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COVID-19 Updates: Get the latest public information related to coronavirus disease 2019 (COVID-19) at ReadySLO.org.

Due to significant public health concerns from the COVID-19 coronavirus and the need to meet social distancing requirements, the Department of Agriculture/Weights and Measures' offices are currently operating under modified schedules. 

All three of our offices are staffed and have partially re-opened to serve our customers. However, customers are strongly encouraged to call ahead and make appointments for any necessary services. 

Please see the July 2020 Department of Agriculture / Weights and Measures Update for more information on current office hours, or contact us at the Department's main phone line or email.

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Weights and Measures

Program Mission Statement:

The weights and measures program serves the community by safeguarding measurement accuracy and assuring confidence and integrity in the marketplace.

The Weights and Measures program serves the community by assuring confidence and integrity in the marketplace by safeguarding measurement accuracy. Both the buyer and seller are protected when store scales, checkout scanners, packages, taxi meters and gasoline pumps are inspected for accuracy.

Weight Verification

  • Inspection services provide oversight to the accuracy, performance and suitability of devices
  • Inspection of register and meat counter scales found at local retailers
  • Inspection of vehicle scales, livestock scales and platform scales at wineries and recyclers
  • Inspection of jewelry and metal dealer scales used in purchasing scrap metal
  • Inspection of business locations for certificate accuracy and compliance with weighmaster laws when the buyer or seller are not present

Measurement Verification

  • Inspection services provide oversight to the accuracy, performance and suitability of devices
  • Inspection of fuel and oil pumps located at service stations and on delivery trucks
  • Inspection of submeters used to charge for natural gas, water and electricity at mobilehome parks
  • Inspection of compressed gasses such as propane gas (LPG) and natural gas (CNG)
  • Inspection of taximeters for accuracy of distance and time

Quantity Control

  • Assure customer confidence and integrity in the marketplace through the inspection of packaged commodities and pricing audits
  • Pricing audits verify lowest advertised prices are charged correctly at checkout
  • Inspection of prepackaged goods to verify net content statements are met
  • Inspection of prepackaged goods to verify compliance with Fair Packaging and Labeling Act
  • Verify accuracy of transactions when goods are obtained at time of sale

Petroleum Program

  • Assures customer confidence and integrity in the marketplace through the inspection of petroleum advertising and products
  • Inspection of fuel and lubricant samples for quality standards
  • Inspection of price signs and labeling at fuel locations for uniformity and compliance with state law

Registered Service Agency Program

  • Oversee repair companies and device repairmen for licensing and operating conditions under state laws and regulations
  • Review of service reports and repair work to assure compliance with device requirements
  • Review of service agency standards and equipment

Related Services

Certified Farmers' Market Scale Inspection
Device Inspection/Registration Services
Petroleum Inspections
Price/Device Accuracy - Customer Complaint
Quantity Control
Weighmaster Enforcement Program