If TSA denied your Transportation Worker Identification Credential because it relied on inaccurate records, incomplete criminal-history information, or an incorrect interpretation of the law, you may be able to challenge the decision through a TWIC card appeal.
You generally must act within 60 days after receiving TSA’s Initial Determination of Threat Assessment. Under 49 C.F.R. § 1515.5, you can initiate an appeal by:
- Submitting a written reply disputing TSA’s determination;
- Requesting the releasable materials on which TSA relied; or
- Requesting an extension of time under the regulation.
If you do not initiate an appeal within the applicable period, TSA’s Initial Determination ordinarily becomes a Final Determination of Threat Assessment.
An appeal is appropriate when TSA’s facts or legal conclusion are wrong. If the disqualifying information is accurate, you may need a waiver instead. Some applicants should appeal and request a waiver in the alternative.
National Security Law Firm represents maritime workers nationwide in TWIC appeals and waivers. We have handled TSA credential matters since 2016 and have represented applicants in hundreds of cases.
For qualifying initial-stage TWIC appeals, our flat legal fee is $2,495. We review the TSA letter, obtain necessary court records, analyze the alleged disqualification, prepare the appeal, and manage the matter through the covered TSA stage.
Schedule a free consultation or call (202) 600-4996.
What Does a TWIC Denial Letter Mean?
A Transportation Worker Identification Credential is used by workers who require unescorted access to secure areas of federally regulated maritime facilities and vessels.
Before issuing a TWIC, the Transportation Security Administration conducts a federal security threat assessment. TSA may issue an adverse determination based on:
- A purportedly disqualifying criminal conviction
- A want, warrant, or pending indictment
- An arrest record without a reported disposition
- Immigration status
- A mental-capacity determination
- Terrorism-related, intelligence, or other security information
- Information discovered through recurrent vetting after a TWIC was issued
The letter should identify the basis for TSA’s decision and explain how to respond.
Read every page, including the instructions and attachments. The title and procedural posture of the letter matter. An Initial Determination of Threat Assessment, Final Determination, immediate invalidation, and waiver denial may carry different remedies and deadlines.
If you are unsure what you received, review our guide explaining what to do after receiving a Preliminary or Initial Determination of Ineligibility from TSA.
When Is a TWIC Appeal the Correct Remedy?
An appeal is appropriate when you assert that you satisfy TSA’s security threat assessment standards and that TSA’s adverse determination is factually or legally incorrect.
Examples include:
- The criminal record belongs to another person.
- TSA reported an arrest as a conviction.
- The criminal-history record does not show the final disposition.
- The charge was dismissed or nolle prossed.
- You were acquitted.
- You were convicted of a misdemeanor rather than a disqualifying felony.
- The original felony charge was amended or reduced.
- The conviction was reversed, vacated, or otherwise altered.
- You received a pardon that affects TSA’s treatment of the conviction.
- TSA relied on the wrong conviction date.
- TSA relied on the wrong release-from-incarceration date.
- An interim offense falls outside the applicable seven-year and five-year periods.
- The offense does not match the federal disqualifying category TSA identified.
- TSA characterized simple drug possession as distribution or possession with intent to distribute.
- A warrant has been recalled or resolved.
- An indictment has been dismissed.
- TSA relied on inaccurate immigration or mental-capacity information.
This page focuses on the TWIC appeal process. It does not reproduce every disqualifying offense because the correct analysis depends on the actual statute, disposition, dates, and records.
What Is the Difference Between a TWIC Appeal and a TWIC Waiver?
An appeal and a waiver make different arguments.
A TWIC Appeal Disputes TSA’s Determination
An appeal argues that TSA’s facts or legal conclusion are wrong. The applicant asserts that the applicant meets the security threat assessment standards.
For example:
TSA identified a felony distribution conviction, but the certified judgment shows that the applicant pleaded guilty only to misdemeanor simple possession.
That is principally an appeal issue because the applicant disputes the existence of the disqualifying conviction.
A TWIC Waiver Requests Discretionary Relief
A waiver generally accepts that a disqualifying condition exists but asks TSA to determine that the applicant does not pose a security threat.
For example:
The applicant was convicted of an accurately reported waivable offense and now presents extensive evidence of rehabilitation, stable employment, treatment, and responsible conduct.
That is principally a waiver case.
