CBP Form 301A – Addendum to Form 301

Jurisdiction: Country: USA | Province or State: Federal

What is a CBP Form 301A – Addendum to Form 301?

CBP Form 301A is an addendum to a CBP customs bond. It supplements CBP Form 301, which creates the bond. Think of it as the “extra pages” to your bond. You use it when the bond needs more detail than the main form can hold.

The addendum serves two core jobs. First, it lets you list extra parties, identifiers, or facilities covered by the bond. Second, it lets you spell out coverage details that do not fit on Form 301. You do not use it alone. It must tie to a specific Form 301 bond.

Who typically uses this form?

Importers of record use it often. So do bonded warehouse proprietors, foreign-trade zone (FTZ) operators, carriers, and container stations. Drawback claimants and cartmen or lightermen may use it too. Customs brokers often prepare it on behalf of their clients. Sureties and their agents also prepare and sign it.

Why would you need this form?

You need it if your bond has more data than the 301 can hold. Common reasons include extra company names. Or multiple importer numbers under one continuous bond. Or coverage of several sites, zones, or facilities. Or a single transaction bond that needs an entry schedule or special details.

Typical usage scenarios

• You run an import business under several DBAs. The addendum lists each DBA under your continuous bond. That ensures CBP ties entries to the right legal bond.

• You have several importer of record numbers. The addendum lists each number so the bond covers all.

• You operate a bonded warehouse and an FTZ. The addendum identifies both operations and their locations. It shows the activity codes covered and the limits tied to each.

• You need to attach conditions that fit CBP rules but will not fit on the 301. The addendum presents those conditions clearly.

• Your single transaction bond supports more than one entry. The addendum lists each entry number and amount. That helps CBP match entries and bond coverage.

The addendum does not change the nature of the bond. It clarifies who and what the bond covers. It also improves accuracy during filing and enforcement. CBP treats it as part of the bond once accepted.

When Would You Use a CBP Form 301A – Addendum to Form 301?

Use the addendum when the base bond form cannot hold all the required data. For importers, this often happens with continuous bonds. You might have several related entities importing under one umbrella. The addendum lets you list each legal name, DBA, or unincorporated division. You can also list related importer numbers.

Consider an importer with multiple brands. The holding company is the principal on the bond. Each brand imports under a variant of the name. The addendum links those trade names to the main principal. It avoids confusion during entry processing.

If you operate a bonded facility, you likely use the addendum. Bonded warehouse and FTZ operators often need to list sites, zone numbers, or facility addresses. The addendum captures those details. It supports Activity Code 2 (custodians of bonded merchandise) and FTZ conditions tied to your bond type. It helps CBP verify the scope of your bond when you move or store goods.

Carriers and container stations face similar needs. They may need to list terminals, depots, or operating subsidiaries. The addendum gives CBP a clear map of coverage. That reduces holds and questions on arrivals or transfers.

Drawback claimants also use the addendum. You might need to list drawback claim types or related identifiers. The addendum attaches those to your Activity Code 21 bond. It supports faster claim matching.

A single transaction bond can also need an addendum. For example, one shipment splits across multiple entries. The addendum lists each entry number, port, and amount. Or you might need to identify special circumstances. The addendum lays out the data in a way CBP can match.

You may also use the addendum when amending bond coverage. For example, you add a new DBA or facility under a continuous bond. You and the surety prepare an addendum. You identify the bond number and the effective date. You list the new name or location. The addendum links it to the original bond terms. CBP then accepts it as part of the record.

In short, use the addendum when you need more lines or more clarity. It helps CBP see who is covered, where, and under what activity.

Legal Characteristics of the CBP Form 301A – Addendum to Form 301

The addendum is legally binding when it is executed with the bond and accepted by CBP. It forms part of the overall bond contract among you, your surety, and the government. The bond sets your obligations under customs law. The addendum does not replace them. It documents the details that support those obligations.

What ensures enforceability?

Three things matter. First, the addendum must tie to a valid CBP Form 301 bond. It should reference the bond number and principal name. Second, authorized parties must sign. That means the principal or an authorized officer, and the surety’s attorney-in-fact. The surety’s power of attorney must be valid and on file. Third, CBP must accept the bond package. Once CBP accepts it, the addendum is part of the bond record.

The addendum cannot reduce mandatory conditions. Customs bond terms come from regulations and standard conditions. You cannot use the addendum to limit statutory liability. CBP will not accept language that conflicts with required conditions. You can add detail that clarifies scope or lists covered parties or facilities. You cannot write out obligations that the law imposes.

