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Legal Metrology Manufacturer Licence: Complete Guide

Making weighing and measuring instruments for the Indian market.
23 September 2026 by
Legal Metrology Manufacturer Licence: Complete Guide
Gaurav Kumar
Product Certification (BIS, CE, ISO)Complete Guide3 min read
The short answer

Manufacturers of weights, measures and weighing or measuring instruments need a manufacturing licence from the state Legal Metrology Controller, and each model must first receive model approval from the Director of Legal Metrology. Applicants need a suitable workshop, testing equipment, qualified staff, and must produce instruments conforming to the approved model.

PrerequisiteModel approval
AuthorityState Legal Metrology Controller
RequirementsWorkshop, testing equipment

Requirements

  • Manufacturing premises
  • Testing and calibration equipment
  • Technical staff

Process

  1. Obtain model approval.
  2. Apply for manufacturing licence.
  3. Inspection.
  4. Licence grant.

Production compliance

Mark instruments with model approval number and ensure initial verification.

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Renewal

Renew licence as per state rules.

Frequently asked questions

Is model approval central or state?

Model approval is granted by the Director of Legal Metrology at the central level.

Do component makers need licences?

Depends on whether components are regulated instruments.

Can I manufacture in multiple states?

Each manufacturing location needs a licence from its state.

What about imports?

Importers register separately with the Director.

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