Assigned number format
New Hampshire assigns numbers in the pattern NH 1234 AB, using the NH prefix. New Hampshire revised its vessel/decal rules recently — check the review date on this page.
State Requirement Summary
New Hampshire Boat Registration Number Requirements
Boats registered in New Hampshire display an NH-prefixed number such as NH 1234 AB. New Hampshire calls for characters 3 inches high in block letters, reading left to right, contrasting color, positioned each side of the forward half. Our lettering is designed to meet the displayed New Hampshire size and formatting requirements. The state itself issues the validation/expiration decal — we supply the registration-number lettering.
Boat number requirements
Last regulatory review: August 22, 2026
Assigned number example
NH 1234 AB
- Minimum character height
- 3 inches
- Lettering style
- Block letters
- Contrast
- Contrasting color
- Spacing / separator
- Space or hyphen
- Reading direction
- Left to right
- Number location
- Each side of the forward half
- Validation decal
- Follow the current NH DMV registration-decal instructions
- State agency
- New Hampshire Division of Motor Vehicles / General Court
What we sell vs. what the state issues: RegistrationDecals.com supplies the registration-number lettering, designed to meet the displayed New Hampshire size and formatting requirements. New Hampshire Division of Motor Vehicles / General Court 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 NH numbers
Starts with the New Hampshire format (NH 1234 AB). 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 New Hampshire requirements. New Hampshire Division of Motor Vehicles / General Court issues the validation decal.
New Hampshire placement diagram
Both sides of the hull carry the number. The grey square marks where the state-issued validation decal goes — follow the current nh dmv registration-decal instructions.
- Height: 3 inches, block letters
- Spacing: Space or hyphen
- Location: Each side of the forward half
- Validation decal: Follow the current NH DMV registration-decal instructions
Diagram is illustrative. Confirm exact positioning against the instructions issued with your New Hampshire registration.
Official source
New Hampshire Division of Motor Vehicles / General Court — Primary state law or administrative code. Last verified August 22, 2026 (source check 2026-08-22).
New Hampshire DMV — Boat registrationsRegistration 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.
New Hampshire rules in detail
Minimum character height
New Hampshire 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
Contrasting color. 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: NH 1234 AB. Running the groups together with no separation does not match the stated format.
Placement on the hull
Each side of the forward half. No other numbers on the forward half.
Validation decal placement
Follow the current NH DMV registration-decal instructions. The validation or expiration decal is issued by New Hampshire Division of Motor Vehicles / General Court — RegistrationDecals.com supplies the registration-number lettering only.
Common mistakes
- Ordering the number without the NH 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 New Hampshire describes: follow the current NH DMV registration-decal instructions.
Frequently asked questions
What does a New Hampshire boat registration number look like?
New Hampshire numbers follow the pattern NH 1234 AB, using the NH prefix, a numeral group, and suffix letters.
How tall do New Hampshire boat registration numbers have to be?
3 inches, measured on the character itself, in block letters.
What lettering style does New Hampshire require?
Block letters, reading left to right, and contrasting color.
How much space goes between the letters and numbers in New Hampshire?
Space or hyphen. Example: NH 1234 AB.
Where do the numbers go on the boat in New Hampshire?
Each side of the forward half. No other numbers on the forward half.
Where does the New Hampshire validation decal go?
Follow the current NH DMV registration-decal instructions. The decal itself is issued by New Hampshire Division of Motor Vehicles / General Court; we supply the registration-number lettering.
Who regulates boat registration numbers in New Hampshire?
New Hampshire Division of Motor Vehicles / General Court. Confirm the current instructions issued with your registration before applying anything to your hull. Last regulatory review: August 22, 2026.
Can I order New Hampshire boat registration numbers online?
Yes. Enter your assigned NH 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 New Hampshire registration numbers?
You need the number displayed on both sides of the vessel — each side of the forward half — so every order ships as a matched port-and-starboard pair.
Related guides
Ready to design your NH numbers?
Our designer starts with plain block characters and proper group spacing, so you can see exactly how NH 1234 AB will read on your hull before you order.
Source: New Hampshire Division of Motor Vehicles / General Court · Primary state law or administrative code · Primary · 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.