If you have ever booked a flight in the United States, you may have seen an optional box asking for a “Redress Number.” Most travelers leave it blank, and that is exactly what they should do.
So, what is a redress number?
A redress number, formally called a Redress Control Number, is associated with the U.S. Department of Homeland Security Traveler Redress Inquiry Program, known as DHS TRIP. The program is designed for travelers who have experienced certain recurring problems during travel screening or at U.S. borders and want the government to review those problems.
Most people do not have a redress number and do not need one.
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Quick Answer: What Is a Redress Number?
A Redress Control Number is a number connected to a DHS TRIP inquiry. Travelers use DHS TRIP when they believe they have repeatedly experienced security or border screening problems, such as being delayed, denied boarding, or repeatedly referred for additional screening.
If you have never applied through DHS TRIP, you generally will not have a redress number.
That is why seeing a Redress Number field on an airline booking page does not mean you are supposed to obtain one before every flight.
Who Actually Needs a Redress Number?
A redress number is not a normal travel identification number.
DHS TRIP is intended for people seeking resolution of specific travel-related screening difficulties. Examples identified by DHS and TSA include repeated additional screening, difficulties printing a boarding pass, delayed or denied boarding, certain problems entering or leaving the United States, and other screening-related situations.
The important word is repeated.
Being selected for additional screening once does not automatically mean you need DHS TRIP. Airport screening can vary for many legitimate security reasons.
However, if you repeatedly experience unusual screening problems or believe you are being confused with another person, DHS TRIP may be worth considering.
What Does a Redress Number Do?
The redress process gives DHS an opportunity to review the travel-screening problem you report.
After an inquiry is processed, any Redress Control Number associated with your case can be used when making future travel reservations.
Providing the number helps government screening systems associate you with the information connected to your redress case.
This can be particularly useful where repeated problems have resulted from mistaken identity or similar identifying information.
However, a redress number is not a promise that you will never receive additional screening again.
Security procedures can still require further screening for other reasons.
Redress Number vs Known Traveler Number
This is one of the most common sources of confusion because airline booking forms often place the two fields near each other.
| Redress Number | Known Traveler Number |
|---|---|
| Connected to DHS TRIP | Connected to approved trusted traveler participation |
| Used in relation to travel-screening redress | Used for benefits such as eligible TSA PreCheck screening |
| Most travelers do not have one | Only approved program members have one |
| Does not provide TSA PreCheck membership | Can be associated with TSA PreCheck eligibility |
A Known Traveler Number, often called a KTN, is therefore not another name for a redress number.
If you are enrolled in TSA PreCheck or an eligible trusted traveler program, the number you normally enter in the KTN field should not automatically be entered into the Redress Number field.
Is a Redress Number the Same as TSA PreCheck?
No.
TSA PreCheck is an expedited security screening program for eligible enrolled travelers.
DHS TRIP is a redress process for people seeking review of certain travel-screening or border difficulties.
Applying for redress does not enroll you in TSA PreCheck.
Similarly, being a TSA PreCheck member does not automatically give you a Redress Control Number.
Understanding that difference can prevent one of the most common mistakes people make when completing airline passenger information.
Where Do You Find Your Redress Number?
You should not search your passport for it.
A Redress Control Number is associated with your DHS TRIP inquiry, not simply issued as part of getting a passport.
If you previously filed a DHS TRIP inquiry, use your DHS TRIP account and case information to check the status of the inquiry and locate information associated with the case.
DHS provides options to apply for redress, track an existing inquiry and find a Redress Control Number through its official program.
If you have never used DHS TRIP, you should not assume that a random number on your passport, Global Entry card or boarding pass is your redress number.
What Should You Enter in the Redress Number Box When Booking a Flight?
If DHS TRIP has assigned or associated a Redress Control Number with your case, enter that number in the Redress Number field when making an airline reservation.
If you do not have one, leave the field blank.
You do not need to apply for a redress number simply because an airline website displays the field.
This small point solves much of the confusion surrounding the keyword. The field exists for travelers who already have relevant redress information, not as a required part of every U.S. flight booking.
How Do You Apply for Travel Redress?
The official route is the Department of Homeland Security’s Traveler Redress Inquiry Program.
Start by reviewing whether your problem falls within the types of travel difficulties handled by DHS TRIP. You then provide information about your experience and the documentation requested by the program.
DHS allows applicants to track their inquiry after submission.
Use the official DHS Traveler Redress Inquiry Program rather than relying on a third-party website to handle sensitive identity information.
DHS does not promise one universal processing time. How long an inquiry takes can depend on the circumstances involved.
Does Applying Guarantee That Your Airport Problems Will Stop?
No.
This is an important limitation that is sometimes overlooked.
DHS TRIP gives travelers a process to seek review and possible resolution of qualifying problems. A Redress Control Number can help screening systems associate the traveler with the outcome of that inquiry.
It does not provide immunity from normal or additional security procedures.
You can still be selected for screening for reasons unrelated to the original problem.
For that reason, a redress number should be viewed as a tool for addressing a qualifying recurring issue, not as a fast-pass program.
Is a Redress Number Required for International Travel?
No.
Having a redress number is not a general requirement for international travel.
A traveler may encounter the Redress Number field when booking a flight involving the United States because of U.S. passenger-screening requirements, but most travelers simply leave it empty.
Your passport, visa, ESTA authorization or other immigration requirements are separate matters.
A Redress Control Number does not replace any required travel or immigration document.
Common Mistakes to Avoid
The most common mistake is assuming everyone needs a redress number.
Another is entering a Known Traveler Number in the Redress Number box simply because the fields appear close together.
Travelers also sometimes search their passport for a redress number even though it is associated with DHS TRIP rather than ordinary passport issuance.
Finally, do not expect a redress number to guarantee TSA PreCheck or eliminate every future security check.
Each of those misunderstandings comes from treating several separate U.S. travel programs as if they were the same thing.
Frequently Asked Questions
Do most travelers have a redress number?
No. Most travelers have never used DHS TRIP and therefore have no reason to enter anything in the Redress Number field when booking a flight.
Is a redress number printed on a passport?
No. Do not confuse passport numbers or other document identifiers with a Redress Control Number.
What if an airline asks for my redress number?
If you have one from DHS TRIP, enter it. If you do not have one, the field can generally be left blank.
Is a redress number the same as a Known Traveler Number?
No. A KTN relates to approved trusted traveler participation, while a Redress Control Number relates to a DHS TRIP inquiry.
Does a redress number give you TSA PreCheck?
No. DHS TRIP and TSA PreCheck serve different purposes.
Can a redress number prevent additional screening?
It may help address problems connected to the issue reviewed through DHS TRIP, but it does not guarantee that you will never receive additional screening.
Conclusion
If you were wondering what is a redress number, the simplest answer is that it is connected to the U.S. government’s travel redress process for people who have experienced certain recurring screening or border difficulties.
Most travelers do not need one.
If you have never applied through DHS TRIP, simply seeing a Redress Number box during flight booking does not mean you are missing an important travel document.
If you have repeatedly faced qualifying screening problems, use DHS’s official redress process, provide accurate information, and use the Redress Control Number associated with your case when making future reservations.
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