Yes
For Scale and Meters:
There is a class and then you must take a test. We offer the course and test in Helena, MT and hold classes 3 to 4 times per year or when there are enough participants to warrant a class.
For Belt Scales, Railroad Track Scales and LPG:
There is no class; you may arrange a test date with us that fits your schedule.
To sign up for a class or schedule a test:
Email weightsandmeasures@mt.gov or call (406) 439-4193
You will fill out the registration forms after you pass the test. You must also provide certification done within the past two years at any NIST lab for all standards that will or may be used in Montana.
Does your state require a special security/tamper proof seal to be placed after calibration?
Yes, a plastic or wire tamper resistant seal must be placed on the device after it is calibrated and it must have your assigned registration number on it. A sticker is acceptable for devices which cannot be “sealed,” 30 pound scanner scales, for example. Your sticker must identify you, your company, and the date of service. See question 12.Yes, all devices placed into service for the first time in Montana and manufactured after January 1, 1999 must have an active certificate of conformance. To search, go to:
Is there a pre-notification to the state on when we will be placing the new scale/ systems into service?
No.A placed in service form must be submitted (or post marked) within 5 working days of the service date for all scales and meters. A test report is required for any scale with a capacity of 8000 or more pounds. We can furnish you with the placed in service form or you can develop your own. If you use an alternate form, you must have it approved by us prior to use. You can submit them by email, fax or mail for approval.
Placed in service forms:
Scale Placed in Service Form
Mailing Address:
Weights and Measures Bureau
PO Box 200516
Helena, MT 59620-0516
Email: weightsandmeasures@mt.gov
Fax: (406) 841-2050
If our standards or equipment are certified at another state lab can they be used in Montana?
We accept certificates of calibration from any NIST recognized laboratory. You must provide copies of the certificates when you register.