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Mississippi Scale Certification & Weights and Measures

✓ Verified from official sources — July 11, 2026

Mississippi runs a state-managed weights and measures program — commercial scale owners deal with the state agency directly. If you operate a commercial scale in Mississippi — at a warehouse, farm, recycling yard, retail store, or truck stop — here is who regulates it, what the law requires, and exactly who to contact.

Who inspects commercial scales in Mississippi?

State-run: MDAC Weights and Measures Division inspectors make routine inspections of all types of commercial weighing devices statewide, plus package and price-verification inspections. Owners contact the Division's Jackson office.

What Mississippi requires of scale owners

Commercial weighing devices must be NTEP type-evaluated with an NCWM Certificate of Conformance or they may not be used commercially in Mississippi. Scale installation requires a Scale Installation Permit, and companies/repairmen that install, test, or repair scales must be licensed by MDAC (service work is documented via the online Service Report Form); no general annual device registration by owners is published.

Devices used to buy or sell by weight must comply with NIST Handbook 44 — in practice this means an NTEP-certified, legal-for-trade scale. Confirm requirements for your device class with the office listed here.

Getting a scale into service — 4 steps

  1. Buy a legal-for-trade (NTEP-certified) scale appropriate for your application and capacity.
  2. Confirm registration and licensing requirements with the Mississippi Department of Agriculture and Commerce ((601) 359-1149 (fax 601-359-1175)) before the scale enters commercial use.
  3. Arrange compliant installation and calibration. Where required, placing-in-service must be done by a licensed or registered service company.
  4. Stay compliant. Pass required inspections, keep calibration current, retain service records.

Common questions

Who certifies commercial scales in Mississippi?
State-run: MDAC Weights and Measures Division inspectors make routine inspections of all types of commercial weighing devices statewide, plus package and price-verification inspections. Owners contact the Division's Jackson office.
What does Mississippi require of scale owners?
Commercial weighing devices must be NTEP type-evaluated with an NCWM Certificate of Conformance or they may not be used commercially in Mississippi. Scale installation requires a Scale Installation Permit, and companies/repairmen that install, test, or repair scales must be licensed by MDAC (service work is documented via the online Service Report Form); no general annual device registration by owners is published.
What is NTEP certification?
NTEP certifies that a scale model meets NIST Handbook 44 standards for commercial use. An NTEP Certificate of Conformance is the standard requirement for legal-for-trade devices across the U.S.
Where do I find official forms and fees?
Use the licensing and forms links in the office panel, or contact the office directly — fee schedules change and some are published only in application documents.

Need calibration, repair, or installation in Mississippi?

Send one request — ScaleRegistry routes it to qualified service providers for your state.

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