An official website of the Commonwealth of Massachusetts
New DOS digital experience · concept preview

Weights, measures, and licenses — done in one place.

Apply for or renew a DOS license, verify a business, report a price-scanner error, or find your municipal sealer. The Division of Standards protects 7 million Massachusetts consumers every time money changes hands.

0
Licenses & permits issued (2023)
0
Devices inspected & certified
$0
Consumer $ saved by sealer program
0
Consumer complaints resolved
Regulatory update · effective 2025-12-05

202 CMR 5.00Unit Pricing and Automated Retail Checkout Systems

Modernizes the Commonwealth's unit-pricing and price-accuracy regime for retailers using scanner and automated checkout (self-checkout, scan-and-go, RFID, AI vision) systems.

Who must comply: Retail food stores and any retailer operating 3 or more automated retail checkout systems (self-checkout, scan-and-go, AI vision, RFID).

What changes
  • All automated retail checkout systems in stores with 3+ registers must be examined by DOS (or a local sealer) at least every 24 months.
  • Unit-price displays must be legible from 3 feet, and included in any digital shelf display.
  • Scan-and-go and self-checkout systems must have a published accuracy rate and a staffed override.
See all 5 changes
Public transparency

Everything DOS does, in one dashboard.

Inspections, complaints resolved, licensing revenue, scanner-waiver fines, gas pump accuracy, and the full 2023 Annual Report — refreshed quarterly instead of once a year as a PDF.

$3.50M
Sealer revenue
$3.10M
Merchant $ saved
$903,387.5
Scanner-waiver fines
188
Certified sealers