Entering measuring instruments into the register: a complete guide for the EAEU countries and Uzbekistan

For many manufacturers and importers, the initial conformity certification (EAC or GOST Uz) seems to be the final stage that opens the way to the market. However, for a wide range of products — from household electricity meters to industrial gas analyzers — this path will be closed without completing a second, strictly regulated procedure: entry into the state register of measuring instruments (MI).

A certificate confirms safety, while entry into the register confirms metrological accuracy and the legality of using the instrument in areas subject to state regulation. In this article, we will take a detailed look at what type approval of measuring instruments is, which products require it, how to undergo the procedure in the EAEU and Uzbekistan, and how the approaches of the two systems differ.

1. What is a measuring instrument and why must it be entered into the register?

1.1. DefinitionA measuring instrument (MI) is a technical device intended for measurements, possessing standardized metrological characteristics, and reproducing and/or storing a unit of physical quantity. MIs include:

• Measuring devices: manometers, thermometers, voltmeters, gas and liquid analyzers.

• Measuring systems: automated electricity metering systems (AEMS), weight and dimension control systems.

• Measures: weights, reference solutions, standard composition samples.

• Measuring transducers and sensors: flow meters, strain-gauge sensors.

1.2. Purpose of entry into the register (“Type Approval of MI”)Type approval and entry into the register is not a voluntary option, but a mandatory state confirmation that the design of a specific instrument model ensures declared accuracy throughout its established service life. The main objectives of this procedure:

• Access to state-regulated spheres: defense, healthcare, commercial metering of energy resources (gas, water, electricity, heat), trade, occupational safety, environmental monitoring. Without entry into the register, using the instrument in these areas is illegal.

• Uniformity of measurements: ensuring comparability of measurement results nationwide (or union-wide), which is critically important for legal disputes and technical control.

• Consumer protection: guaranteeing that a meter charges exactly for the resource consumed, and a tonometer shows the true pressure.

2. Type approval system in the EAEU countries

Supranational mechanisms operate within the Eurasian Economic Union, but their application is strictly tied to the country of origin of the instrument. The fundamental documents are:

• EEC Council Decision No. 98 of October 18, 2016, “On the Procedure for Type Approval of Measuring Instruments”

• EEC Council Decision No. 145 of October 18, 2016, “On Approval of the Rules for Mutual Recognition of Results of Work to Ensure Uniformity of Measurements”

• Interstate rules PMG 06-2019 “Procedure for Recognition of Test Results and Type Approval, Initial Verification, and Metrological Certification of Measuring Instruments”

Key principle: mutual recognition (where a certificate of one country automatically applies in others) works exclusively for measuring instruments manufactured on the territory of the EAEU member states. For instruments manufactured in third countries (China, Europe, USA), this mechanism does not apply.

2.1. Two different pathways depending on origin

Origin of the MI	Procedure	Area of validity
Manufactured in the EAEU (Russia, Belarus, Kazakhstan, Armenia, Kyrgyzstan)	Type approval according to the unified Union Procedure (Decision No. 98) with the issuance of an EAEU Type Approval Certificate. The applicant is a manufacturer registered in any Union state.	The EAEU certificate is recognized in all five states without additional procedures.
Manufactured in a third country (China, etc.)	National procedure in each country where import is planned. Having a certificate from one EAEU country (e.g., Russian) does not grant the right of automatic recognition in another Union country (e.g., Kazakhstan). A separate Kazakhstani type approval is required to enter the Kazakhstani market.	Valid strictly within the state whose body issued the national certificate.

Important clarification: even if an instrument manufactured in a third country already has its type approved, for instance, in Russia, in order to import it into Kazakhstan it is necessary to undergo a full national type approval procedure in Kazakhstan. References to the Russian certificate or EAC conformity certificates do not exempt one from this requirement. Direct mutual recognition is not applicable in such a case, as confirmed by official clarifications of metrological bodies (e.g., RSE “KazStandard”).

2.2. Step-by-step type approval procedure for imported equipment (using the Russian Federation as an example)

The procedure described below grants the right to legally use the instrument only on the territory of Russia. To supply to other EAEU countries, their national procedures must be completed separately.

1. Submission of an application and document packageThe applicant (a legal entity registered in the Russian Federation or an authorized representative of the foreign manufacturer) submits an application to an accredited testing center, attaching:

   • technical specifications and operational documentation;

   • draft type description of the MI (photos, characteristics, verification information);

   • EAC certificate of conformity (if the product falls under TR CU);

   • a sample of the instrument for testing.

2. Tests for type approval purposesConducted by an accredited testing center (e.g., VNIIMS, VNIIM named after D.I. Mendeleev). They include:

   • verification of declared metrological and technical characteristics;

   • determination of the verification interval;

   • development or examination of the verification procedure.

3. Documentation of results and registrationUpon successful results, Rosstandart issues an order approving the type. Information is entered into the Federal Information Fund for Ensuring the Uniformity of Measurements (FIF OE).A Russian Type Approval Certificate is issued. Validity period – 5 years (serial production) or indefinite (single unit).

4. Further steps for other EAEU countriesIf supplies to Kazakhstan, Belarus, Armenia, or Kyrgyzstan are planned, it is necessary to initiate the type approval procedure with the authorized body of the respective country (e.g., KazStandard) and obtain a local type approval certificate. Using the instrument in these countries based solely on the Russian certificate is unlawful.

If the equipment was originally manufactured on the territory of the EAEU, the procedure is similar in steps but is conducted according to the unified Procedure (Decision No. 98) with the issuance of an EAEU certificate, which is recognized everywhere.

3. Type approval system in Uzbekistan

Uzbekistan is not a member of the EAEU, therefore EAEU certificates and national certificates of Union countries are not valid there, and the procedure has significant differences, although it is based on similar principles.

3.1. Governing body and legislationThe main operator in the field of metrology is the Uzbek Agency for Technical Regulation (Uzstandard) and its subordinate organizations, in particular the State Institution “Republican Center for Testing of Measuring Instruments”. The procedure is conducted on the basis of the Law “On Metrology” and Cabinet of Ministers Resolutions.

3.2. Specifics of the process in UzbekistanThe process is oriented toward working through an importer or a local representative, and it has peculiarities in terms of timelines and documentation requirements.

• Applicant:

  • for a batch of instruments – only the importer (resident of the Republic of Uzbekistan);

  • for serial production – the foreign manufacturer or its official representative.

• Submission of documents to Uzstandard:In addition to technical documentation, a contract, invoice, GOST Uz certificate or declaration, ISO 9001 certificate (for series), and an MI sample are required.

• Metrological tests:Conducted in accredited laboratories, taking into account the climatic conditions of Uzbekistan (elevated temperatures, dust).

• Approval and registration:Uzstandard issues an order, and information is entered into the State Register of Measuring Instruments of the Republic of Uzbekistan. A Type Approval Certificate is issued (in Russian and Uzbek). Validity – up to 5 years for a series, for the duration of the contract for a batch.

• Initial verification:A critical difference from many markets: each imported batch must undergo initial verification on the territory of Uzbekistan, even if the instrument was already verified by the manufacturer. Sale to the end user is prohibited without a verification report.

4. Comparative analysis: EAEU (import from third countries) vs Uzbekistan

Parameter	EAEU (for MIs manufactured in third countries)	Uzbekistan (national procedure)
Regulator	National bodies: Rosstandart (RF), KazStandard (RK), BelGIM (RB), etc.	Uzstandard
Area of document validity	One country that issued the certificate. Other EAEU countries require independent type approvals.	Only the Republic of Uzbekistan
Need for a local representative	Mandatory registration of the applicant in the specific EAEU country (legal entity or representative office).	For a batch – only the local importer; for a series – the manufacturer or its representative.
Certificate validity period	5 years (series), indefinite (single unit).	Up to 5 years (series); for a batch – contract duration.
Initial verification	Can be carried out at the manufacturing plant if it is accredited in the national system of the importing country.	Mandatory on the territory of Uzbekistan for each batch.
Cost and timelines	Comparable to completing a full cycle in each country. Timeline: 2–4 months per country.	Cost is comparable, plus verification costs for each unit. Timeline: 1.5–3 months.

5. Typical mistakes of applicants and how to avoid them

1. Confusion between a safety certificate and metrology. Having an EAC or GOST Uz does not replace MI type approval. These are two parallel and equally mandatory documents.

2. Expecting automatic recognition for an imported instrument throughout the EAEU. The most dangerous misconception: a Russian certificate for a Chinese-made instrument is not valid in Kazakhstan. Plan a separate national procedure in each country of the Union.

3. Skipping initial verification in Uzbekistan. Equipment may clear customs and end up in a warehouse, but it cannot be sold without a verification report performed in the Republic of Uzbekistan.

4. Incomplete set of software documentation. If the MI contains software, its metrologically significant part must be identified, protected, and described in the documentation. This is a mandatory test point.

6. Frequently asked questions

Question: Does the procedure apply to the import of a single unit for own needs? Answer: Yes. Even importing one expensive laboratory analyzer for internal quality control will require type approval if the instrument is used in state-regulated areas. A simplified procedure (indefinite certificate) is available for single units.

Question: Can I use a Russian certificate to sell a Chinese instrument in Kazakhstan? Answer: No. For legal import into Kazakhstan, you must undergo the Kazakhstani national type approval procedure and obtain a certificate from KazStandard. The Russian certificate does not substitute for local approval in this case.

Question: What happens if an instrument is already sold and used without type approval? Answer: Fines and an order to remedy the violation. Confiscation of instruments is possible upon repeat inspection. Measurements from such instruments have no legal force, leading to financial losses in commercial resource metering.

Question: Is it possible to obtain type approval in Russia if the manufacturer is located in China? Answer: Yes. An authorized Russian legal entity (importer or representative) may act as the applicant by providing a contract with the manufacturer. The obtained Russian certificate is valid only on the territory of the Russian Federation. For other EAEU countries, their own national certificates must be obtained.

Conclusion

Entering measuring instruments into the register is a multi-stage, technically complex procedure that is not replaced by safety certification. When working with the EAEU, it is essential to consider the country of origin: for instruments manufactured within the Union, there is a unified procedure with mutual recognition; for equipment from third countries, each EAEU state requires its own national type approval. Uzbekistan maintains a completely independent system with mandatory initial verification of each batch. The key to success is early planning, choosing the correct pathway, and allocating time and budget for metrological legalization in each target state. Only a complete package, including the “safety mark” and a metrological certificate, provides lawful and unimpeded access to the end consumer.

Important: if you are supplying environmental monitoring equipment to Uzbekistan, keep in mind — it is not enough to obtain only a certificate of conformity or even to enter the device into the state register of measuring instruments. You will additionally need to obtain an environmental certificate from SUE “Davekosertifikat” (we have covered this procedure in detail in a separate article).