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District of Columbia Scale Certification & Weights and Measures

✓ Verified from official sources — July 11, 2026

District of Columbia runs a state-managed weights and measures program — commercial scale owners deal with the state agency directly. If you operate a commercial scale in District of Columbia — 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 District of Columbia?

District-level (state-equivalent) program: DLCP's Office of Weights and Measures registers and inspects all commercially used weighing and measuring devices in DC, inspecting thousands of devices twice every year; there is no county/municipal layer. Owners deal directly with DLCP OWM at (202) 671-4500.

What District of Columbia requires of scale owners

Every commercially used weighing/measuring device (scales, gas pumps, UPC scanners, pharmacy balances, dialysis scales, etc.) must be registered with DLCP before use and renewed annually (registration year Oct 1-Sep 30) via the online portal; per-device fees range from $25 (UPC scanner) and $75 (scales 0-100 lb, max $900/location) to $1,500 (vehicle scales). A $2,034 fine per violation applies for unregistered/uninspected devices and a $250 late fee for missing the Oct 1 renewal deadline.

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 Department of Licensing and Consumer Protection ((202) 671-4500) 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 District of Columbia?
District-level (state-equivalent) program: DLCP's Office of Weights and Measures registers and inspects all commercially used weighing and measuring devices in DC, inspecting thousands of devices twice every year; there is no county/municipal layer. Owners deal directly with DLCP OWM at (202) 671-4500.
What does District of Columbia require of scale owners?
Every commercially used weighing/measuring device (scales, gas pumps, UPC scanners, pharmacy balances, dialysis scales, etc.) must be registered with DLCP before use and renewed annually (registration year Oct 1-Sep 30) via the online portal; per-device fees range from $25 (UPC scanner) and $75 (scales 0-100 lb, max $900/location) to $1,500 (vehicle scales). A $2,034 fine per violation applies for unregistered/uninspected devices and a $250 late fee for missing the Oct 1 renewal deadline.
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 District of Columbia?

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

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Sources: dlcp.dc.gov/node/1614341 | dlcp.dc.gov/page/weights-measures-information