Riddle Boat Works — HIN at a glance
| Manufacturer | Riddle Boat Works |
|---|---|
| Also known as | Ram Industries (Oob) |
| City | Kailua-Kona |
| State | Hawaii |
| Country | United States |
| MIC code | RID |
| HIN format | USCG (12 characters) |
| Status | Active |
| Boat types | Open motorboat, Personal watercraft (jet ski), Houseboat |
Decode a Riddle Boat Works HIN
Paste any HIN starting with RID — we'll decode the serial number, build month, build year and model year instantly.
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About the USCG HIN format
Riddle Boat Works is registered with the US Coast Guard and stamps a standard 12-character Hull Identification Number on every vessel produced for the US market. The format breaks down as:
RID NNNNN M Y YY └┬┘ └──┬──┘ │ │ └┬┘ │ │ │ │ └─ Model year (last two digits) │ │ │ └──── Production year (last digit, 1972 standard) │ │ └────── Production month (A=Jan, B=Feb ... L=Dec, skipping I) │ └──────────── Hull serial number (alphanumeric) └─────────────── MIC: Manufacturer Identifier Code (RID)
Federal regulation 33 CFR § 181 requires every US-built or imported recreational vessel to display this HIN permanently on the upper starboard side of the transom, and a duplicate HIN in a hidden location inside the hull.
Other Hawaii boat manufacturers
- Akamai Designs INC (
AKD) - Force Marine INC (
FQV) - Hawaiian Marine (
HAI) - Hawaii Homemade Boats (
HAZ) - Hawaiian Catamaran Multihull Design (
HCM) - Hoku Boats LLC (
HOK) - Kamanu Composites LLC (
KMN) - Lightnin Fiberglass (
LGH) - Lightnin Fiberglass (
LHG) - North Shore Marine LTD (
NTH) - Navatek, LTD (
NVL) - Outrigger Zone LLC (
ORS)
Frequently asked questions
What is the MIC code for Riddle Boat Works?
Riddle Boat Works is assigned USCG Manufacturer Identifier Code (MIC) RID. All Riddle Boat Works boat HINs begin with these three characters.
How long is a Riddle Boat Works HIN?
Riddle Boat Works uses the US HIN format: 12 characters total. The first 3 are the MIC, followed by 5 serial-number characters, 1-letter month, 1-digit year, and 2-digit model year.
Is Riddle Boat Works still in business?
Riddle Boat Works is currently listed as active in the US Coast Guard MIC database (last published October 2019). Even out-of-business manufacturers' HINs remain valid identifiers for the boats they built.