In Ohio, day-to-day scale inspection is handled at the county or local level, with the state agency setting standards and providing oversight. If you operate a commercial scale in Ohio — 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 Ohio?
County-based: county auditors (serving as county sealers) and city programs test and inspect commercial devices; ODA assists with vehicle scales, livestock scales, fuel meters, and packaged goods, and runs the metrology/NTEP lab.
What Ohio requires of scale owners
Vehicle, livestock, and railway scales (plus vehicle tank, LP truck, and bulk rack meters) must have registered ODA device permits (online: apps.agri.ohio.gov/WeightsDevicePermits), and service work must be done by a mandatory Registered Serviceperson.
Getting a scale into service — 4 steps
- Buy a legal-for-trade (NTEP-certified) scale appropriate for your application and capacity.
- Contact your county or local Weights & Measures office to confirm registration, fees, and inspection scheduling (state program: Ohio Department of Agriculture, (614) 728-6290).
- Arrange compliant installation and calibration. Where required, placing-in-service must be done by a licensed or registered service company.
- Stay compliant. Pass required inspections, keep calibration current, retain service records.
Common questions
Who certifies commercial scales in Ohio?
What does Ohio require of scale owners?
What is NTEP certification?
Where do I find official forms and fees?
Need calibration, repair, or installation in Ohio?
Send one request — ScaleRegistry routes it to qualified service providers for your state.