Selective Service and citizenship: how to check if you registered

This page is about proving Selective Service registration for a citizenship application. The rules are federal and the same in every state. It is general information, not legal advice. For the duty to register, see Do I need to register for Selective Service if I am undocumented?

What is Selective Service, and why does USCIS ask?

Selective Service is the federal agency that keeps a list of men who could be called up if the country ever needed a draft. Almost all men living in the U.S. between ages 18 and 25 must register. That includes green card holders and other immigrants, even undocumented men (Selective Service, Who Needs to Register). Registering does not mean joining the military.

The N-400 asks about it in Part 9, Item 22. USCIS wants to know whether you registered when you were supposed to, and if not, why not.

Why it matters for citizenship. USCIS treats a man who refused or "knowingly and willfully" failed to register as not showing attachment to the Constitution and good moral character. It will deny the N-400 in that case, but only inside a set time period, which is why your age matters so much (USCIS Policy Manual, Volume 12, Part D, Chapter 7).

Who did not have to register. USCIS lists these groups:

• Men who did not live in the U.S. at any time between ages 18 and 26. If you first came to live here at 26 or older, this is you.
• Men who lived here between 18 and 26 but kept a lawful nonimmigrant status (such as a student or work visa) the whole time.
• Men born after March 29, 1957 and before December 31, 1959.
• Women. The law covers only men.

Answer the question truthfully based on the form's instructions.

Do I need proof for my citizenship application?

It depends on your age today, and your path. Here is what the N-400 instructions and the USCIS Policy Manual say (checked October 19 and 21, 2026):

If you did register, you just answer the question and give your information. Checking your record first helps you get it right.

How do I check if I registered?

Use the online check on the Selective Service website. Go to sss.gov/verify. It asks for three things: your last name, Social Security number and date of birth. If you registered with your Social Security number, Selective Service says you can see your registration number and date online and print a copy.

• If it finds you, write down your registration number and the date. Keep a printout with your N-400 papers.
• Try every spelling of your last name you have used. Selective Service's system drops punctuation, so a hyphen becomes a space.
• If it finds nothing and you think you registered, Selective Service says to contact it during business hours: 888-655-1825, Monday to Friday, 9 a.m. to 5 p.m. Eastern, or information@sss.gov.
• If you have no Social Security number, the online check will not work for you. Call or email Selective Service.

Was I registered without knowing it?

Maybe. USCIS sends information to Selective Service for men ages 18 to 26 who apply for a green card inside the U.S. (adjustment of status). Selective Service then registers the man and mails him an acknowledgment, which counts as official proof (USCIS Policy Manual, Volume 12, Part D, Chapter 7). Check online before you assume you were never registered.

USCIS also says that if USCIS or Selective Service failed to finish that process for you, it does not count as a willful failure on your part.

I am under 26. What do I do?

Register now, before you apply. It is required for your age, and the N-400 instructions say to register first.

• Online: sss.gov/register. You need your full name, home address, date of birth and Social Security number.
• No Social Security number? Selective Service says to contact it during business hours (888-655-1825).
• Other ways: USCIS says men may also register at a local post office.

Keep the confirmation with your citizenship papers. Then check your record online before you file.

A change is scheduled. A defense law signed December 18, 2025 tells Selective Service to register eligible men automatically. The change takes effect one year after the law was signed, around December 18, 2026 (50 U.S.C. 3802, as amended by Pub. L. 119-60, sec. 535). Until it starts, and until Selective Service explains how it works, register yourself.

I am 26 to 30 and never registered. What do I send?

Two things: a status information letter from Selective Service, and your own statement. This applies at age 26 to 30 on the 5 year path, and 26 to 28 on the 3 year marriage path.

1. The status information letter. Selective Service writes this letter about your record. USCIS says it shows whether you were required to register at all. The N-400 instructions point to an old web address, and the Selective Service page for the letter no longer exists (both returned "page not found" when we checked on October 19 and 21, 2026). Call Selective Service at 888-655-1825 or email information@sss.gov and ask how to request one. Ask early. It can take time.

