The Division of Weights and Measures enforces all of the state's laws affecting the measurement of commodities moving in commerce. The purpose is to ensure consumers receive an accurate quantity and adequate information about commodities so that they can make price and quantity comparisons. Among its functions is the inspection of scales weighing in thousandths of a pound up to platform scales used to weigh up to 100,000 pounds. It inspects meters used for delivery of fuel oil, liquid propane gas, gasoline pumps, and containers used for measuring any type of liquid or solid commodity. The division also enforces the uniform date code system for processed food products and numerous other provisions of law affecting pricing and sale of commercial goods. The division also provides measurement calibration services in the areas of mass, length and volume to industry located within the state as well as industry located outside the state.
Senate Bill157 (2011), relative to the division of weights and measures and fees for licensing weighing devices and the definition of service technician, passed and became effective July 1, 2011. This law amends RSA 438 and will allow a registered service technician to affix a certification seal to a device after determining it is in compliance. The division has adopted interim administrative rules to implement these changes to RSA 438. These rules are now operative, and are posted for your convenience. Interim rules are temporary, and must be followed promptly by the regular rule-making process.
Division of Weights & Measures Interim Rules
*The following two documents do not reflect changes due to SB-157(2011)
2013 Scale Clinic Flyer
Legal for Trade Scale Specs
Method of Sale Information
Guidelines for Farmers' Markets--Fresh Fruits & Vegetables
For further inquiries, please contact (603) 271-3700.
Device License Applications:
Information for Businesses with Commercial Scales
Initial Application for Weighing & Measuring Device License
Update for Weighing & Measuring Device License
National Institute of Standards & Technology (NIST) Weights & Measures Division website: www.nist.gov/owm
National Institute of Standards & Technology (NIST) Lab Metrology Group website: www.nist.gov/labmetrology
Petroleum Equipment Institute Website: www.pei.org
ASTM International (formerly known as the American Society for Testing and Materials) website: www.astm.org
View a list of Division of Weights & Measures Publications
All documents have been saved in Adobe Acrobat Reader format unless otherwise indicated. To view PDF files, you will need the Adobe Acrobat Reader which is available for free from Adobe.
Visit the Contact Us page for Division of Weights & Measures contact information.