According to the Treaty on the EAEU of May 29, 2014, "accreditation" means official recognition by an accreditation authority of the competence of a conformity assessment body (including a certification body or a testing laboratory (centre)) to carry out work in a particular field of conformity assessment.
The Member States shall mutually recognise accreditation of the conformity assessment bodies (including certification bodies and testing laboratories (centres)) in the national accreditation systems of the Member States in fulfilling of the provisions of Article 54 of the Treaty on the EAEU of May 29, 2014, by accreditation authorities.
The Member States harmonise their accreditation legislation through:
*adoption of rules in the field of accreditation on the basis of international standards and other documents adopted by international and regional accreditation organisations;
*application of interstate standards in the field of accreditation, developed on the basis of international standards;
*ensuring and organising inter-laboratory comparative testing (inter-laboratory comparisons);
*exchange of information in the field of accreditation based on the principles of transparency, gratuitousness and timeliness.
In order to prevent competition between accreditation bodies of the Union Member States, a conformity assessment body apply for accreditation to the accreditation body of the Member State on the territory of which it is registered as a legal entity.

The Single Register of Certification Bodies and Testing Laboratories (centres) is maintained within the Union. The Single Register consists of national parts formed and maintained by authorised bodies of the Union Member States.

State control (surveillance)
In accordance with the Treaty on the Eurasian Economic Union of May 29, 2014, state control (surveillance) over compliance with the requirements of the Union’s technical regulations is carried out in accordance with the procedure established by the legislation of the Member States.
Principles and approaches to harmonisation of the Member States’ legislation in the field of state control (surveillance) over compliance with the requirements of the Union’s technical regulations shall be determined under an international treaty within the Union.
The Eurasian Economic Commission monitors and analyses implementation of the Commission’s decisions by the Member States on realization of the technical regulations, and elaborates proposals to improve the effectiveness of the state control (surveillance) over compliance with the requirements of the Union’s technical regulations.