NRCS supports Government in ensuring the orderly conduct of commerce, the protection of all participants in the market of goods and services and protection of consumers by ensuring equity and correctness in all trade and all other legal metrology dealings used as a basis for the transaction.

Government should also show due diligence to citizens of foreign countries and their governments that South African trade measurements meet or exceed international norms. There is close co-operation between Legal Metrology and government departments.

Organisation Internationale Metrology Legal (OIML) is the international body representing Legal Metrology. NRCS - Legal Metrology is the nominated representative of South Africa to OIML and represent South Africa on the OIML technical committees where the International Recommendations (R-Documents) are developed.

Legal Metrology is also involved/represented in regional metrology organisations i.e. AFRIMETS – Inter Africa Metrology System, SADCMEL – Southern Africa Legal Metrology.