You provided labor, parts, repairs, fuel, or supplies to a USCG documented vessel and the owner hasn’t paid. Filing a Notice of Claim of Lien (NCL) is the official way to protect your financial interest and put the world on notice that you have a claim against the vessel.
Many mechanics, contractors, suppliers, and marine service providers immediately turn to paid vessel documentation companies (Mary Conlin, New England Marine Documentation, International Vessel Documentation, etc.) and pay $300–$600+ for something you can do yourself on the NVDC eStorefront for just the $8 per page recording fee.
In this complete guide, we’ll cover exactly what a Notice of Claim of Lien is, the strict requirements from the latest NVDC instructions (revised 09/2025), the simple eStorefront filing process, required wording and declaration, common mistakes, and a ready-to-use AI prompt that generates a customized NCL document for you.
This continues our popular series showing how USCG Doc AI helps boat owners and marine professionals skip expensive third-party filing services.
What Is a Notice of Claim of Lien (NCL)?
A Notice of Claim of Lien is a public filing with the National Vessel Documentation Center (NVDC) that records your claim for unpaid amounts related to the vessel. It does not guarantee your lien is valid or enforceable — that’s a legal question best answered by a maritime attorney — but it does put potential buyers, lenders, and other parties on notice.
Important: You can only file an NCL against a vessel that is currently documented with the USCG or has a pending Application for Documentation.
Who Typically Files an NCL?
- Boat repair yards and mechanics
- Marine suppliers and parts providers
- Contractors who performed work on the vessel
- Fuel providers or other service companies
Key Requirements from Official NVDC Instructions (09/2025)
There is no official OMB-approved form. You must create your own document that meets these minimum requirements:
- Recite clearly:
- Vessel name
- Official number
- Name and address of each claimant (you or your company)
- Nature of the lien claimed (e.g., “unpaid repairs and labor for engine overhaul”)
- Date on which the lien was established
- Total amount of the lien claimed
- Be signed by or on behalf of each claimant, with date of execution.
- Contain a proper notary acknowledgment.
- Include a specific declaration stating:
- The information in the notice is true and correct to the best of the signer’s knowledge, information, and belief.
- A copy of the notice has been sent to:
- The owner of the vessel
- Any other parties who have recorded an unexpired Notice of Claim of Lien
- The mortgagee of each undischarged Preferred Ship Mortgage
- Be accompanied by the filing fee: $8.00 per page (double-sided pages count as two).
Best Practice Tip: Before filing, send copies of your intended Notice to the owner, any existing lien holders, and mortgagees (you can request an Abstract of Title first to identify them).
Step-by-Step: How to File on the NVDC eStorefront
- Log into (or create) your eStorefront account Go to: https://www.nvdc-estorefront.uscg.mil/vds-estorefront/
- Select the filing option Choose “File a Notice of Claim of Lien” or the general “I need to File an Instrument” path.
- Enter vessel details Provide the vessel name and official number.
- Prepare your document as a clean PDF Create the Notice of Claim of Lien including all required elements above.
- Upload the PDF The system will guide you through any additional fields.
- Pay the $8 per page fee and submit.
You’ll receive confirmation, and once processed, a recorded version is returned electronically.
Sample Wording / Template Structure
Notice of Claim of Lien
Vessel Name: [Vessel Name] Official Number: [Official #]
Claimant: [Your Full Name or Company Name] Address: [Full Mailing Address]
Nature of Lien Claimed: [Detailed description, e.g., “Unpaid invoice for haul-out, bottom paint, and mechanical repairs performed between MM/DD/YYYY and MM/DD/YYYY”]
Date Lien Established: [MM/DD/YYYY]
Total Amount of Lien Claimed: $[Amount]
[Signed] [Printed Name] [Date]
Declaration I declare that the information contained in this Notice of Claim of Lien is true and correct to the best of my knowledge, information, and belief. A copy of this notice has been sent to the owner of the vessel, to each person who has recorded an unexpired notice of a claim of an undischarged lien on the vessel, and to the mortgagee of each undischarged mortgage filed or recorded under 46 U.S.C. §31321.
[Signed] [Date]
Follow with notary acknowledgment block.
Common Mistakes That Cause Rejection
- Missing the vessel’s official number
- Vague description of the “nature of the lien”
- No notary acknowledgment
- Missing or incomplete declaration about sending copies
- Forgetting the $8 per page fee
- Not sending advance copies to the owner and mortgagees
Your Ready-to-Use AI Prompt (Copy & Paste)
Copy this prompt into Grok, ChatGPT, or any AI:
“Help me file a Notice of Claim of Lien (NCL) on a USCG documented vessel through the NVDC eStorefront. Provide the complete requirements from the latest NVDC instructions, exact wording and structure for the document (including vessel name, official number, claimant details, nature of lien, date, amount, signature, and the mandatory declaration about sending copies to owner, other lien holders, and mortgagees), notary requirements, and upload checklist. Ask for my specific details (vessel name, official number, claimant info, description of work/claim, amount, date lien arose, and any known mortgage/lien info), then generate a full customized Notice of Claim of Lien template I can use.”
Pro Tips for Success
- Strongly consider getting an Abstract of Title first ($75 via eStorefront) so you know exactly who the current owner and mortgagees are.
- Keep detailed records and invoices supporting your claim — these may be needed later if you have to enforce the lien in court.
- Filing the NCL does not automatically give you the right to arrest the vessel; enforcement usually requires legal action.
- Later, if the debt is paid, you (or the owner) can file a Satisfaction of Claim of Lien using our dedicated Satisfaction/Release prompt.
Why Pay a Third-Party Service When You Can Do This Yourself?
Paid documentation companies will prepare and file your NCL for a significant markup. Yet the process is straightforward on the free eStorefront, and our Notice of Claim of Lien AI Prompt handles the tricky wording and declaration for you.
This is the same money-saving approach we highlight in all our comparison posts (USCG Doc AI vs Mary Conlin, vs New England Marine Documentation, etc.).
Next Steps
- Run the AI prompt above with your specific claim details.
- Prepare and notarize your document.
- Log into the eStorefront and file it today.
Need help with related processes?
Browse our full library of USCG AI Prompts here
Protect your hard-earned money the smart way — file your Notice of Claim of Lien (NCL) yourself with the official eStorefront and USCG Doc AI.
Want to Download all of our prompts and the USCG forms needed to save time? Download our prompts and the USCG forms HERE!
