Why No National Boat Sticker Rule Exists
Australia does not issue one national set of hull letters. The number on your boat is allocated when you register with a state marine authority. How that number must look — height, colour, font and where it sits — is written by that same authority. Vinyl cut here is only legal if you match what that office currently publishes.
This page summarises the display rules from government sites only. It is not a substitute for the official wording on the day you launch. Use the state links for our local how-to pages, then confirm the government source before you order.
Each state writes its own marine safety regulations. Registration numbers that is correct on a NSW powerboat can be the wrong height on a Queensland boat, or the wrong colour and outline colour in Western Australia. There was also a time when QLD Boat Regos were at a Mandatory 200mm in height requirement which changed more than 10 years ago.
What are Registration Numbers
Registration numbers are the letters and numbers your marine authority assigns to you when your boat is registered. This is how your boat is identified on the water. Each state in Australia has its own own display rules. Boat Registration Numbers are important especially during an emergency situation where your boat can be easily found on the water during an emergency and even if there is a Boating Accident.
Registration Number Display Requirements by state
Figures below are taken from the government pages linked in each state section. Vessel type, hull length and whether the boat can plane all change the result. Always open the official page for your class of craft.
- Placement:
| Registering state | Typical powered-boat character height | Placement | Boat Rego Colour | Personal watercraft | Annual registration label on the hull | Authority |
|---|---|---|---|---|---|---|
| NSW | At least 150 mm (powerboats) | Both sides; sailing boats may use the transom. Well above the normal waterline. | Solid, clear characters that contrast with the hull. Uppercase letters and numerals. | At least 100 mm | No longer required | Transport for NSW |
| Queensland | At least 150 mm if capable of planning; otherwise at least 75 mm | Planing boats — both sides. Other boats — both sides or the stern. PWC — both sides. Must be readable from 30 m. | High Contrast | At least 100 mm | No longer issued | Maritime Safety Queensland |
| Victoria | At least 150 mm | Both sides, forward of midships (VicRoads: forward of the beam). Keep the top of the characters close to the gunwale. | Contrast colour to hull. | At least 100 mm | Still required | Maritime Safety Victoria |
| Western Australia | At least 150 mm high × 25 mm wide | Motor boats — both sides, clearly visible, not under the bow flare. Sailing craft and tenders — both sides, just forward of the transom. | Black, plain block, upright (not slanted). If the hull is not white, 7 mm white surround around each character. | See WA section (confirm on Transport WA) | Required on the port side, next to the number | Department of Transport WA |
| South Australia | At least 150 mm if the vessel is 3 m or longer | Both sides, towards the bow, on a vertical surface. Highly flared bows need written approval for another spot. | Contrasting colour to the surface the numbers sit on. | At least 100 mm if the vessel is under 3 m | No longer required (from 1 September 2023) | Department for Infrastructure and Transport |
| Tasmania | 150 mm on each side | Each side of the vessel (MAST does not say “forward half”). | See MAST page. | May be 75 mm | Capacity label / PWC safe-operation sticker as MAST requires |
New South Wales Boat Registration Rules
Transport for NSW states that every registered vessel must show its registration number. Display it on both sides of the vessel, or on the transom if it is a sailing boat. The characters must be solid and clear, in a colour that contrasts with the hull, in numerals and uppercase letters, and well above the normal waterline so they can be seen at all times. Powerboats need a minimum 150 mm height. Sailing boats and personal watercraft need a minimum 100 mm. NSW no longer requires a physical registration label on the hull. Powered vessels (other than sailing boats with an engine, and PWC) still need the safety label where people on board can see it. PWC must carry the PWC behaviour label.
Our notes for NSW boats: NSW boat registration requirements. Official: What to display on your vessel (NSW Government).
Queensland Boat Registration Rules
Queensland requires boats (including PWC) with an engine of 3 kW or more to be registered on the water. qld.gov.au says the allocated numbers must be readable from 30 m and in a contrasting colour to the hull. Size depends on the boat: craft capable of planning need at least 150 mm high on both sides; craft not capable of planning need at least 75 mm high on both sides or the stern; PWC need at least 100 mm high on both sides. Registration labels are no longer issued. A tender that is exempt from its own registration must still be marked on the exterior with the word “tender” and the parent ship’s numbers, in characters at least 75 mm high, unless that is not possible.
Our notes for Queensland boats: Queensland boat registration requirements. Official: Register a boat (qld.gov.au).
Victoria Boat Registration Rules
Safe Transport Victoria requires powered recreational vessels in Victorian waters to be registered with VicRoads. The owner must keep the registration label fixed in an obvious position on the outside or upper part of the vessel. The identification mark must be on both sides of the hull, forward of midships, at least 150 mm high, in a contrasting colour. PWC characters may be 100 mm high, still in contrast to the hull. Electronic foils (e-foils) must display the registration label in a contrasting colour with a minimum 80 mm height. VicRoads also describes placing the number on each side of the hull, forward of the beam, with the highest part of each digit no more than 75 mm below the gunwale (25 mm for PWC), in proportionate breadth.
