The Day After the Oath
Roberto Reyes became a U.S. citizen in 1995, after more than two decades as a lawful permanent resident. He remembers the oath ceremony clearly, the small American flag they handed him, the weight of the moment. What he doesn’t remember anyone explaining is everything that changed the next morning, practically speaking, and everything he was now expected to do.
If you’ve recently taken the Oath of Allegiance, or you’re preparing for it, the ceremony itself is the finish line of one process and the starting line of several others. Citizenship changes your legal relationship to the United States in ways that are immediate and permanent. Some of those changes are rights. Some are obligations. A few are new options that didn’t exist for you as a green card holder. This page walks through all of them.
What Changes Immediately
The moment you take the oath, several things shift at once. You now have the right to vote in federal, state, and local elections. You’re eligible for federal jobs that require U.S. citizenship, including positions with agencies like the State Department, the FBI, and the TSA. You can travel on a U.S. passport, which means you no longer need to worry about reentry permits, expired green cards at the border, or the particular anxiety of returning from abroad and wondering whether anything has changed while you were gone. For most travelers, that particular worry is largely behind you.
You also gain the ability to sponsor a wider range of family members for immigration, and in faster categories than were available to you as a permanent resident. That change alone reshapes what’s possible for many families, and it’s covered in detail below.
With these rights come obligations. You’re now required to serve on a jury if called. Jury duty summons arrive by mail, and ignoring them can result in fines or a court order to appear. You’re also expected to register with the Selective Service if you’re a male between 18 and 25 and haven’t already registered, since almost all male U.S. citizens and male immigrants in that age range are required to register regardless of immigration status, per the Selective Service System (as of June 2026). And you’re now subject to the same tax obligations as any other U.S. citizen, which for most people doesn’t change much practically, but matters if you spend extended time abroad. U.S. citizens owe federal taxes on worldwide income no matter where they live.
One thing that doesn’t change: your citizenship is permanent. Unlike lawful permanent residence, which can be lost through prolonged absence, criminal convictions, or abandonment, naturalized citizenship can only be revoked under narrow legal circumstances, almost all of which involve fraud or misrepresentation in the original application. However, since June 2025, the Department of Justice has directed its Civil Division to prioritize denaturalization, and the memo setting that priority lays out ten categories of cases to pursue, per the DOJ Civil Division enforcement-priorities memo (PDF) (as of June 2026). The legal standard for revocation remains high, requiring the government to prove its case in federal court, but the enforcement environment appears to have shifted. If you have any concern about discrepancies or omissions in your naturalization application, even minor ones, consult an immigration attorney sooner rather than later.
Registering to Vote in California
California makes voter registration straightforward, and for new citizens, it’s worth doing immediately. You can register online at registertovote.ca.gov, by mail using a paper form available at any post office or DMV, or in person at your county elections office.
If you haven’t registered by an election deadline, California offers same-day voter registration, sometimes called conditional voter registration. You can walk into any polling place or vote center on Election Day, register on the spot, and cast a provisional ballot. That ballot gets counted once your registration is verified. This applies to every election, not just presidential races.
You’ll need your California driver’s license or ID number, or the last four digits of your Social Security number, to register. If you got your driver’s license through AB 60, the license program for people without proof of legal presence, you’ll want to make sure the DMV has updated your record to reflect your new citizenship status. Otherwise the system may flag your registration, which creates delays that are avoidable with a quick visit or phone call to the DMV before you register.
Registering to vote is not automatic. Citizenship gives you the right, but you still have to exercise it.
Getting Your U.S. Passport
At your naturalization ceremony, you received a Certificate of Naturalization. This document is your proof of citizenship, and it’s what you’ll use to apply for your first U.S. passport. Guard it carefully. Replacing a lost or damaged certificate involves filing Form N-565 with USCIS, paying a fee, and waiting months.
To apply for a passport, you’ll submit Form DS-11 in person at a passport acceptance facility. Most post offices serve as acceptance facilities, and many county clerk offices do as well. You can find the nearest location through the State Department’s website. Bring your Certificate of Naturalization, a passport photo that meets State Department specifications, a valid form of photo ID, and the application fees. A first-time adult passport book involves two fees: an application fee paid to the State Department and a separate execution fee, listed at $35, paid at the acceptance facility. Because these amounts change, confirm the current total on the State Department’s fee schedule (as of June 2026) before you go.
Routine processing typically takes four to six weeks, though the State Department’s actual turnaround can fluctuate with season and demand, with the busiest stretch running from late winter into summer. Mailing times can add up to two weeks each way, so plan accordingly. Expedited processing, for an additional fee, generally cuts the timeline to two to three weeks, per the State Department’s processing-times page (as of June 2026). If you have a trip booked within two weeks, you can make an appointment at a regional passport agency for emergency processing, but availability is limited and you’ll need proof of travel.
One practical note: your naturalization certificate is the only proof of citizenship you have until your passport arrives. You’ll need to submit the original certificate with your passport application, and the State Department will return it later, often in a separate mailing. If you’re nervous about mailing your only proof of citizenship, make and keep a clear copy for your records before you apply.
Sponsoring Family Members
This is where citizenship opens doors that permanent residence kept closed, or at least kept on very long timelines.