Some Cases Require Both
An applicant may dispute TSA’s legal classification while requesting a waiver in the alternative. For example, the applicant might argue that a state conviction does not match TSA’s identified federal category but also demonstrate eligibility for a waiver if TSA rejects that argument.
Alternative arguments should be drafted carefully. A poorly constructed waiver request may appear to concede a fact or legal conclusion that the applicant intended to dispute.
For a complete explanation of both remedies and NSLF’s representation, visit our TWIC waiver and appeal lawyer page.
Step 1: Read the Entire TSA Letter and Identify the Deadline
Start with the complete TSA notice—not a photograph of only the first page.
Identify:
- The date shown on the letter
- The date you received it
- The type of determination
- Each reason TSA identified
- The offense, jurisdiction, and dates listed
- Whether TSA directed immediate invalidation
- The address or portal for submitting a response
- The response deadline
- Whether the letter explains how to request TSA’s materials
Under 49 C.F.R. § 1515.5, an applicant generally must initiate an appeal within 60 days after receipt of the Initial Determination. The regulation also contains specific provisions measured from the date of service for requests and replies.
Because the wording and service history can matter, follow the deadline in the specific notice and avoid waiting until the final days to respond.
Step 2: Consider Requesting TSA’s Releasable Materials
An applicant may request copies of the releasable materials on which TSA based its Initial Determination.
A request for materials can serve two important purposes:
- It initiates the appeal within the regulatory period.
- It allows the applicant to examine the information TSA actually used before preparing the full written reply.
This may be especially useful when:
- The TSA letter describes the offense only generally.
- The listed dates do not match your recollection.
- You do not recognize the case.
- Several criminal matters could have caused the determination.
- TSA’s legal classification is unclear.
- You need to determine whether the problem originated with the FBI, a state repository, a court, or another agency.
TSA generally provides releasable materials after receiving a timely request. TSA will not disclose classified information and may withhold other information protected by law.
If you timely request the supporting materials, 49 C.F.R. § 1515.5 generally permits a written reply within 60 days after TSA serves its response to that request.
Requesting the materials should not be treated as permission to stop working on the case. Court and agency records can take weeks or months to obtain. The applicant should begin identifying and requesting the likely records while waiting for TSA’s response.
Step 3: Determine Whether the Record Belongs to You
Identity mismatches can occur because of:
- Similar names
- Common dates of birth
- Incorrect Social Security numbers
- Data-entry errors
- Alias information
- Fingerprint-record problems
- Records incorrectly associated with an applicant
If the record belongs to someone else, the appeal should provide reliable identifying evidence and address the source of the mismatch.
Potential documents may include:
- Government-issued identification
- Fingerprint comparison information
- A certified court record showing a different defendant
- A court clerk’s certification
- A law-enforcement letter
- A corrected FBI Identity History Summary
- A corrected state criminal-history record
Simply telling TSA, “That is not me,” may not resolve the problem. The response should establish why the identified record cannot legally or factually be attributed to the applicant.
Step 4: Correct an Incomplete FBI or State Criminal Record
Fingerprint-based criminal-history records frequently list an arrest without showing the outcome. A record may also omit that:
- The prosecutor declined the case.
- The charge was dismissed.
- The applicant completed a diversion program.
- The felony was amended to a misdemeanor.
- The applicant was acquitted.
- The conviction was vacated or reversed.
- The court entered a corrected judgment.
- A warrant or indictment was later resolved.
Under 49 C.F.R. § 1572.103(d), when a fingerprint-based check discloses an arrest for a listed offense without a disposition, TSA may require the applicant to provide written proof that the arrest did not result in a disqualifying conviction. That provision generally gives the applicant 60 days after service of TSA’s notification to provide the proof.
The source of the incorrect or incomplete information should be identified. Depending on the problem, you may need to contact:
- The criminal court
- The clerk of court
- The prosecutor’s office
- The arresting agency
- The state criminal-history repository
- The corrections department
- The FBI
- Another agency that maintains the disputed record
Correcting the source record is important because the same error could affect future TWIC renewals, an HME application, employment background checks, or another federal credential.
Step 5: Obtain the Official Disposition
A criminal-background report is often only the beginning of the analysis. TSA may need official records establishing exactly what happened.
