During the pattern approval process, we examine the design of an instrument. To comply, the instrument pattern must meet its related mandatory requirements.

If your instrument complies with the pattern approval process, we issue a certificate of approval.

The National Measurement Institute (NMI) assesses your submitted pattern to ensure it meets relevant requirements.

Apply for pattern approval and other testing services.

Terms and conditions for accessing the National Measurement Institute's training and assessment services.

Use this form to apply or renew your public weighbridge license.

Use this form for operator nomination and change of details.

To conduct public weighings, you must hold a current public weighbridge licence.

A weighbridge determines the mass of a vehicle, including the prime mover and any connected trailers. A public weighbridge is open for use by the public, generally for a charge.

Public weighbridges are open for public use for a charge under the National Measurement Act 1960.