As a lawful permanent resident, you could petition for your spouse, your unmarried children under 21, and your unmarried adult children. All of those petitions fell into preference categories with wait times that vary by country of birth and can stretch for many years, in some categories well over a decade. The State Department’s Visa Bulletin (as of June 2026) is where those priority dates and per-country backlogs are published. As a citizen, the landscape shifts considerably.
Your spouse and your unmarried children under 21 now fall into the “immediate relative” category, which has no annual numerical cap. That’s the critical difference. No cap means no years-long line. USCIS still takes time to process the petition and the underlying application, but the structural bottleneck, the visa backlog, disappears for these family members. If your spouse or minor child is already in the United States with legal status, they may be able to adjust status without leaving the country.
You also gain the ability to sponsor your parents, which permanent residents cannot do at all. Parents of U.S. citizens are also immediate relatives, so they benefit from the same uncapped category. And you can now petition for your married children and your siblings, categories that weren’t available to you as a permanent resident. These categories do have numerical caps and significant wait times, but the ability to file in them is something citizenship opens up for you.
For a detailed look at each family petition category, the priority date system, and what the current wait times look like, see the family sponsorship overview and the wait times page. If you filed a family petition while you were still a permanent resident and that petition is still pending, your naturalization may automatically upgrade it to a faster category. This doesn’t require a new filing, but it’s worth confirming with USCIS or an attorney that the upgrade has been reflected in the system.
One thing to keep in mind: sponsoring a family member means signing an Affidavit of Support, Form I-864, which is a legally enforceable commitment to financially support that person. It’s not a formality. The obligation generally lasts until the sponsored immigrant works 40 qualifying quarters under Social Security, becomes a citizen themselves, dies, or permanently departs the United States. Understand what you’re signing before you sign it.
What to Do with Your Green Card
USCIS policy is clear: once you naturalize, your green card should be surrendered. At most naturalization ceremonies, officers collect green cards on the spot. If yours wasn’t collected, or if you still have it, USCIS’s position is that you should turn it in at a local USCIS office.
The practical reality is that many new citizens hold onto their green cards, intentionally or not. The card no longer serves a legal purpose, you’re no longer a permanent resident but a citizen, and using it as though you’re still an LPR could create confusion in government records. You shouldn’t use it for employment verification, border crossings, or any purpose where your current status matters. Your Certificate of Naturalization, and eventually your U.S. passport, are now your identity documents for immigration-related purposes.
If you’re sentimental about the card, there’s nothing illegal about keeping it in a drawer. The issue arises only if you use it in a context where it misrepresents your status. Most people find that once the passport arrives, the green card becomes a relic of a chapter that’s finished.
California-Specific Context
California offers new citizens a few advantages worth knowing about. The state’s same-day voter registration means you won’t miss an election just because your ceremony happened close to a deadline. California also doesn’t restrict jury service in ways some other states do, so expect that summons to arrive eventually.
If you’re sponsoring family members who are already in California, the state’s safety net programs, including Medi-Cal and CalFresh, have eligibility rules that vary by immigration status. Your sponsored relatives’ access to these programs may be affected by the Affidavit of Support you sign and by federal public charge considerations. Those intersections are complicated enough that they deserve their own research before your family member applies for benefits. Through 2025, California had been more generous than most states in extending health coverage to immigrants regardless of status, but significant changes are taking effect, and the rules are still shifting. According to the state Department of Health Care Services, starting in January 2026, adult immigrants ages 19 through 64 who do not have a qualifying immigration status can no longer newly enroll in full-scope Medi-Cal, and starting in July 2026, non-emergency dental coverage changes for those same adults. People already enrolled and certain groups are treated differently, so the exact effect depends on the individual. For the current rules and who is affected, see the DHCS Medi-Cal changes page (as of June 2026). For sponsored relatives arriving with green cards, a five-year waiting period for full federally funded Medi-Cal typically applies, though exceptions exist, for example for refugees and asylees and for people with enough work history, and California may cover some groups sooner, per the federal CMS overview of non-citizen eligibility in Medicaid and CHIP (PDF) (as of June 2026). The benefits landscape is shifting, and your family members should check current eligibility before making decisions about enrollment.
For new citizens who previously held AB 60 driver’s licenses, updating your DMV record to reflect citizenship status is a practical step that prevents complications with voter registration and with Real ID compliance. Per the California DMV (as of June 2026), a REAL ID or other accepted document is needed to board domestic flights after the May 7, 2025 deadline. Confirm current requirements with the DMV or TSA, since enforcement details can change.
Next Steps
The most time-sensitive step is applying for your passport. Until it arrives, your Certificate of Naturalization is your only proof of citizenship, and it’s not a document you want to carry around daily. Getting the passport application submitted within the first few weeks after your ceremony saves you from a gap that can be inconvenient if you need to travel or verify your status for employment.
Register to vote, either online or at your county elections office, and update your DMV record if you held an AB 60 license. If you plan to sponsor family members, begin reviewing the sponsorship process and the current wait times so you understand the timeline and the financial commitment before you file.
If any part of your situation is complicated, whether it involves a pending family petition that needs to be reclassified, questions about your Affidavit of Support obligations, or anything else that feels uncertain, talk to an immigration attorney or accredited representative. Free and low-cost legal help is available throughout California. You can find options through our Find Help page.