Depending on the case, relevant documents may include:
- The complaint or charging instrument
- Indictment or information
- Plea agreement
- Plea or sentencing transcript
- Certified final judgment
- Dismissal or nolle prosequi order
- Judgment of acquittal
- Amended charge
- Sentencing order
- Probation or parole records
- Proof of release from incarceration
- Appellate mandate
- Vacatur order
- Pardon
- Expungement or sealing order
- Court clerk’s certification
- Prosecutor’s certification
- Corrected state or FBI criminal-history report
TSA can consider a legal submission prepared by an attorney. But an attorney’s assertion cannot substitute for reliable source documents when the appeal depends on proving the actual disposition, conviction date, release date, or correction of an official record.
National Security Law Firm obtains the ordinary court records needed for qualifying TWIC appeals as part of the covered representation.
Dismissed Charges and Acquittals
An arrest or accusation is not automatically a disqualifying conviction.
If the charge was dismissed, nolle prossed, or resulted in an acquittal, the appeal should provide official proof of that outcome.
A docket entry may be sufficient in some cases, but a certified dismissal order or disposition is often stronger. If the record is old and the court no longer has the complete file, it may be necessary to obtain corroborating evidence from the court clerk, prosecutor, arresting agency, or state repository.
Misdemeanors and Amended Charges
The criminal-offense provisions in 49 C.F.R. § 1572.103 identify specified felonies. A felony charge that was reduced to a misdemeanor may therefore support an appeal.
However, the label used in a commercial background report does not control. The appeal should establish:
- The statute of conviction
- The degree of the offense
- The final judgment
- Whether the offense was a felony in the relevant jurisdiction
- Whether the offense otherwise matches the category TSA identified
The fact that the original charge was a felony does not establish that the applicant was convicted of that felony.
Pardons, Expungements, and Vacated Convictions
Post-conviction relief can affect TSA’s analysis, but the effect is not identical in every case.
Pardons
A pardon may prevent a conviction from being treated as disqualifying under TSA’s regulatory definition, depending on the nature and scope of the pardon. The appeal should include the official pardon and records identifying the conviction covered.
Expungements
TSA’s federal definition of “convicted” addresses certain expunged convictions. But not every state process called an “expungement” has the same legal effect.
Some orders seal public records without eliminating the underlying conviction. Others dismiss, set aside, or vacate the judgment. TSA will look at the substance of the relief rather than relying only on its title.
Vacated or Reversed Convictions
A conviction overturned on appeal ordinarily presents a strong basis for challenging a determination that relies on that conviction.
A vacated judgment requires closer analysis. The appeal should establish what the court did, why it did so, and the current legal disposition. An order based on a legal defect may be treated differently from an order entered solely for rehabilitative or employment purposes.
Submit the complete signed order and any accompanying judgment, docket, opinion, or mandate necessary to establish the present status of the case.
Step 6: Calculate the Seven-Year and Five-Year Periods Correctly
The seven-year and five-year rules apply to interim disqualifying offenses.
An interim offense is disqualifying if either:
- The applicant was convicted or found not guilty by reason of insanity within seven years of the TWIC application; or
- The applicant was incarcerated for that offense and released within five years of the application.
The tests are alternatives. It is not enough to show that the conviction occurred more than seven years ago if the applicant was released from incarceration within the five-year period.
The relevant calculations may require:
- The TWIC application date
- The conviction date
- The date of sentencing
- Whether the applicant was incarcerated for that offense
- The release-from-incarceration date
- Records concerning resentencing
- Records concerning parole or probation violations
- Clarification of work release, halfway-house placement, or other custody
- Separate calculations for multiple convictions
Do not assume that the date you completed probation is automatically the release-from-incarceration date. Use official sentencing and corrections records to establish the legally relevant dates.
Step 7: Analyze Whether the Offense Matches TSA’s Category
Even when the record is accurate, TSA’s legal classification may be disputed.
State criminal statutes do not always use the same wording or elements as the federal categories in 49 C.F.R. § 1572.103. An appeal may therefore require comparison of:
- The statute in effect when the offense occurred
- The elements of the offense
- The charging language
- The admitted or proven conduct
- The judgment
- TSA’s identified regulatory category
- Relevant federal authority concerning comparability
For example, an arrest record may use a general “drug offense” label even though the conviction was only for simple possession. TSA’s interim list includes distribution, possession with intent to distribute, and importation of a controlled substance; it does not separately list simple possession.
