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Tel: (868) 662-8827 / 663-4835 Ext 2348 or (868) 750-0686 | Fax: (868) 663-4335



Legal metrology is the branch of metrology that deals with laws and regulations relating to units of measurement, measuring devices and measurement methods.  It helps provide support and protection to areas such as public safety, health, the environment and trade.

Indeed, one of the main roles of legal metrology is to ensure that measuring devices used in trade provide accurate measurements.  This is done through a process called verification.  This involves conducting a series of tests on the measuring device, such as a scale or fuel dispenser, to ensure that it is measuring accurately and reliably.

Request Verification

– Request For Verification Process –

Step One

Fill out the appropriate request for verification form here.

Step Two

An email will be sent to you with a link to view your invoice or pay online using credit card or cash voucher.

Step Three

Make e-payment online or via an inspector’s handheld device. Cash is not accepted.

Step Four

Await call to schedule verification. If you have special access requirements please contact us at 662-8827 ext: 2348, mobile: 750-0686.

LMI Service Fee Schedule

Here is a list of our services and the associated fees. Click below to view.




From a trade or commerce perspective, consumers and traders make decisions based on measurement results daily; measurements that affect economic and personal well-being.  Thus, a well-functioning society must have confidence in its measurements.

Governments therefore need to give society the means to establish confidence in measurement results, so that traders, consumers, regulators, industry and others can make informed decisions based on accurate measurements.  This is a role supported and facilitated by a sound legal metrology system.  In fact, public trust in good measurement enforcement encourages respect for and compliance with the law.

A certified product carries the Trinidad and Tobago Standard Mark.


A robust and working legal metrology system is a fundamental need for any country. Having been proclaimed in 2015, the country’s metrology legislation – the Metrology Act No.18 of 2004 – formalizes, the legal metrology system and gives citizens greater assurance in the measurement capabilities of the country.

For further information on the role of legal metrology in the areas of Trade, Safety, Health and the Environment, please click here

Verified Devices:

Click here to view a list of verified fuel stations
Click here to view a list of verified courier scales
Click here to view a list of Supermarkets, Groceries and Minimarts with verified scales
Click here to view a list of Verified Food-By-Weight Restaurant Scales

News & Events

Metrology Act No. 18 of 2004

The Metrology Act of 2004 has given a number of responsibilities to the Trinidad and Tobago Bureau of Standards.

Read More