Jobs that require citizenship or security clearance
Many government and defense jobs require US citizenship, a security clearance, or both, and applying without meeting those requirements wastes your time and theirs.
This guide explains which jobs carry those requirements, what the clearance levels mean, how long the process takes, and what options you have if you are not yet eligible.
Which jobs require citizenship
In the United States, federal civilian positions are generally restricted to US citizens under 5 CFR Part 7. That covers roles at agencies like the Department of Defense, the FBI, the CIA, the NSA, and most of the intelligence community. Many state and local government jobs carry the same restriction, though rules vary by jurisdiction.
Defense contractors such as Lockheed Martin, Raytheon, Booz Allen Hamilton, and Leidos routinely require citizenship because the work involves classified systems or export-controlled technology under the International Traffic in Arms Regulations (ITAR). A job posting that says 'US person required' under ITAR includes citizens and lawful permanent residents, so green card holders can sometimes qualify for those roles even if they cannot hold a clearance yet.
In Canada, positions designated as 'secret' or higher under the Treasury Board Policy on Government Security require Canadian citizenship. In the UK, developed vetting (DV) clearance requires British citizenship or, in limited cases, long-term residency. In Australia, Positive Vetting (PV) clearance is restricted to Australian citizens.
- US federal civilian jobs: citizenship required by law for most positions
- Defense contractors with ITAR work: citizenship or lawful permanent resident status
- Intelligence community roles (CIA, NSA, DIA): citizenship required, no exceptions
- Canada secret clearance and above: Canadian citizenship required
- UK DV clearance: British citizenship required in almost all cases
- Australia PV clearance: Australian citizenship required
Security clearance levels explained
In the US, clearances come in three main tiers: Confidential, Secret, and Top Secret. Top Secret can be extended with a Sensitive Compartmented Information (SCI) access, written as TS/SCI. Each level requires a progressively deeper background investigation.
Confidential and Secret clearances are investigated by the Defense Counterintelligence and Security Agency (DCSA). A Secret clearance typically takes three to six months in 2026. A Top Secret investigation can take six to eighteen months depending on your background, foreign contacts, and financial history. TS/SCI with a polygraph, required for many intelligence roles, can take longer still.
Clearances are sponsored by an employer, not applied for independently. You cannot walk in with a clearance already in hand unless a previous employer sponsored you and the clearance is still active. Active clearances can be transferred to a new employer, which is why job postings often say 'active TS/SCI preferred' rather than required.
- Confidential: lowest tier, five-year reinvestigation cycle
- Secret: mid tier, ten-year reinvestigation cycle, most common requirement
- Top Secret: high tier, five-year reinvestigation cycle
- TS/SCI: Top Secret plus access to compartmented programs
- TS/SCI with polygraph: required for NSA, CIA, and some contractor roles
What disqualifies someone from a clearance
The adjudicative guidelines used by US agencies cover thirteen areas. The most common disqualifiers are foreign contacts or dual citizenship, financial problems such as significant unpaid debt or bankruptcy, drug use within recent years, criminal history, and dishonesty during the investigation itself.
None of these is automatically disqualifying. Investigators look at the whole picture: how recent the issue was, whether you disclosed it voluntarily, and whether you have taken steps to address it. A single past marijuana use is treated very differently from ongoing use or a pattern of deception.
Foreign national family members are a common concern but not an automatic bar. You will need to document those relationships and may be asked to limit contact in some cases. Dual citizenship is more complicated and often requires renouncing the second citizenship for the highest clearance levels.
Alternatives if you are not eligible for clearance roles
If you are not a US citizen or do not yet hold a clearance, a large portion of the defense and government market is closed to you, but the private sector equivalent is not. Many skills that feed into cleared work, such as cybersecurity, systems engineering, data analysis, and software development, are in high demand at companies that do not require clearances.
Some roles are explicitly labeled 'clearable' rather than 'cleared required.' These are positions where the employer will sponsor you for a clearance after hiring, meaning you only need to be eligible, not already cleared. Eligibility means you are a US citizen with a background that can pass investigation.
If you are a green card holder, focus on ITAR-covered roles that accept US persons rather than citizens only. Read the posting carefully. Phrases like 'must be a US citizen' and 'must be a US person' are legally distinct. If you are on an H-1B or other nonimmigrant visa, cleared and most federal roles are not available to you, and it is worth filtering those out before you apply.
- Look for 'clearable' postings if you are a citizen without a current clearance
- Green card holders: target ITAR roles that say 'US person' not 'US citizen'
- H-1B and other visa holders: filter out federal and cleared roles entirely
- Private sector cybersecurity, cloud, and defense-adjacent tech roles often have no clearance requirement
- Consider roles at federally funded research and development centers (FFRDCs) which sometimes have more flexible requirements
How to read a job posting for eligibility requirements
Clearance and citizenship requirements are sometimes buried in the middle of a long posting or listed under a separate compliance section at the bottom. Skimming the headline and responsibilities without reading the full posting leads to wasted applications.
Look for these exact phrases: 'must be a US citizen,' 'active Secret clearance required,' 'TS/SCI with polygraph required,' 'must be eligible to obtain a clearance,' and 'US person as defined by ITAR.' Each phrase has a different meaning and a different pool of eligible candidates.
Break-In Bad's assistant Omar reads the full posting, including the fine print, and flags eligibility issues before you apply. She scores each job and will not auto-apply to roles where the posting indicates you do not meet the stated requirements, which saves credits and avoids rejections that come back within hours.
Getting your first clearance sponsored
The path to a first clearance starts with a job offer from a company that holds a facility clearance (FCL). You cannot self-sponsor. Entry-level roles at defense contractors, the military services, and some federal agencies are the most common entry points.
Internships at cleared contractors are a practical route for students. Many large contractors run summer programs that lead to full-time offers with clearance sponsorship. ROTC and military service are another path: active duty service members are often granted clearances as part of their role.
Once you have an offer, the employer submits an e-QIP (Electronic Questionnaire for Investigations Processing) request. You complete a detailed SF-86 form covering the past ten years of your life. Be thorough and honest. Omissions discovered later are treated as deception and are more damaging than the underlying issue.
- Get a job offer from a company with an existing facility clearance
- Complete the SF-86 form accurately and completely
- Undergo a background investigation by DCSA or the relevant agency
- Receive an interim clearance (sometimes granted for Secret level while full investigation continues)
- Receive final adjudication and begin work on classified programs
Stop applying to jobs you are not eligible for
Omar reads every posting in full, flags citizenship and clearance requirements, and only applies when you qualify. You get 50 free credits when you sign up, with no subscription required.
Start freeQuestions people also ask
Can a green card holder get a US security clearance?
In rare cases, a lawful permanent resident can be granted a Secret clearance if there is a compelling need and no US citizen is available for the role. In practice this is uncommon and almost never applies to Top Secret or TS/SCI. Most cleared employers require US citizenship.
How long does a Secret clearance stay active?
A Secret clearance is valid for ten years and requires a periodic reinvestigation before it lapses. If you leave a cleared job, the clearance goes into a dormant state and can be reactivated by a new employer within two years without a full reinvestigation.
Do all federal government jobs require a security clearance?
No. Many federal positions are unclassified and require only a standard background check, not a formal clearance. Roles at agencies like the USDA, the Census Bureau, or the Department of Education often fall into this category, though citizenship is still typically required.
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