EVgo Electric Vehicle Charging Station
EVgo Electric Vehicle Charging Station

National Weights and Measures Week is March 1st - 7th

Author: David Aguayo: Deputy Agricultural Commissioner/Sealer
Date: 3/2/2018 8:00:00 AM

The San Luis Obispo County Department of Agriculture/ Weights and Measures announces National Weights and Measures Week, March 1-7, 2018 to commemorate President John Adams’s signing of the first United States weights and measures law on March 2nd, 1799.


Inspectors from the San Luis Obispo County Department of Agriculture/ Weights and Measures oversee the use of commercial weighing and measuring devices and encounter a wide range of technologies used in scales, meters and other devices throughout the local marketplace. Staff stay current by participating in specialized trainings to meet the demand of past, present, and fast-changing future technologies. From shelf to scanner, pump to vehicle, Weights and Measures Inspectors make certain customers get what they pay for.

Though 21st Century technology may incorporate and use more complex weighing and measuring devices, the basic units and principals remain the same, a pound still equals 16 ounces, one mile still equals 5,280 feet, and one gallon is still 231 cubic inches.

Examples of evolving industry practices that Inspectors face include vehicles that use GPS to measure distance traveled; electric vehicle charging stations that measure in kilowatts per hour; and systems that measure hydrogen fuel by mass for hydrogen vehicles. Additional aspects of weights and measures regulation is the legalization and commercial sales of cannabis in various forms and the inspection for skimming devices that use sophisticated technology for fraudulent credit card charges.  

According to Martin Settevendemie, Agricultural Commissioner / Sealer of Weights and Measures, “we owe a great debt of gratitude to the Inspectors and the local commercial business operators for their dedication to consumer protection and equity in the fast-paced and ever-changing marketplace.“

Consumers are encouraged to contact a local Weights and Measures Inspector at (805) 781-5910 if they feel they have been overcharged.