Manifest quantity workplace (MQW)

This is a workplace with hazardous chemicals where quantities exceed amounts in Schedule 11 of the Work Health and Safety Regulations 2012.

An example of a MQW is a retail service station where quantities of petrol exceed 2500 Litres.


The PCBU must notify WorkSafe Tasmania, in addition to meeting the Hazardous Chemical Workplace requirements.

Manifest Quantity Workplace notification form (pdf, 1.4 MB)

When notifying, the PCBU must include a copy of the hazardous chemical manifest.

For a MQW that WorkSafe has already been notified of, further notification must be made when:

  • there is a change of PCBU
  • Schedule 11 hazardous chemicals no longer exceed MQW quantities
  • there is a significant change to the risk of using, handling or storing schedule 11 hazardous chemicals