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Weights and Measures Office

Overview

Find out how to trade responsibly by ensuring weighing and measuring instruments are approved, verified and accurate, and that pre-packaged goods comply with declared net contents.

Last updated 23 June 2026

Be a responsible trader

Ensure compliant weighing and measuring instruments
Businesses must ensure that weighing and measuring instruments used for trade are type-approved, registered with the Weights and Measures Office, and verified to be fit for trade by Authorised Verifiers.

Digital grocery scale with a touchscreen showing weight, unit price, total price, and vegetable and fruit category buttons.

Traders should also ensure that their weighing or measuring instruments are:

  • Accurate at all times;

  • Installed and used in suitable environmental conditions, e.g. weighing scales should be used on level ground;

  • Zeroed before goods are weighed or measured;

  • Cleaned and free from foreign particles on the weighing or measuring areas, e.g. weighing pan, dispenser nozzles;

  • Sent for annual verification to prevent short weights or measures;

  • Affixed with the Weights and Measures verification seal at all times;

  • Affixed with a valid ACCURACY Label that is visible to consumers at all times; and

  • Showing a visual reading to consumers, e.g. with the use of electronic dual-faced indicator type of instruments.

Ensure accurate net contents of pre-packaged goods
The net contents of pre-packaged goods sold must not be less than the quantity stated on the package or label.

For further information, please refer to the respective sections relevant to your company's nature of business: