---
title: How to Locate and Read a Hull Identification Number on Your Boat
description: The Hull Identification Number (HIN) is a unique 12-digit serial number assigned to every boat built or imported since 1972. You can find it...
image: https://21118949.fs1.hubspotusercontent-na1.net/hubfs/21118949/courses/usa2024/images/images-transparentes/hull-identification-number-usa-black.png
---

![Hull identification number](https://21118949.fs1.hubspotusercontent-na1.net/hub/21118949/hubfs/courses/usa2024/images/images-transparentes/hull-identification-number-usa-black.png?width=1100&height=1024&name=hull-identification-number-usa-black.png)

### **Where Can I Find a Hull Identification Number (HIN)?**

The Hull Identification Number (HIN) is a unique 12-digit serial number assigned to every boat built or imported since 1972. You can find it permanently affixed to the **transom (rear) of the boat**, specifically on the **starboard side above the waterline**. This ensures the number remains visible even when the boat is in the water.

### **Is a Hull Number the Same as a Serial Number?**

Yes. The HIN serves as the **boat’s serial number** and is assigned by the manufacturer. It functions much like a Vehicle Identification Number (VIN) on a car—uniquely identifying your vessel. The HIN is required for **titling, registration, and insurance**, and it’s essential to **record and store it safely**. In the event of loss or theft, authorities can use the HIN to help identify and recover your boat.

### **How Many Digits Are in a Hull Identification Number?**

A valid HIN contains **12 characters**—a mix of letters and numbers. These digits include codes that identify the **manufacturer**, **production sequence**, and **model year** of the boat.

### **What If Your Boat Doesn’t Have a HIN?**

If your boat is missing a Hull Identification Number, you should **contact the manufacturer, importer, or local boating authority** to obtain one. In some states, a **clear photograph or verification process** may be accepted to confirm ownership, but requirements vary. Always **check your state or provincial regulations**, as rules differ across jurisdictions.

## What does a HIN look like?

The HIN number willl also be permanently attached in a second unexposed (hidden) location.

![What does a HIN look like?](https://21118949.fs1.hubspotusercontent-na1.net/hub/21118949/hubfs/hin-usa.jpg?width=1000&height=563&name=hin-usa.jpg)

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