The Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) Bureau of Weights and Measures provides resources and licensing for service companies and technicians that work with weights and measures devices.
Service Companies
Businesses that install, service, test or calibrate weights and measures are required under Wis. Admin. Code § ATCP 92.20 to be licensed by DATCP. Licenses expire on December 31 of each year and are not transferable between persons or business locations. To acquire a license, apply online or submit a physical application to DATCP.
Example Test Reports
DATCP has developed the following example test reports in order to assist service companies in complying with the legal requirements for weights and measures test reports. Use of these reports is optional.
Service Technicians
Individuals who are employed by a weights and measures service company and who provide testing, calibration, service, or sealing to a weighing and measuring device; verify that the device is correct; or who remove an official rejection tag or mark applied under Wis. Admin. Code § ATCP 92.09 (2), are required under Wis. Admin. Code § ATCP 92.21 to have technician certification issued by DATCP. Certification must be renewed every five years. Certification types are:
| - Petroleum Loading Rack Meters
- Railroad Track Scales
- Retail Computing Scales (up to 300 lb. capacity)
- Retail Motor Fuel/Liquid Measuring Devices
- Timing Devices
-
Vehicle Scales (over 5,000 lb. capacity)
-
Vehicle Tank Meters
|
Certification Exams
Weights and measures service company technician exams are proctored by the National Council on Weights and Measures (NCWM) via their Registered Service Agent (RSA) exam program. NCWM offers both online and in-person exams. For additional exam information or to sign up to take a RSA exam, please visit the NCWM website.
To obtain a weights and measures service company technician certification, technicians must pass the applicable technician certification exam(s) as follows:
| Certification Type | Required NIST Registered Service Agent Exam(s) |
Agrichemical/Mass Flow Meters
| - NIST Handbook 44 and NIST Handbook 130 – basic
- Wisconsin Agrichemical/Mass Flow Meter
|
| Belt Conveyer Scales | - NIST Handbook 44 and NIST Handbook 130 – basic
- Wisconsin Belt Conveyer Scales
|
| Compressed Natural Gas (CNG) & Liquefied Natural Gas (LNG) | - NIST Handbook 44 and NIST Handbook 130 – basic
- Wisconsin Agrichemical/Mass Flow Meter
|
| Farm Milk Tanks | |
| Liquified Petroleum Gas (LPG) | - NIST Handbook 44 and NIST Handbook 130 – basic
- LPG and Anhydrous Ammonia Liquid Metering Systems
|
| Livestock Scales | - NIST Handbook 44 and NIST Handbook 130 – basic
- Large Capacity Weighing Systems
|
| Medium Capacity Scales (301 to 5,000 lb. capacity) | - NIST Handbook 44 and NIST Handbook 130 – basic
- Large Capacity Weighing Systems
|
Petroleum Loading Rack Meters
| - NIST Handbook 44 and NIST Handbook 130 – basic
- Vehicle-Tank Meters
|
Railroad Track Scales
| - NIST Handbook 44 and NIST Handbook 130 – basic
- Large Capacity Weighing Systems
|
Retail Computing Scales (up to 300 lb. capacity)
| - NIST Handbook 44 and NIST Handbook 130 – basic
- Small Capacity Weighing Systems
|
Retail Motor Fuel / Liquid Measuring Devices
| - NIST Handbook 44 and NIST Handbook 130 – basic
- Retail Motor Fuel Dispensers
|
Timing Devices
| - NIST Handbook 44 and NIST Handbook 130 – basic
|
| Vehicle Scales (over 5,000 lb. capacity) | - NIST Handbook 44 and NIST Handbook 130 – basic
- Large Capacity Weighing Systems
|
Vehicle Tank Meters
| - NIST Handbook 44 and NIST Handbook 130 – basic
- Vehicle-Tank Meters
|
Certification Application
To apply for a certification, technicians must submit to DATCP:
- Service Company Technician Certification Application (Form TR-WM-81)
- Proof the technician has passed the applicable NCWM RSA exams required for the certification type
- Please note, there is no fee to apply for a weights and measures service company technician certification.
Laws and Regulations