Assigned number format
South Carolina assigns numbers in the pattern SC 3717 ZW, using the SC prefix. The registration structure changed with the South Carolina annual-registration system.
State Requirement Summary
South Carolina Boat Registration Number Requirements
South Carolina numbers follow the SC 3717 ZW pattern and are displayed on both sides of the bow in block letters at least three inches tall, contrasting with the hull, with no other numbers in that bow area. Because South Carolina moved to an annual registration system, the decal you receive with your renewal is the authority on placement — we don't infer an offset, and we supply the registration lettering only.
Boat number requirements
Last regulatory review: August 22, 2026
Assigned number example
SC 3717 ZW
- Minimum character height
- 3 inches
- Lettering style
- Block letters
- Contrast
- Must contrast with background
- Spacing / separator
- Space or hyphen
- Reading direction
- Left to right
- Number location
- Both sides of the bow / forward half
- Validation decal
- Follow the current SCDNR decal placement instructions; we do not infer an offset
- State agency
- South Carolina Department of Natural Resources
What we sell vs. what the state issues: RegistrationDecals.com supplies the registration-number lettering, designed to meet the displayed South Carolina size and formatting requirements. South Carolina Department of Natural Resources issues the official validation/expiration decal — and any separate stickers such as aquatic-invasive-species, mussel-awareness, carbon-monoxide or lake-protection stickers, which are not interchangeable with each other.
Design your SC numbers
Starts with the South Carolina format (SC 3717 ZW). Tap the decal and type your own assigned number exactly as it appears on your certificate of number.
Tap the decal to edit
Decal color
We supply the registration-number lettering, sized to the displayed South Carolina requirements. South Carolina Department of Natural Resources issues the validation decal.
South Carolina placement diagram
Both sides of the hull carry the number. The grey square marks where the state-issued validation decal goes — follow the current scdnr decal placement instructions; we do not infer an offset.
- Height: 3 inches, block letters
- Spacing: Space or hyphen
- Location: Both sides of the bow / forward half
- Validation decal: Follow the current SCDNR decal placement instructions; we do not infer an offset
Diagram is illustrative. Confirm exact positioning against the instructions issued with your South Carolina registration.
Official source
South Carolina Department of Natural Resources — Primary state agency source. Last verified August 22, 2026 (source check 2026-08-22).
South Carolina DNR — BoatingRegistration requirements can change. RegistrationDecals.com summarizes publicly available boating-registration requirements to help boat owners select and display registration numbers. Always compare your registration and decals with the current instructions issued by your state boating or registration agency before applying them to your vessel.
South Carolina rules in detail
Minimum character height
South Carolina specifies characters 3 inches high. Measure the character body itself — if the state excludes borders, outlines or shading, decorative trim does not count toward the minimum.
Required lettering style
Block letters, reading left to right. Script, italic and decorative treatments are not what this style describes.
Contrast requirement
Must contrast with background. In practice that means dark characters on a light hull and light characters on a dark hull, checked in daylight from the side of the vessel.
Spacing and separator
Space or hyphen. Example: SC 3717 ZW. Running the groups together with no separation does not match the stated format.
Placement on the hull
Both sides of the bow / forward half. No other numbers on the bow.
Validation decal placement
Follow the current SCDNR decal placement instructions; we do not infer an offset. The validation or expiration decal is issued by South Carolina Department of Natural Resources — RegistrationDecals.com supplies the registration-number lettering only.
Common mistakes
- Ordering the number without the SC prefix or the suffix letters.
- Characters shorter than the stated minimum (3 inches) so they fit inside a narrow accent stripe.
- Using a script, italic or shadowed style instead of block letters.
- Losing the required separation between the groups — space or hyphen.
- Placing the state validation decal somewhere other than the position South Carolina describes: follow the current SCDNR decal placement instructions; we do not infer an offset.
Frequently asked questions
What does a South Carolina boat registration number look like?
South Carolina numbers follow the pattern SC 3717 ZW, using the SC prefix, a numeral group, and suffix letters.
How tall do South Carolina boat registration numbers have to be?
3 inches, measured on the character itself, in block letters.
What lettering style does South Carolina require?
Block letters, reading left to right, and must contrast with background.
How much space goes between the letters and numbers in South Carolina?
Space or hyphen. Example: SC 3717 ZW.
Where do the numbers go on the boat in South Carolina?
Both sides of the bow / forward half. No other numbers on the bow.
Where does the South Carolina validation decal go?
Follow the current SCDNR decal placement instructions; we do not infer an offset. The decal itself is issued by South Carolina Department of Natural Resources; we supply the registration-number lettering.
Who regulates boat registration numbers in South Carolina?
South Carolina Department of Natural Resources. Confirm the current instructions issued with your registration before applying anything to your hull. Last regulatory review: August 22, 2026.
Can I order South Carolina boat registration numbers online?
Yes. Enter your assigned SC number in the designer on this page, pick a color that contrasts with your hull, and we cut a matched port-and-starboard pair and ship it to the 48 contiguous states.
Do I need two sets of South Carolina registration numbers?
You need the number displayed on both sides of the vessel — both sides of the bow / forward half — so every order ships as a matched port-and-starboard pair.
Where does the SCDNR validation decal go?
Follow the placement instructions issued with your current South Carolina registration. SCDNR issues the decal; we supply the registration-number lettering.
Related guides
Ready to design your SC numbers?
Our designer starts with plain block characters and proper group spacing, so you can see exactly how SC 3717 ZW will read on your hull before you order.
Source: South Carolina Department of Natural Resources · Primary state agency source · Primary program source; display formatting cross-checked · Source last checked 2026-08-22.
Registration requirements can change. RegistrationDecals.com summarizes publicly available boating-registration requirements to help boat owners select and display registration numbers. Always compare your registration and decals with the current instructions issued by your state boating or registration agency before applying them to your vessel.