The addendum can increase clarity and reduce dispute risk. Clear identification of principals, DBAs, numbers, and sites helps CBP match your transactions. It also reduces the chance of a claim tied to a misidentified entry. If a claim occurs, the addendum helps show who the bond covers. It also supports the surety’s assessment of risk.

If you amend coverage later, the addendum functions like a rider. It adds new elements to the bond record. If the surety signs and CBP accepts it, it applies from the effective date stated. Keep in mind that the surety must agree to any expanded scope. You cannot expand coverage unilaterally.

Maintain internal records that match the addendum. Keep a list of IOR numbers covered by your bond. Keep DBA registrations consistent with the addendum. Track facility addresses and zone numbers. If your company changes its name or structure, address that with the surety. Some changes require a separate rider in addition to an addendum.

In summary, the addendum is part of the bond contract. It is enforceable once signed and accepted. It cannot dilute the required bond obligations. It can and should clarify coverage.

How to Fill Out a CBP Form 301A – Addendum to Form 301

You will complete the addendum alongside CBP Form 301. Work with your surety and broker. Use the same legal names and numbers across all pages. Type or print clearly. Avoid abbreviations that create ambiguity.

Follow these steps:

1) Identify the bond you are supplementing.

• Enter the CBP bond number exactly as on Form 301.
• Enter the effective date of the bond or rider.
• Enter the type of bond (single or continuous) as shown on Form 301.
• Reference the activity code(s) the addendum relates to.

2) Name the principal.

• Use the full legal name of the principal on the bond.
• Include entity type (Inc., LLC, LLP) if part of the legal name.
• List the principal’s IRS EIN or SSN as appropriate.
• Provide the principal’s business address. Use the same address as on Form 301 unless updated by rider.

3) Name the surety.

• Enter the surety’s legal name as it appears on Form 301.
• Include the surety code if required by your surety.
• You, as principal, do not assign your own surety code. Your surety provides it.

4) List additional principals or trade names, if any.

• If your bond covers more than one name, list each one.
• Include DBAs, unincorporated divisions, or trade styles tied to the principal.
• For each name, add the associated IRS EIN or IOR number.
• Make sure each listed name ties to the same legal principle. Do not add unrelated companies.

Example:

• Principal: ABC Imports LLC (EIN 12-3456789).
• DBA: ABC Home & Kitchen (IOR 12-3456789).
• DBA: ABC Electronics (IOR 12-3456789).

5) List importer of record numbers covered by the bond.

• Provide each IOR number you want tied to this bond.
• Match the numbers to the correct legal names listed above.
• Use the correct nine-digit format for IRS-based IORs where applicable.
• If CBP assigned a unique number, list it exactly.

6) Identify covered activities and conditions.

• State which activity code(s) the addendum supports. For example: Activity 1 (Importer). Activity 2 (Custodian). Activity 3 (International Carrier). Activity 4 (Container Station). Activity 18 (FTZ). Activity 21 (Drawback).
• If the addendum relates to one activity only, say so.
• If the addendum supports multiple activities in one bond, list each clearly.
• Do not attempt to remove any standard conditions.

7) State the bond amount details if the addendum allocates or schedules amounts.

• For a single transaction bond that covers multiple entries, schedule each entry number and amount.
• For a continuous bond, you usually list a single amount on Form 301. Use the addendum to clarify allocation only if your surety requires it.
• Make sure any schedule matches the bond amount and does not create conflict.

Example for a single transaction bond schedule:

• Entry 123-4567890-1 — $50,000.
• Entry 123-4567891-2 — $45,000.
• Total STB amount: $95,000.

8) List facilities, zones, or locations when needed.

• For bonded warehouses, list each site address and warehouse number.
• For FTZ operators, list zone numbers and site designations.
• For carriers or container stations, list terminals or depots.
• Ensure each site is tied to the correct activity code.

9) Add any required descriptive notes that fit within CBP rules.

• You may clarify the scope of coverage, such as “coverage applies to entries filed by ABC Imports LLC and its DBAs listed above.”
• You may state the effective date for any new names or locations.
• Do not add language that limits liability below regulatory requirements.

10) Cross-reference any riders.

• If you also file a name change rider, reference that rider number and effective date.
• If you amended the bond amount by rider, reference that rider.
• Attach copies as part of your bond package unless submitted electronically.

11) Signatures and execution.

• The principal must sign. Use an authorized officer. Print the name and title. Date the signature.
• The surety must sign through an attorney-in-fact. The attorney-in-fact signs and dates. Print the name and title.
• Include the surety’s seal if used. Many sureties apply a digital or embossed seal. If not used, make sure the power of attorney is current.
• Ensure signatures are original if filing on paper. For electronic filing, follow your surety’s process.

12) Attach the surety power of attorney.