Similarly, the fact that an offense involved dishonesty in an everyday sense does not automatically resolve whether it fits the regulatory category TSA identified.
This legal analysis is one of the circumstances in which an experienced TWIC appeal lawyer may add substantial value.
Step 8: Prepare the Written TWIC Appeal
The written reply should be tailored to TSA’s specific determination. A strong TWIC appeal ordinarily includes:
- Identification of the applicant and determination.
- A clear statement that the applicant is appealing.
- Identification of each disputed finding.
- A concise explanation of the correct facts.
- The governing legal standard.
- Application of the law to the actual disposition and records.
- Organized supporting exhibits.
- A clear request that TSA withdraw the Initial Determination.
The appeal should distinguish facts established by official records from facts supplied through the applicant’s declaration or explanation.
Avoid:
- Sending an emotional letter without supporting documents
- Minimizing or mischaracterizing the official record
- Submitting inconsistent dates
- Assuming TSA understands state-specific terminology
- Relying on a commercial background report as the final disposition
- Requesting a waiver without understanding what the request concedes
- Waiting until the final day to begin gathering records
- Submitting irrelevant character evidence when the issue is a record error
An appeal is not strengthened merely by being long. It is strengthened by directly resolving the factual or legal ground TSA identified.
How Do You Initiate a TWIC Appeal?
Under 49 C.F.R. § 1515.5, an applicant may initiate an appeal by taking one of the following actions within the applicable period:
- Submitting a written reply to TSA;
- Submitting a written request for the materials on which TSA relied; or
- Requesting an extension of time in accordance with the regulation.
The applicant should use the submission instructions in the TSA notice. Keep:
- A complete copy of everything submitted
- Proof of submission
- Delivery confirmation
- Any confirmation number
- Copies of TSA correspondence
- A timeline of receipt and submission dates
Do not send original court documents unless TSA specifically requires them. Preserve certified originals and submit clear copies in accordance with TSA’s instructions.
Can You Request an Extension?
Yes. Under 49 C.F.R. § 1515.5(f), TSA may grant an extension for good cause.
A request made before the deadline should:
- Be submitted in writing
- Identify the deadline at issue
- Explain why additional time is necessary
- Describe the efforts already made
- State the amount of additional time requested
- Be received within a reasonable time before the deadline
If the deadline has already expired, the regulation permits a written request explaining why the failure to file on time was excusable. TSA has discretion to grant or deny the request.
Good cause may include circumstances such as difficulty obtaining archived court records, delayed agency responses, hospitalization, lack of timely notice, or another documented circumstance beyond the applicant’s reasonable control. Whether a particular explanation is sufficient depends on the facts.
Do not assume an extension will be granted. Continue preparing the appeal while the request remains pending whenever possible.
What Happens After You Submit the Appeal?
After receiving the applicant’s written reply, TSA may:
- Request additional information or documents;
- Review the reply and supporting records;
- Withdraw the Initial Determination; or
- Issue a Final Determination of Threat Assessment.
Under 49 C.F.R. § 1515.5, TSA ordinarily issues a Final Determination or a Withdrawal of the Initial Determination within 60 days after receiving the applicant’s reply, although TSA may extend its time for good cause.
Withdrawal of the Initial Determination
If TSA concludes that the applicant does not pose a security threat, TSA serves a Withdrawal of the Initial Determination. The credentialing process can then continue, subject to any remaining enrollment and issuance requirements.
Final Determination of Threat Assessment
If TSA concludes that the applicant does not meet the applicable standard, it issues a Final Determination. TSA may also notify the Coast Guard and the appropriate Federal Maritime Security Coordinator as required by the regulations.
A Final Determination based on an ordinary criminal-conviction, immigration-status, or mental-capacity appeal is treated as a final TSA order for purposes of judicial review under 49 U.S.C. § 46110. It is not the same as a waiver decision.
Can You Request a Waiver After Losing the Appeal?
Potentially, if the condition is waivable.
Under 49 C.F.R. § 1515.7, an applicant may request a waiver during the application process, after pursuing some or all of the appeal procedure, or no later than 60 days after service of the Final Determination of Threat Assessment.
This can provide another path when TSA rejects the applicant’s factual or legal appeal but the identified offense falls within TSA’s waiver authority.
