By Byron Raal, CAS Founder-Editor · Last updated 29 May 2026 · About the author
Victoria is the only Australian jurisdiction that doesn’t require item registration of pressure vessels, and that catches people out. It runs its own occupational health and safety framework, not the harmonised WHS laws, so WorkSafe Victoria registers the vessel design but not the individual tank. Simpler in one respect, a trap in another: read “no item registration” as “no obligation” and you walk straight into enforcement on design traceability and inspection.
This page sets out the Victorian position: why Victoria is different, what design registration actually requires, what Victorian operators still have to do even without item registration, and the inspection cadence WorkSafe Victoria publishes for air receivers. It is written for plant managers, maintenance engineers, and procurement teams running compressed air in Victoria, particularly those whose fleets also cross into other states.
Why Victoria is different
Victoria regulates plant under the Occupational Health and Safety Act 2004 and the Occupational Health and Safety Regulations 2017, not the model Work Health and Safety laws used in New South Wales, Queensland, Western Australia, and South Australia. Under the Victorian regulations, the plant requiring registration of design is set out in Schedule 2, and pressure equipment is on that list. There is no separate item or plant registration of pressure vessels with WorkSafe Victoria: the design is registered, and individual tanks built to that registered design are not separately registered.
Design registration in Victoria does not expire. It stays valid for the lifetime of the plant unless the design is altered to an extent that introduces new measures to control risk, in which case the altered design must be registered. A design registered, confirmed, or approved in another Australian state or territory is recognised in Victoria, so there is no need to re-register an interstate design when a vessel moves into Victoria.
AS 4343 hazard level and what requires design registration
Whether a vessel’s design must be registered turns on its hazard level under AS 4343:2014 Pressure Equipment Hazard Levels. Five levels run A (highest) to E (lowest). Pressure equipment at hazard level A, B, C or D requires design registration; hazard level E does not.
Under Clause 2.2.1 of AS 4343:2014, H = P × V × Fc × Ff × Fs, where P is design pressure in MPa, V is volume in litres, Fc is 10 for a gas, Ff is 1.0 for non-harmful gas, and Fs is 1 for standard service. For a clean compressed air receiver this simplifies to H = 10 × P (MPa) × V (L).
Worked example: 1,000 L receiver at 1,000 kPa design pressure
- Design pressure, P = 1,000 kPa = 1.0 MPa
- Volume, V = 1,000 L
- H = 10 × 1.0 × 1,000 = 10,000
- 10,000 sits exactly on the B/C boundary; under AS 4343 Clause 2.2.8 a value on a boundary takes the lower level, so this is hazard level C. Either way it is well above Level E, so the design must be registered in Victoria; there is no separate item registration step
The table maps the hazard-level boundaries for clean compressed air at standard service. In Victoria the relevant line is whether the vessel reaches hazard level D or above (design registration required) or sits at level E (no registration).
| Design pressure | Level E (no registration) | Level D and above (design registration required) |
|---|---|---|
| 700 kPa (0.7 MPa) | up to ~45 L | above 45 L |
| 800 kPa (0.8 MPa) | up to ~40 L | above 40 L |
| 1,000 kPa (1.0 MPa) | up to ~32 L | above 32 L |
| 1,200 kPa (1.2 MPa) | up to ~26 L | above 26 L |
What Victorian operators still have to do
No item registration does not mean no obligation. Three duties remain, and they are where Victorian enforcement actually lands.
First, design traceability. The design registration number must be traceable to the vessel, normally via the nameplate, and the vessel must be built to that registered design. A receiver with a corroded or missing nameplate, or one that cannot be tied back to a registered design, is a problem in Victoria just as it is interstate.
Second, in-service inspection. WorkSafe Victoria requires air receivers to be inspected by a competent person on a defined cadence and requires records of inspection and maintenance to be kept for pressure vessels at hazard level A, B, C or D under AS 4343. Inspection is a live obligation in Victoria regardless of the absence of item registration.
Third, general plant duties. Under the OHS Act, employers must provide and maintain plant that is, so far as reasonably practicable, safe and without risk to health, and must keep inspection and maintenance records for the period they have management or control of the plant.
Inspection cadence: WorkSafe Victoria’s published table
WorkSafe Victoria publishes air-receiver inspection intervals on its air receiver pressure vessels guidance, sourced from AS/NZS 3788. The published intervals are:
| Air receiver | Commissioning inspection | External inspection | Internal inspection |
|---|---|---|---|
| pV up to 100 MPa·L | No | Regular operating surveillance | Not applicable |
| pV above 100 MPa·L | Yes | 2 yearly | 4 yearly |
Note that pV here is pressure in MPa multiplied by volume in litres. A 1,000 L receiver at 1,000 kPa gives pV of 1,000 MPa·L, well above the 100 MPa·L line, so it falls in the commissioning-plus-2-yearly-external band. WorkSafe Victoria’s published table cites the AS/NZS 3788:2006 edition; the current standard is AS/NZS 3788:2024 Amd 1:2025, which a competent person will apply when scoping the inspection. Where the editions differ, take the WorkSafe Victoria guidance as the regulator’s published position and have the competent person reconcile it against the current standard for your specific vessel.
How to register a design in Victoria
Design registration is lodged with WorkSafe Victoria’s Licensing Branch. You provide the plant designer details, the design technical standards, a signed design verification declaration, and general arrangement or representational drawings. The design verifier must have the relevant knowledge, skills, and qualifications or experience, and must not have participated in the design. Fees are set in fee units and change each financial year on 1 July; price the job against the current WorkSafe Victoria plant and equipment design registration page rather than a figure from last year. Registration and alteration are valid for the lifetime of the plant unless the design is altered.
