You must use a weighbridge of a type approved by Trading Standards when it is used for trade.

Every weighbridge should be designed so that the operator, when positioned by the primary indicator, has a clear view of the load receptor.

Weighbridges must be maintained and kept cleared of debris. Trading Standards recommends that your weighbridge is tested annually and issued with a Certificate of Accuracy.

Approved types of weighbridges

You must use a weighbridge of a type approved by Trading Standards when it is used for trade.

Find out more about approved types of measuring and weighing equipment.

The weighbridge must also have the mark of verification stamped upon it. The mark of verification is a crown or the letters 'AP' followed by a number. It is issued by either the Trading Standards or an Accredited Person approved for the purpose under the Weights and Measures Act.

Trading Standards strongly recommends you have your weighbridge tested annually and issued with a Certificate of Accuracy. Testing is undertaken by Accredited Persons.

Location and condition of weighbridges

Every weighbridge should be designed so that the operator, when positioned by the primary indicator, has a clear view of the load receptor.

Weighbridge deckplates must be bolted down and must be clear of the surrounds.

Weighbridge pits must be regularly cleared of accumulated debris such as spillage of fertiliser.

Road weighbridges, and road or rail weighbridges, must not be used for trade unless they meet all three of these conditions: 

  • approaches are smooth, straight, and on the same level as the load receptor
  • approaches have a run-on and run-off constructed of concrete or other suitable material
  • there is adequate drainage, and the bridge is kept free of mud and other debris. 

Weighbridge ticket

Where goods are delivered loose in bulk by weight or measure, the seller of the goods must send or deliver to the purchaser a delivery note, invoice, or weighbridge ticket stating the net weight of the goods delivered. The invoice, delivery note, or weighbridge ticket may also show: 

  • date, eg 20 October 2010, or 20/10/10
  • name and address of seller
  • name and address of purchaser
  • cost. 

Penalties

For using an inaccurate or unapproved type of weighbridge the penalty is an infringement offence notice (issued by Trading Standards), with a fee of $500. Alternatively, on conviction in the District Court, you will be fined up to a maximum of $5,000.

For delivering or causing to be delivered a quantity less than purported or where the quantity does not correspond with the price charged, the penalty is a fine up to a maximum of $5,000 as this type of offence can only be prosecuted in a District Court.