Legal Metrology Inspectorate (LMI) Verification Activities


The Legal Metrology Inspectorate (LMI) of the Trinidad and Tobago Bureau of Standards (TTBS) verifies measuring devices used for trade in the Republic of Trinidad and Tobago in accordance with the Metrology Act No. 18 of 2004. Verification determines the accuracy of the measuring device to ensure that consumers get their monies worth. Verification exercises are carried out on prescribed measuring devices, such as scales or fuel dispensers, to ensure that it is measuring accurately and reliably.

Devices that pass the verification exercise are affixed with a “yellow” verification pass sticker. This is a tamper proof LMI sticker that carries an expiry date, a unique device ID and the assigned number of the inspector who carried out the verification exercise. When a device fails the verification test a “not for use in trade” sticker is affixed to the device.

Verification ‘Passed’ sticker


‘NOT FOR USE IN TRADE’ sticker (affixed when the measuring device fails the verification).

Request for Verification

A request for verification can be made using our online request for verification form.


Some of the verification conducted are as follows:





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Trinidad and Tobago Bureau of Standards
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Trincity Industrial Estate
Macoya , Tunapuna
Trinidad and Tobago , W.I

Tel: (868) 662-8827
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