Legal Metrology Model Approval: Process & Fees

A Legal Metrology Model Approval Certificate is an important compliance document for businesses dealing with specified weights, measures and weighing or measuring instruments in India. Model approval is concerned with the design and performance of an instrument before it is manufactured, imported or used in situations covered by Legal Metrology requirements.

The Department of Consumer Affairs provides a dedicated Model Approval System for applications relating to approval of models of weights and measures and weighing and measuring instruments under Section 22 of the Legal Metrology Act, 2009.

Knowing the approval process before preparing the application can help manufacturers and importers to avoid incorrect specifications, incomplete documents and unnecessary corrections.

What Is a Legal Metrology Model Approval Certificate?

Model approval is the process through which the competent authority examines a particular model of a weight or measure or a weighing/measuring instrument against the applicable Legal Metrology requirements.

The certificate relates to the approved model and its specified characteristics.

It is different from routine verification or stamping of an individual instrument.

For example, an electronic weighing scale manufacturer may need to address model approval requirements for the particular design before the instruments are supplied for regulated commercial use.

The official Legal Metrology portal specifically provides applications for approval of models under Section 22 of the Legal Metrology Act, 2009.

Which Products Can Require Model Approval?

The exact applicability depends on the instrument and its intended use.

Examples of products appearing in the official model approval records include:

• Non-automatic weighing instruments

• Measuring tapes

• Gas meters

• Flow meters

• Automatic gravimetric filling instruments

• Measuring systems for liquids

• Other weights and measures

The Department's published certificate records show model approvals being issued for these and other categories during 2026.

This is why businesses should identify the exact instrument category before applying.

Model Approval vs Verification

These two terms are sometimes confused.

Model approval deals with approval of the model/design and applicable technical characteristics.

Verification generally concerns an individual instrument being checked against prescribed requirements before or during regulated use.

A business may therefore need to consider both requirements, depending on its product and business activity.

Obtaining a model approval certificate should not automatically be understood as completing every Legal Metrology obligation applicable to the product.

Legal Metrology Model Approval Process

The process can vary according to the product, but a practical approach is:

1. Identify the instrument

Start with the exact product name, type and intended application.

For example, do not simply describe a product as an "electronic scale." Determine whether it is a non-automatic weighing instrument, automatic instrument or another regulated category.

2. Check applicable specifications

Review the relevant Legal Metrology requirements and technical specifications applicable to the instrument.

The Legal Metrology Department states that specifications for weighing and measuring instruments are prescribed under the Legal Metrology (General) Rules, 2011.

3. Prepare technical information

The application may require technical specifications, drawings, photographs, operating information and other product-related documents.

The exact requirements depend on the model.

4. Submit the application

The Department provides an online Model Approval System. The official portal includes registration and login facilities for model approval applications.

5. Technical examination

Information and instrument submitted may be checked against applicable requirements.

If additional information or clarification is needed before the application can proceed, the applicant may be asked to respond to the request.

6. Certificate issuance

Once the model is approved, the applicable certificate is issued.

The Department publicly maintains model approval certificate records, including certificate numbers, application numbers, equipment categories and issue dates.

What Is the Model Approval Certificate Format?

Businesses often search for model approval certificate format before beginning an application.

There is no reason to rely on an unofficial template simply because it appears online.

Actual government-issued certificates can contain information such as:

• Certificate number

• Application number

• Company/manufacturer information

• Equipment description

• Model information

• Applicable technical details

• Conditions of approval

• Date of issue

• Authorised government official's details

• Digital signature or authentication

Published government certificates demonstrate that the format can include detailed technical conditions specific to the approved instrument.

Therefore, a sample certificate should be used only for understanding the type of information involved, not as a substitute for the official application requirements.

Model Approval Fees

There is no single universal model approval fee for every type of weighing or measuring instrument.

The overall expense can depend on:

• Product category

• Number of models

• Applicable government charges

• Testing or examination requirements

• Technical documentation

• Laboratory expenses, where applicable

• Travel or inspection-related expenses, where applicable

• Professional consultancy charges

• Applicable taxes

Businesses should verify the current fee applicable to their particular application rather than using an old fee figure from another product category.

Common Reasons Applications Need Correction

Several practical issues can create delays or clarification requests.

These may include:

• Incorrect model number

• Inconsistent technical specifications

• Missing drawings

• Incomplete manufacturer information

• Incorrect product classification

• Mismatch between test information and application details

• Unclear photographs

• Incomplete supporting documents

A document review before submission can therefore be useful, particularly for imported or technically complex instruments.

Can Model Approval Be Applied Online?

Yes. The Department of Consumer Affairs provides an online Model Approval System for applications under Section 22.

The current Legal Metrology portal also directs applicants toward the National Single Window System for applications relating to approval of models of weights and measures and weighing/measuring instruments.

Applicants should use the current government route applicable to their application instead of relying on outdated third-party instructions.

How Agile Regulatory Can Help

Agile Regulatory assists manufacturers, importers and businesses with Legal Metrology-related compliance requirements.

Our support can include:

• Product applicability review

• Document checklist preparation

• Technical document coordination

• Application assistance

• Model approval support

• Clarification assistance

• LMPC-related registration guidance

• Import compliance support

The exact requirements are assessed according to the product rather than using a generic checklist.

Frequently Asked Questions

What is a Model Approval Certificate?

It is an approval issued for a model of a weight, measure or weighing/measuring instrument under the applicable Legal Metrology framework.

Is model approval the same as LMPC registration?

No. Model approval and LMPC/packaged-commodity registration address different compliance requirements.

Can I apply for model approval online?

The Department of Consumer Affairs provides an online Model Approval System for applicable applications.

What is the model approval fee?

The applicable cost depends on the product and current government requirements. Testing and professional service expenses may also apply.

Is model approval required for every weighing scale?

Applicability depends on the type, use and Legal Metrology requirements applicable to the particular instrument.

Conclusion

A Legal Metrology Model Approval Certificate is an important part of compliance for businesses dealing with regulated weighing and measuring instruments.

The safest approach is to identify the correct instrument category, check the applicable requirements, prepare consistent technical documents and submit through the appropriate government system.

For manufacturers and importers, getting the product classification and documentation right at the beginning can make the overall compliance process much easier.