performs tasks relating to strategy development of metrology.
Directorate for measures and precious metals performs expert’s tasks and related implemented tasks in the scope of metrology. It is the National Metrology Institute.
Council of metrology represents an expert advisory body established by the Government of RS to provide expert opinions and to participate in the realization of the project tasks in the field of metrology.