Alabama Boat Registration Numbers: AL Prefix, Legal 3-Inch Block
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Legal 3-inch block numbers starting with AL, cut from marine vinyl, pre-spaced on one sheet for each side of the hull. Free shipping, shipped the next business day.
Alabama in Birmingham iron and molten ore
2.1% of every registered boat in the country is in Alabama. Registration counts from the US Coast Guard, Recreational Boating Statistics 2024, Table 38, 2024 figures. Source.
What a Alabama number looks like
A Alabama registration number is built from three parts: the state prefix AL, a block of digits, and a letter suffix. Written out with the spacing the law requires, it looks like AL 1234 AB.
The federal rule, in full. Under 33 CFR 173.27, a registration number must:
- be painted on or permanently attached to each side of the forward half of the vessel;
- be in plain vertical block characters of not less than 3 inches in height;
- contrast with the colour of the background and be distinctly visible and legible;
- have spaces or hyphens between the letter and number groupings equal to the width of a letter other than “I” or a number other than “1” — so TX 1234 AB, not TX1234AB;
- read from left to right.
Getting the number in the first place
Register the boat through the Alabama Law Enforcement Agency, Marine Patrol first. That is where the number and the validation decal come from. We are a vinyl shop, not a registry — we cannot look your number up or issue one, so order once you have the certificate in hand and copy the line straight off it.
The rule most people miss is contrast. There is no required colour — but white numbers on a white hull are not “distinctly visible and legible,” and that is a failed inspection. Dark hull, light numbers. Light hull, dark numbers. Our order form flags the combination before it gets cut.
Ordering for a Alabama boat
Type the number as it appears on your card, pick a colour that contrasts with your hull, and leave the height at 3 inches unless you want it bolder. You will see your exact lettering in the preview before you pay — that is what gets cut.
Where people boat in Alabama
Alabama has more navigable inland waterway than almost any other state, most of it the dammed Tennessee and Coosa rivers, plus the Gulf at the bottom.
- Lake Guntersville69,000 acres, the largest lake in Alabama, and one of the best-known bass fisheries in the country.
- Lewis Smith Lake21,000 acres, deep and clear, with 500 miles of shoreline in the Bankhead forest.
- Wheeler and Wilson Lakesthe Tennessee River chain across the north of the state.
- Lay, Logan Martin and Neely Henrythe Coosa River chain through the middle - the weekend water for Birmingham.
- Mobile Bay and the Deltathe second largest river delta system in the country behind the Mississippi.
- Gulf Shores and Orange Beachthe offshore fleet, and one of the largest artificial reef zones in the Gulf.
The season. Effectively year round, with the hard season March through November.
What has to be registered in Alabama
Alabama registers: all motorized vessels, sailboats, and boats for hire.
That is the Coast Guard’s own summary of the Alabama Law Enforcement Agency, Marine Patrol system. It matters because it decides whether you need a number on the bow at all — the answer for a kayak or a canoe is different in nearly every state, and a boat that does not need registering does not need numbers from us either. If you are not required to register it, we would rather tell you that than sell you a set.
Ready to order?
$19 a pair, free shipping, cut and shipped the next business day. The preview shows your exact lettering before you pay.
Alabama questions
How tall do Alabama boat registration numbers have to be?
Not less than 3 inches, in plain vertical block characters. That is the federal minimum under 33 CFR 173.27 and it applies in Alabama like everywhere else. Taller is always legal.
What do Alabama boat numbers start with?
AL. Your full number runs prefix, digits, then a letter suffix — for example AL 1234 AB. Copy it off your registration card exactly rather than guessing the spacing.
Who issues boat registration in Alabama?
You register through the Alabama Law Enforcement Agency, Marine Patrol. We only make the decals — you get the number from them first, then we cut it.
Do the numbers need a space or a hyphen?
Yes. The rule requires a space or hyphen between the letter and number groups, about as wide as one character. So AL 1234 AB, not AL1234AB. Ours arrive pre-spaced correctly, so you cannot get this wrong.
Where do they go on the boat?
Each side of the forward half of the hull, reading left to right, in a colour that contrasts with the hull. The validation decal goes near the number — Alabama publishes the exact offset, and it is usually within a few inches.
Do I have to register a kayak or canoe in Alabama?
Alabama registers all motorized vessels, sailboats, and boats for hire. If your boat falls outside that, it does not need a registration number on the bow — and it does not need a set from us either. This is the Coast Guard's own summary of the Alabama Law Enforcement Agency, Marine Patrol system.
How many registered boats are there in Alabama?
247,730, which puts Alabama 15th in the country. That is the Coast Guard's 2024 count, from Recreational Boating Statistics, Table 38.
Where are the best places to boat in Alabama?
Lake Guntersville is the one most people name first: 69,000 acres, the largest lake in Alabama, and one of the best-known bass fisheries in the country. Others worth knowing: Lewis Smith Lake, Wheeler and Wilson Lakes, Lay, Logan Martin and Neely Henry, Mobile Bay and the Delta.
When is boating season in Alabama?
Effectively year round, with the hard season March through November.