Not every disqualifying offense is waivable. The precise offense and regulatory category must be reviewed before relying on this option.
Is Administrative Law Judge Review Available After Every TWIC Appeal?
No.
The type of TSA decision determines what further review is available.
Ordinary Appeals Under 49 C.F.R. § 1515.5
When TSA rejects an ordinary appeal based on criminal conviction, immigration status, or mental capacity and issues a Final Determination, the regulation identifies judicial review under 49 U.S.C. § 46110.
An applicant with a waivable condition may also consider filing a waiver request within the applicable period.
Waiver Denials
If TSA denies a waiver under § 1515.7, the applicant may request review by a TSA Administrative Law Judge under § 1515.11. The request generally must be filed within 30 calendar days after service of the waiver denial.
The ALJ ordinarily may consider only the evidence previously submitted to TSA in the waiver request. That is why the initial waiver record must be developed carefully.
Appeals Based on Other Security Analyses
Different procedures apply when TSA’s determination arises from terrorism-related, intelligence, or other security analyses under § 1572.107. Those appeals are governed by § 1515.9 and may later qualify for ALJ review under § 1515.11.
ALJ proceedings, TSA Final Decision Maker review, and federal-court litigation are advanced stages that require separate evaluation.
What Does National Security Law Firm Do for a TWIC Appeal?
For qualifying matters, we handle the process rather than simply giving the applicant a template.
Our work generally includes:
- Reviewing every page of the TSA notice
- Identifying the appeal deadline
- Determining whether to request TSA’s materials
- Distinguishing an appeal from a waiver
- Identifying the source of the disputed information
- Obtaining necessary court and disposition records
- Reviewing criminal-history reports
- Calculating the seven-year and five-year periods
- Analyzing the criminal statute and TSA’s regulatory category
- Coordinating correction of source records when appropriate
- Preparing the written legal appeal
- Organizing and labeling supporting exhibits
- Submitting the appeal to TSA
- Tracking the matter through the covered initial stage
- Addressing ordinary TSA requests for additional information within the agreed scope
We have handled TWIC and HME matters since 2016 and have represented applicants in hundreds of TSA credential cases. We regularly communicate with TSA in the ordinary course of those representations. That experience does not give NSLF special influence over TSA, but it helps us identify the records, legal issues, and procedural decisions that matter.
How Much Does a TWIC Appeal Lawyer Cost?
National Security Law Firm charges a flat legal fee of $2,495 for qualifying initial-stage TWIC appeal or waiver representation.
The covered service generally includes the legal analysis, ordinary court-record procurement, evidence development, preparation, submission, and management described in the written engagement agreement.
Unless expressly included, the fee does not cover:
- Unusual third-party expenses
- Extensive litigation to correct a source record
- A separate expungement or post-conviction proceeding
- A new waiver after completion of an appeal
- Administrative Law Judge review
- An administrative hearing
- TSA Final Decision Maker review
- Federal-court litigation
- An unrelated Coast Guard, state licensing, or employment matter
The precise scope is always governed by the signed engagement agreement.
For more information about the separate government enrollment and legal costs, read our guide to TWIC card costs, TSA fees, and lawyer fees.
Financing and the Written Refund Guarantee
Eligible clients may use Pay Later by Affirm to divide the legal fee into monthly payments. Available terms and financing decisions are determined by the financing provider.
National Security Law Firm also offers a written refund guarantee in qualifying accepted TWIC matters.
The refund guarantee is not a promise that TSA will withdraw its determination, approve an appeal, grant a waiver, or issue a TWIC. TSA controls its decision, and no attorney can ethically guarantee a particular government result.
When the refund guarantee applies, the signed engagement agreement identifies the covered result and the circumstances under which NSLF will refund the covered $2,495 legal fee if that result is not achieved.
The guarantee:
- Applies only when expressly included in the signed engagement agreement
- Covers only the legal fee identified in that agreement
- Is subject to stated terms, exclusions, and client responsibilities
- Does not control or guarantee TSA’s decision
- Does not necessarily cover third-party expenses or advanced proceedings
We do not accept every case for guaranteed representation. We first review the TSA letter, procedural stage, alleged disqualification, deadlines, available records, and known facts.