• The POA shows the attorney-in-fact’s authority to bind the surety.
• The POA must be valid on the signature date.
• If your surety files electronically, they handle this step in their system.

13) Review for consistency.

• Names, addresses, and numbers must match across the 301 and 301A.
• The bond number must match on every page.
• The effective date on the addendum should align with the bond or the rider date.
• Remove any stray or conflicting terms.

14) Submit as part of your bond filing.

• If you file a new bond, include 301 and 301A together.
• If you file an amendment, include the addendum with the rider.
• Your broker or surety will transmit or deliver the package.

Practical tips:

• Use one addendum to cover related details. Avoid stacking multiple addenda for the same change. Clarity helps CBP process faster.

• Keep a master list of IORs, DBAs, and facilities under your bond. Update it whenever you change your organization or footprint. Use a new addendum when you add a facility or DBA.

• Align naming with corporate records. If your state registration shows a comma or a punctuation mark, match it. Even small differences can delay acceptance.

• Confirm activity codes with your broker or surety before you draft the addendum. Some activities require separate bonds. Others can share a continuous bond depending on current practice.

• Check that the bond amount supports your trade volume and activities. If volume grows, you may need a rider to increase the amount. The addendum should not be used to reduce required coverage.

• For single transaction bonds, tie each listed entry to the same shipment or project if applicable. This helps CBP trace coverage during liquidation or claims.

Common mistakes to avoid:

• Leaving fields blank, especially the bond number or principal name.

• Listing a related company that is not the principal or a qualified division. Only list names that tie to the principal’s legal structure.

• Using the addendum to attempt to limit standard conditions. CBP will reject conflicting terms.

• Forgetting to update the addendum when you add new IOR numbers. If you start filing under a new IOR, ensure the bond record shows it.

• Omitting the surety’s signature or a valid power of attorney. Without the surety’s execution, the addendum is not effective.

Recordkeeping:

• Keep a complete bond file for each bond number. Include the original Form 301, all addenda, all riders, and all powers of attorney.

• Keep signed copies in your internal compliance records. If you file electronically, save the submission confirmations and final copies.

• Track effective dates. If a DBA was added on a certain date, note it. This helps resolve any coverage questions later.

If your situation is unusual, plan before you file. Complex corporate structures, mergers, or facility expansions need careful mapping. Draft the addendum with your surety. Confirm the data CBP will use for matching. Then file once, cleanly, with everything aligned.

By following these steps, you ensure the addendum does its job. It makes your bond clear, complete, and usable across your operations. It also reduces delays and questions at the border.

Legal Terms You Might Encounter

Principal means the party whose obligations the bond covers. On this form, you list the legal name and number for the principal. If you import goods, you are likely the principal.

Surety is the company that guarantees the principal’s obligations to CBP. The surety signs the bond and assumes financial risk. On this form, the surety’s name and code must match the bond.

Obligee is the party that can make a claim on the bond. Here, CBP is the obligee. When CBP assesses duties or penalties, the bond protects CBP’s recovery.

Bond is the financial guarantee itself. It ensures you will meet customs obligations. CBP Form 301A ties the bond to specific conditions and activities.

Penal sum is the maximum amount the surety may have to pay. It is the bond amount. On this form, the penal sum must match what you show on the primary bond form.

Activity code identifies what the bond covers. Examples include import entries, carriers, custodians, and zones. You use this form to list and describe each selected activity code.

Continuous bond stays in effect until canceled. It covers multiple transactions within its term. You use this form to state that coverage and its conditions.

Single transaction bond covers one entry or event. It ends when that entry is closed. If you need extra space or conditions, you may use this form.

Rider is an attachment that changes the bond after filing. Riders can change names, amounts, or activities. You use this form to add or clarify conditions that a rider references.

Liquidated damages are fixed amounts that CBP may assess for a breach. They are not a penalty set by the court. This form ties the conditions that can trigger liquidated damages.

Power of attorney is the document that authorizes an agent to sign for the surety. If an attorney-in-fact signs, this authority must be valid. Your form must align with that authority.

Term or effective date is when the bond obligations start. For continuous bonds, it is the activation date. This form must align with the dates on the main bond form.

FAQs

Do you need Form 301A for every customs bond?

Not always. If all required conditions fit on the main bond form, CBP may accept that alone. You use Form 301A when you need more space or need to list multiple activity codes, conditions, or parties. Many filers include it to avoid rejections for missing conditions.

Do you list multiple activity codes on one Form 301A?

Yes, you can. Use clear descriptions for each selected activity. Make sure the bond amount supports all selected activities. Keep your entries consistent with the main bond form.

Do you have to file a separate Form 301A for each port?