Our notes for Victorian boats: Victoria boat registration requirements. Official: Licensing and registration (Safe Transport Victoria) and Register a vessel (VicRoads).
Western Australia Boat Registration Rules
Transport WA requires the annual registration sticker on the port (left) side, next to the registration number. Each digit must be black, a plain block font, vertically positioned (not slanting) and clearly visible. If the hull is not white, each digit should have a minimum white surround of 7 mm. On the current Register a vessel page, motor boats need characters at least 150 mm tall and 25 mm wide on both sides where they are clearly visible. Sailing vessels fitted for motors, and tenders showing the parent number, need at least 50 mm tall and 12 mm wide, immediately forward of the transom. That same page currently lists personal watercraft at least 150 mm tall and 25 mm wide, on both sides or midships, not under the flare of the bow. WA also publishes a vessel-registration safety guidelines PDF with extra placement notes (including midships and gunwale clearance). Check both the live Transport WA page and that PDF before you cut PWC or a dark hull.
Our notes for WA boats: WA boat registration requirements. Official: Register a vessel (Transport WA) and How to display your boat registration sticker and numbers (WA Government).
South Australia Boat Registration Rules
SA.GOV.AU requires the registration number to be marked on the vessel before it is operated. Paint or display it on both sides, towards the bow, on a vertical surface, in a colour that contrasts with that surface. Vessels 3 m or longer need characters at least 150 mm high and clearly legible from 50 m while underway in clear weather. Vessels under 3 m need at least 100 mm high, still legible from 50 m underway in clear weather. If the bow is highly flared and the number cannot sit correctly, SA asks you to email dit.marinesafety@sa.gov.au for approval of another position. Service SA states that from 1 September 2023 boat registration labels no longer need to be displayed; you still receive a registration certificate.
Our notes for South Australian boats: South Australia boat registration requirements. Official: Boat registration numbers and certificates (SA.GOV.AU) and Boat registration labels no longer required (Service SA).
Tasmania Boat Registration Rules
Marine and Safety Tasmania (MAST) requires registration for recreational boats with a motor of 4 hp or more, and for personal watercraft. After a successful application MAST issues a unique number that must be 150 mm high and displayed on each side of the vessel. PWC numbers may be 75 mm. If the vessel has no Australian Builders Plate, a capacity label must also be displayed (not required on a PWC). A PWC must have a Safe Operation Sticker. Tenders not exceeding 4.5 m and used within 0.5 nautical miles of the larger vessel need only carry the larger vessel’s registration number. Valid interstate registration is recognised until the vessel has been in Tasmanian waters for a continuous three months.
Our notes for Tasmanian boats: Tasmanian boat registration requirements. Official: How to register a boat or PWC (MAST).
ACT lakes and the Northern Territory Boat Registration Rules
These two territories do not publish their own hull-letter size charts, for different reasons. They are relevant if you boat there, but you do not order an “ACT set” or an “NT set” from a local numbering scheme.
Australian Capital Territory
Access Canberra states that the ACT Government does not have a boat licence or registration scheme. Power boats on ACT lakes must still be registered with another Australian state or territory, and you must hold a boat licence from another state or territory unless the boat is exempt. You must comply in the ACT with any condition or restriction of that registration — including how the numbers are displayed. Order lettering to the rules of the state that issued the number (usually NSW for Canberra-region boats), not a separate ACT specification.
Official: Boating on ACT lakes and Googong Reservoir (Access Canberra).
Northern Territory
NT.GOV.AU states that recreational boats in the Northern Territory do not need registration, and you do not need a licence to operate them. There is therefore no NT recreational hull-number display rule to match. Safety equipment and marine rules still apply. If you later use the same boat in a registering state, that state’s display rules apply from the day you operate there.
Official: New to recreational boating (NT.GOV.AU) and Safety guide for recreational boating (NT.GOV.AU).
What we cut, and what you confirm before you order
Boat Stickers Shop cuts marine vinyl to the height, colour and font you select. We do not register boats. A sticker is not automatically legal because it was bought online. You choose the size and colour to match your vessel type and the current page from your registering authority, then apply the pair where that page says.
- Confirm the registering state (or, in the ACT, the state that issued the registration).
- Note the minimum height for your vessel type — powerboat, PWC, yacht, tender or e-foil.
- Check contrast on the actual hull colour, including two-tone paint and WA’s 7 mm white surround where it applies.
- Plan both sides (or the transom, if that is what your authority allows), above the loaded waterline, clear of fittings.
- Order a matching pair so port and starboard stay identical.
If you are replacing faded numbers, copy the height that already complied only if the official rule has not changed. If you have moved states, start from the new authority’s page. Keep the registration certificate with the boat. Design your own regos with our boat registration stickers designer when the height and colour are confirmed, or call if you want the pair checked against the government notes before it is vinyl cut. For PWC you can order your your rego stickers by visiting the jetski stickers designer.
Boat Rego Sticker Application steps can be found at our how to apply boat stickers page.