Frequently Asked Questions About TWIC Card Appeals
Can I appeal a TWIC denial myself?
Yes. Federal law does not require you to hire an attorney. A straightforward error may be resolved by submitting a clear certified record. Representation may be more valuable when the records are incomplete, the offense classification is disputed, multiple cases are involved, or your livelihood depends on the outcome.
Do I appeal if I was never convicted?
Generally, yes. If TSA relied on an arrest or charge that did not result in a disqualifying conviction, the response should dispute the determination and provide official proof of the actual disposition.
Can I appeal if I was convicted of a misdemeanor?
Potentially. TSA’s criminal-offense provisions identify specified felonies. The appeal should prove the actual statute, degree, and disposition and address any discrepancy in TSA’s records.
Can I appeal based on rehabilitation?
Rehabilitation alone generally supports a waiver, not an appeal. An appeal argues that TSA’s facts or legal conclusion are wrong. If the disqualifying conviction is accurate, a waiver may be the appropriate procedure.
What is a TWIC appeal letter?
A TWIC appeal letter is the written reply disputing TSA’s Initial Determination. A proper appeal should identify the determination, explain the error, apply the governing standard, include supporting records, and clearly request withdrawal of the adverse determination.
Will TSA accept a letter from my lawyer?
TSA may consider a legal brief or appeal prepared by counsel. However, an attorney’s statement alone does not replace official evidence needed to establish a dismissal, amended charge, conviction date, release date, or record correction.
What if the courthouse destroyed my old file?
Other sources may be available, including the court clerk, prosecutor, arresting agency, state repository, corrections department, appellate court, or archived docket. The response may need to combine several official records to establish the disposition.
What if I already submitted an incomplete appeal?
Have the submission and TSA correspondence reviewed immediately. Whether additional evidence can be submitted depends on the procedural stage, the applicable deadline, and whether TSA has issued a Final Determination.
Does TSA have to decide the appeal within 60 days?
The regulation ordinarily provides a 60-day period after TSA receives the applicant’s reply, but TSA may extend its own time for good cause. Actual processing times vary.
Can an appeal restore an invalidated TWIC?
If TSA issued an Initial Determination and Immediate Revocation, § 1515.5 provides an appeal procedure. Because the credential may remain invalid while the matter is pending, immediate-revocation cases require prompt attention.
Does the refund guarantee mean NSLF guarantees approval?
No. It is a contractual refund commitment applicable only to qualifying accepted cases under the written engagement agreement. It does not promise or control a TSA outcome.
Schedule a Free Consultation About Your TWIC Appeal
A TWIC denial can put your job and access to the maritime industry at risk. The strongest response begins by determining exactly what TSA found, obtaining the source records, correcting inaccurate information, and applying the federal standard before the deadline expires.
National Security Law Firm has handled TWIC and HME cases since 2016. We represent applicants nationwide and manage the court-record, legal-analysis, drafting, and submission process for qualifying cases.
Our flat legal fee for qualifying initial-stage representation is $2,495. Financing may be available, and qualifying accepted cases may include a written refund guarantee subject to the precise terms of the engagement agreement.
Schedule a free consultation or call (202) 600-4996.
Official TWIC Appeal Resources
- TSA: Transportation Worker Identification Credential
- 46 U.S.C. § 70105—Transportation Security Cards
- 49 C.F.R. Part 1515—TSA Appeal and Waiver Procedures
- 49 C.F.R. § 1515.5—Appeal of an Initial Determination
- 49 C.F.R. § 1515.7—Waiver Procedures
- 49 C.F.R. § 1515.9—Appeals Based on Other Security Analyses
- 49 C.F.R. § 1515.11—Administrative Law Judge and TSA Final Decision Maker Review
- 49 C.F.R. § 1572.21—TWIC Security Threat Assessment Procedures
- 49 C.F.R. § 1572.103—Disqualifying Criminal Offenses
- 49 C.F.R. § 1572.111—TSA’s Definition of “Convicted”
Author: Katherine O’Brien, Esq., Founder, National Security Law Firm
Attorney Reviewed: August 26, 2026
This page provides general information and is not legal advice. Viewing this page or contacting the firm does not create an attorney-client relationship. Past results do not guarantee future outcomes. Any fee, scope of representation, financing arrangement, or refund guarantee is governed exclusively by a signed written engagement agreement.