Who is responsible in Victoria
The employer or person with management and control of the plant is responsible for ensuring the vessel is built to a registered design, traceable, inspected, and maintained, and for keeping the records. The worker operating the plant must report defects and stop using unsafe equipment. The competent person under AS/NZS 3788 is the only role that can certify a vessel fit for continued service, combining a recognised credential (typically AICIP pressure equipment inspector credentialling) with documented experience.
CAS is an independent information and supplier-matching service. We do not inspect or lodge registrations; we connect you with a competent person and with inspection and replacement suppliers across Victoria who quote against your actual fleet.
The interstate fleet trap
The most common Victorian mistake is made by operators whose fleets cross state borders. A receiver registered as an item in New South Wales or Queensland does not need item registration when it moves to Victoria, because Victoria has no item registration. But the reverse catches people out: a vessel commissioned in Victoria under design registration only, with no item registration ever lodged, will need an item registration when it moves to a harmonised state. Track the design registration number for every vessel so the interstate move is a paperwork update, not a retrospective scramble.
Penalties for non-compliance in Victoria
Operating pressure equipment in breach of the design-registration, inspection, or general plant duties is an offence under the Occupational Health and Safety Act 2004 (Vic). Penalties are indexed and revised, so check the current Act for the figures. Enforcement typically begins with an improvement notice and escalates to a prohibition notice that stops the plant being used, then to prosecution. Industrial insurers commonly require evidence of current design registration and AS/NZS 3788 inspection as a condition of cover, and the absence of item registration in Victoria does not change that expectation.
Next step: confirm your Victorian compliance status
Walk the plant room, photograph every receiver nameplate legibly, and confirm each vessel ties back to a registered design. Log the design registration number, design pressure, volume, and fabrication date into one spreadsheet, and check that inspection records exist and are current. Do not mistake the absence of item registration for the absence of obligation: design traceability and inspection are where Victorian enforcement lands.
If you need a competent person to inspect a fleet of receivers in Victoria, or to assess a vessel whose design registration cannot be traced, CAS connects you with vetted inspection and supply partners. Use the form below to outline what you have and where it is, and we route the enquiry to a supplier who can quote against your actual fleet.
Related reading on CAS: the national pressure vessel registration guide, air receiver tank sizing and selection, the Safe Work Australia compressed air compliance guide, and the compressed air systems hub. Registering in another state? See NSW, Queensland, Western Australia, and South Australia.
Frequently Asked Questions
Does Victoria require pressure vessel item registration?
No. Victoria is the only Australian jurisdiction that does not require item or plant registration of pressure vessels. Under the Occupational Health and Safety Regulations 2017, WorkSafe Victoria requires the design to be registered (hazard level A, B, C or D under AS 4343:2014), but individual tanks built to that registered design are not separately registered. Design traceability and in-service inspection obligations still apply.
Why is Victoria different from the other states?
Victoria regulates plant under its own Occupational Health and Safety Act 2004 and Regulations 2017, not the harmonised Work Health and Safety laws used in NSW, Queensland, WA, and South Australia. The Victorian framework registers plant designs (Schedule 2) but does not operate a separate pressure-vessel item registration scheme.
Does design registration expire in Victoria?
No. Registration of a plant design, and of a design alteration, does not expire. It remains valid for the lifetime of the plant unless the design is altered to an extent that introduces new risk-control measures, in which case the altered design must be registered. A design registered in another Australian state or territory is recognised in Victoria.
How often must an air receiver be inspected in Victoria?
WorkSafe Victoria publishes air-receiver inspection intervals sourced from AS/NZS 3788: receivers with a pV up to 100 MPa.L need regular operating surveillance, while receivers above 100 MPa.L need a commissioning inspection, an external inspection every 2 years, and an internal inspection every 4 years. The published table cites the 2006 edition; a competent person reconciles it against the current AS/NZS 3788:2024 Amd 1:2025 for your specific vessel.
What happens to a Victorian receiver if it moves interstate?
A vessel commissioned in Victoria under design registration only will need an item registration when it moves to a harmonised state such as NSW or Queensland, where item registration applies at hazard level A, B or C. Track the design registration number for every vessel so an interstate move is a paperwork update rather than a retrospective scramble. Moving the other way, into Victoria, no item registration is required.
Related Resources
- Pressure Vessel Registration in Australia: the national overview and state-by-state comparison.
- Air Receiver Tanks Australia: sizing, selection, and AS 1210:2010 design compliance.
- Safe Work Australia Compressed Air Compliance Guide: the framework behind state registration.
- Compressed Air for Manufacturing: AS 1210, AS 4343 hazard levels, and registration on the plant floor.
- All CAS Resources: the full reference library on Australian compressed air standards.
General information disclaimer. The information on this page is general in nature and provided for educational purposes only. It is not engineering, safety, or professional advice, and it does not account for the specifics of your site, equipment, or duty. Compressed air system design, pressure equipment selection, and regulatory compliance must be confirmed with a qualified engineer and the relevant work health and safety regulator before you act. Compressed Air Solutions is a publisher and referral service, not a licensed engineering practice, and accepts no liability for decisions made on the basis of this content. Verify all figures, standards references, and regulatory requirements against current primary sources.