If the design is modified or upgraded, it is then required to comply with current standards. A new submission for registration (and application fee) would then be required.
The regulation recognises design registrations issued by other health and safety regulators. You are not required to re-register a plant design in Queensland if you have a design registration number issued for the design of the item of plant. If you are supplying the plant, you will need to provide the design registration number with each item supplied and keep the registration document available for inspection.
If your plant design comes from overseas, you will need to have the plant design verified in order to ensure that it meets the appropriate technical standards or engineering principles.