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I am a public weighbridge licensee

Automated public weighbridges

Automated public weighbridge licence applications must comply with the 'Guidelines for Weighbridge Control Systems'.

When making an automated public weighbridge application, the applicant must provide a declaration stating that the automated public weighbridge complies with the 'Guidelines for Weighbridge Control Systems'.

If an existing public weighbridge is modified to incorporate an automated system, a declaration stating that the automated public weighbridge complies with the 'Guidelines for Weighbridge Control Systems' is required.

Declarations can be emailed to the Licensing team at tmlicensees@measurement.gov.au 

Definition of Public Weighing

A ‘weighbridge’ is defined in the National Measurement Act 1960 as a ‘measuring instrument of one or more platforms that determines the mass of vehicles or livestock and has a measuring capacity of 3 tonnes or more’.

A weighbridge can be used to determine the mass of a vehicle, including prime mover and connected trailer/s, in a single operation or by the application of end-and-end when allowed under the National Trade Measurement Regulations 2009. A weighbridge may also be used to separately record the weight of axles (or groups of axles) to ensure compliance with local transport regulations.

The operator of a weighbridge is the person using a weighbridge to conduct a measurement. The operator does not have to be the owner of the weighbridge.

A public weighbridge is defined in the National Measurement Act 1960 as a weighbridge that:

  • is open for use by or on behalf of the public; or
  • is available for use for a charge.

A public weighing occurs when a weighbridge is made available for trade use and in either of the two circumstances stated above, without a prior contractual arrangement between the operator of the weighbridge and the person for whom the weighing is being performed.
The operator of the weighbridge will be required to hold a public weighbridge licence to conduct public weighings. Public weighings are required to be recorded on a measurement ticket. Examples of the measurement tickets used for public weighings can be underLicensing Directive PW 12/05.

A weighing is not considered to be a ‘public weighing’ when the use of the weighbridge:

  • is subject to a prior contractual arrangement between the controller of the weighbridge and person for whom the weighing is being performed, which does not include a fee per use charge; or
  • for the operation of the operator’s business. i.e. to weigh goods in which the operator trades; or
  • to determine the tare mass of a vehicle or trailer for registration purposes.

These types of weighings are not considered to be public weighings, therefore are not required to be carried out under a public weighbridge licence.

Change of partnership

You need to submit a change of partnership form and a pay $125 fee if your business partnership arrangements change.

Frequently Asked Questions

Q1. Can you confirm the requirements for conducting end-and-end measurements on weighbridges?

A. End-and-end measurements are only permitted on weighbridges approved for such measurements prior to 1 July 2010, and when the approaches to the platforms are level to within ±0.25º of horizontal. Further information on these requirements and possible exemptions are detailed in PW 12/01 Changes to Weighbridge Requirements.

Q2. Does a public weighbridge have to be used to determine the tare mass of a vehicle (including trailers) for registration purposes?
A. No. Weighing a vehicle for registration purposes is not considered to be a public weighing and can be completed on any weighbridge in use for trade. However, the tare weight can also be recorded as a public weighing on a measurement ticket completed by a holder of a public weighbridge licence. For registration purposes only, any measurement tickets issued using a non-public weighbridge to record the tare mass of a vehicle or trailer, will need a statement that the ticket is for the purpose of registration. Please keep in mind that in some jurisdictions, the tare weight of the vehicle for registration purposes, will only be accepted by the local transport authority if the weighing is conducted on a public weighbridge.
Q3. Can a public weighbridge licensee use more than one booklet or pad of measurement tickets at the same time?
A. Yes, under the following conditions:
  • the use of multiple books or pads of measurement tickets is limited to regular customers as long as the pre-printed measurement tickets are a different series of numbers
  • the tickets in all books or pads are issued sequentially
  • the pre-printed book or pad of measurement tickets is not used for any other client
  • all other public weighings are recorded sequentially in one book or pad of measurement tickets
Q4. Can a public weighbridge licensee have an electronic ticketing system and keep a hard copy booklet of measurement tickets (or pad of tickets) for backup?
A. Yes. However, only in the instance that the measurement ticket printer fails to produce a ticket. If you are using a backup booklet or pad of pre-printed measurement tickets, they must be compliant with the approved format, and issued in compliance with the national trade measurement legislation.
Q5. The approaches to my weighbridge are made from bitumen not concrete. Since I received approval from the previous State trade measurement authority to use non-concrete approaches, do I still need to seek approval from NMI for the same concessions?

A. Yes. As of 1 July 2011 any prior approvals granted under an earlier corresponding law are no longer valid. Owners of trade weighbridges with an approach surface that is not concrete can seek approval to use an alternative material. Further information on this application process is available in directive PW 12/03 Trade Weighbridge Approach Requirements.

Q6. I am currently using an old National Standard Commission (NSC) publication, Leaflet No 29 Guidelines for Automated Weighbridge Systems when constructing a weighbridge. Is this document still valid?  
A. Yes, with the following qualifications:
  • Leaflet No 29 is a guidance document that includes principles which are still relevant for the operational devices required for weighbridge installation
  • all weighbridges must comply with the rules set out in Part 3 of the National Trade Measurement Regulations
Q7. I have two weighbridges on my site (an ‘in’ weighbridge and an ‘out’ weighbridge). Can I conduct a public weighing by determining a tare weighing on the ‘in’ weighbridge, and a gross weighing on the ‘out’ weighbridge?
A. Yes, with the following qualifications:
  • the two weighbridges must be on the same site
  • a public weighbridge licence is required for each weighbridge; this includes the condition that both weighbridges are verified every 12 months
  • measurement tickets produced must contain reference to both public weighbridge licence number