Usually no. A continuous bond typically covers all ports unless limited. Suppose you need port-specific limits; state that on the addendum. If you restrict coverage, list the covered locations clearly.

Do you need an original signature, or is electronic filing allowed?

Both methods exist. CBP accepts hand-signed or approved electronic submissions. Follow the filing method allowed for your bond type. If you sign electronically, ensure the signatory has proper authority.

Do you use Form 301A to increase or decrease the bond amount?

No. You use a rider to change the amount. Use this addendum to describe conditions and activities. If you change the amount, update all related documents to match.

Do you need a Form 301A for a single transaction bond?

Sometimes. If the main bond form captures all needed conditions, CBP may not need the addendum. If your transaction is complex, add the 301A to avoid gaps. When in doubt, include it to cover conditions.

Do you need to attach a power of attorney for the surety signatory?

If an attorney-in-fact signs for the surety, the authority must be valid and on file. Some filings require you to provide it. Confirm that the signature block matches the authority exactly.

Do you have to refile Form 301A when you change the principal’s name?

You generally use a rider for a name change. If the conditions or covered entities change, update the addendum. Keep the addendum consistent with any rider you file.

Checklist: Before, During, and After

Before signing

• Legal names and numbers for the principal.
• Principal’s tax ID or number used for customs.
• Surety name, surety code, and agent details.
• Bond number and effective date.
• Bond type: continuous or single transaction.
• Activity code(s) you need to cover.
• Required bond amount (penal sum).
• Any limits by port, location, or facility.
• Any related approvals or permits tied to activities.
• Valid power of attorney for the surety’s signatory.
• Contact details for the principal and the surety.
• Any riders you will file with this bond.
• Internal approvals from your finance or compliance team.

During signing

• Confirm the principal’s legal name matches all records.
• Verify the principal’s number matches the main bond form.
• Check the surety’s name and code for accuracy.
• Confirm the bond number and date align with the main bond.
• Verify each activity code is correct and supported.
• Confirm the bond amount aligns with the selected activities.
• Check any port or facility limits you list.
• Ensure the signatory title and authority are correct.
• Confirm the signature date is correct and legible.
• Review all entries for clarity and no blanks where needed.
• Ensure attachments or riders are listed and labeled.
• Avoid cross-outs. Use clean, final entries.

After signing

• File Form 301A with CBP along with the main bond form.
• If filing electronically, confirm receipt and acceptance.
• If filing on paper, submit as directed by CBP.
• Save stamped or accepted copies for your records.
• Distribute copies to the surety and your customs broker.
• Notify your operations, finance, and logistics teams.
• Update internal systems with the bond number and date.
• Track renewal, review, and cancellation deadlines.
• Calendar any periodic sufficiency checks of the bond amount.
• Store the form and riders in your compliance repository.

Common Mistakes to Avoid

Choosing the wrong activity code

• Consequence: CBP may reject the bond or assess claims outside coverage.
• Don’t forget to confirm each activity with your actual operations.

Mismatching names or numbers across documents

• Consequence: Processing delays or rejection.
• Ensure the principal, bond number, and surety code match exactly.

Listing an amount that conflicts with the main bond form

• Consequence: CBP may not accept the filing.
• Keep the penal sum consistent across all bond documents.

Leaving conditions or limits unclear

• Consequence: Unintended exposure or claims outside intent.
• Spell out any port limits, facility coverage, or special terms.

Missing or invalid surety authority

• Consequence: CBP may reject the filing as unauthorized.
• Verify the power of attorney and signatory details before you sign.

What to Do After Filling Out the Form

Submit the package

• File Form 301A with the main bond form. Include any riders.
• Use the filing method CBP accepts for your bond type.
• Confirm receipt and acceptance. Save the confirmation.

Coordinate with parties

• Share accepted copies with your surety and customs broker.
• Notify internal teams that the bond is active.
• Provide the bond number to your entry and logistics teams.

Align internal records

• Update your vendor and compliance systems.
• Store the signed forms and riders in a secure folder.
• Keep a log of bond changes and effective dates.

Monitor sufficiency

• Review the bond amount as your import volume changes.
• Increase the amount by the rider if your risk grows.
• Adjust activity codes if your operations expand.

Manage changes

• Use riders to change names, amounts, or coverage.
• Update the addendum if conditions or parties change.
• File changes promptly to avoid coverage gaps.

Prepare for audits

• Keep a clean record trail for all bond filings.
• Retain copies of powers of attorney and approvals.
• Document how you calculated the bond amount.

Plan cancellation or replacement

• If you end coverage, follow CBP’s cancellation steps.
• Overlap coverage when replacing a bond to avoid gaps.
• Notify all stakeholders of the end date and replacement details.