2. Your statement. A short, signed letter in your own words explaining why you did not register. Tell the truth. USCIS says it is up to you to show it is more likely than not that you did not knowingly and willfully fail to register. Include:

• When you came to the U.S., and how old you were
• Where you lived between ages 18 and 25
• Your immigration status during those years
• Whether you knew you had to register, and how you found out
• Anything that kept you from registering

Send both with your N-400. Keep copies.

What USCIS does next. The officer looks at your letter and statement and gives you a chance to show you did not know, or that you were not required to register. If the officer decides the failure was knowing and willful, USCIS can deny the case.

An example

This is a made up example to show the steps.

Luis came to the U.S. at 15 without papers and got his green card through his wife at 27. He is now 29 and wants to file on the 5 year path in a few months.

1. He tries sss.gov/verify with his last name, Social Security number and birth date. No record.
2. He calls Selective Service at 888-655-1825 and asks how to get a status information letter.
3. He writes a short statement: he came at 15, lived in East Palo Alto from 18 to 25 with no status and no Social Security number, did not know immigrants had to register, and learned about it at a citizenship workshop at 29.
4. A clinic reads his statement before he files. He sends the letter and the statement with his N-400.

If Luis waits until he is 31, he would not need the letter or the statement at all. A clinic can help him weigh that against filing now.

I am 31 or older. Do I need anything?

No letter and no statement if you are 31 or older on the 5 year path, or 29 or older on the 3 year marriage path. You still answer the question on the N-400 truthfully.

What mistakes should I avoid?

• Guessing. Check your record online. Do not assume.
• Waiting to request the letter. If you need one, ask for it before you finish the N-400.
• A statement that blames others or says too little. Keep it simple and true.
• Mixing up the two paths. The age cutoffs are 2 years lower on the 3 year marriage path.
• Paying someone to "fix" your record. You can check and register yourself on sss.gov. Selective Service says failing to register is a federal crime, and so is helping someone avoid it. No one can sell you a way around it. See Warning signs of an immigration scam.

Where does this fit in my application?

Selective Service is one item on a long form. For everything else, see:

• How to fill out the citizenship application, Form N-400
• What documents you need to apply for citizenship
• Can I become a US citizen? Check these warning signs first

Who can help?

A free citizenship workshop can check your record with you and help you write your statement. Contact them to confirm hours, languages and openings. Being listed here is not a referral or a promise of service. Details checked October 18, 2026.

• Community Legal Services in East Palo Alto (CLSEPA): 650-326-6440. Walk in help Monday to Friday, 9 a.m. to 1 p.m., 1861 Bay Road. For low income residents of San Mateo and Santa Clara counties.
• Immigration Institute of the Bay Area, Redwood City: free citizenship workshop on the second Tuesday of each month, 9 a.m. to 2 p.m. Register at (650) 780-7530.
• San Mateo County Immigrant Services: (650) 363-4194, immigrantservices@smcgov.org.
• Santa Clara County: the Office of Immigrant Relations keeps a list of citizenship providers. Asian Law Alliance, San Jose: (408) 287-9710.
• Anywhere in California: the state's map of free immigration legal services, or call (916) 651-8017.
• Selective Service itself: 888-655-1825 or information@sss.gov, for your record only. It does not give legal advice.

Only attorneys and DOJ accredited representatives may give you legal advice.

Questions people ask

I'm 27 and I never knew about Selective Service. Can I still become a citizen? Many men in this spot do. Send the status information letter and an honest statement. If you are unsure, a clinic can review your statement first.

I'm 32. Will they ask me about it at the interview? They may ask, as they ask about every part of the form. You do not need to send the letter or a statement at your age.

Can I register now if I'm over 26? No. Selective Service says that once you turn 26, it is too late to register. After 26, you get the status information letter instead, if your age and path call for one.

I had DACA or no papers when I was 18 to 25. Did I have to register? Yes. Undocumented men in that age group must register. If you did not, follow the row for your age today.

I was on a student visa the whole time I was 18 to 25. Did I have to register? USCIS says men who kept a lawful nonimmigrant status for the entire period did not have to. Say so in your answer, and keep proof of your status.

Does registering mean I will be drafted? No. Selective Service says the list is used only if Congress and the President tell it to support a draft. Registering only puts your name on the list.

Is there a checklist I can print?

Yes. Use it to work out what you need and to draft your statement.

Old paperwork from your younger years does not have to block your future. Check your record, tell the truth, and take the next step.