To become an air marshal in the US you apply to the Federal Air Marshal Service, part of the Transportation Security Administration, through USAJOBS. You must be a US citizen or national aged 21 to 36 (with some exceptions for veterans), then pass a polygraph exam, a medical evaluation, drug and alcohol screening and a background investigation for a security clearance before you start training.
Air marshals, officially Federal Air Marshals or FAMs, work under cover on passenger flights. Their job is to detect, deter and defeat hostile acts against aviation, on domestic and international routes. Nobody on the plane is supposed to know they're there.
I've built this guide from TSA's own careers pages and two TSA employee stories, all read as of October 2026. TSA's job announcements change, so always read the full announcement for the post you apply to.
Air marshal eligibility at a glance
| Requirement | What TSA says |
|---|---|
| Citizenship | US citizen or national |
| Age | 21 to 36 years old, with certain exceptions for veterans over 36 |
| Polygraph | A polygraph examination is required for law enforcement roles |
| Medical | A job-related medical evaluation |
| Drugs and alcohol | Pre-employment drug and alcohol screening, then random testing after you're hired |
| Background | A background investigation and security clearance |
| Selective Service | Registration is listed as a requirement for law enforcement roles |
The age limit is the one that catches people out. If you're in your late thirties and haven't served, check the exceptions in the announcement before you put time into an application.
How to become an air marshal, step by step
- Create a USAJOBS account. TSA advertises its jobs on USAJOBS, and you sign in through login.gov. TSA also reminds applicants to log in every 30 days to keep the account active.
- Find a Federal Air Marshal announcement. Read the qualifications section closely, especially any specialized experience it asks for.
- Write a federal-style resume. TSA recommends using the USAJOBS Resume Builder and listing your hours worked per week in each job. It also says it won't make assumptions about your experience, so spell it out.
- Prepare for the assessments. TSA publishes a Federal Air Marshal Assessment Battery Preparation Manual and a pre-training physical assessment guide. Use both.
- Get through the interview. Some TSA roles use a structured interview, and it's a step worth practising.
- Clear the checks. Expect the polygraph, the medical evaluation, drug and alcohol screening and the background investigation.
- Complete training. A supervisory air marshal quoted by TSA described a 16-week program covering firearms, self-defense and mission training on an aircraft.
A route in from inside TSA
You don't have to come from a police department. One of TSA's own stories follows an officer who joined TSA at Detroit airport in May 2016, moved up to lead and supervisory officer, and graduated from FAMS training in September 2023.
The decision he credits most is volunteering for an interview panel, which helped him understand the structured interview he'd struggled with before. That's a practical tip if you're already a transportation security officer and want to move across.
What the job is like
The work isn't only in the air. TSA lists ground-based assignments too, such as working as a liaison with local law enforcement at airports, supporting the FBI's Joint Terrorism Task Force, training other air marshals and working at headquarters. Air marshals also support big security events, and TSA names the State of the Union Address and the Super Bowl as examples.
The schedule is the hard part. The supervisory FAM in TSA's story put it simply: you're at the mercy of the airline and the weather, even if you have a schedule. She also pointed out that you can't call for backup at altitude, so the job asks for a calm, self-reliant mindset.
A short history
The service is older than most people think. TSA says that in 1962 the first class of 18 Sky Marshals was sworn in, drawn from Federal Aviation Administration inspectors who volunteered to protect aircraft from air piracy. After September 11, 2001 the program moved into TSA and grew into today's Federal Air Marshal Service.
Related careers
If federal law enforcement appeals but flying every week doesn't, the US Marshals Service has its own hiring route and academy. And if it's the aviation side you love, becoming a flight attendant puts you on the same flights in a very different role.
Getting your application right
TSA's hiring page has some plain advice that's easy to miss, and federal applications are often rejected for small things. Here's what it asks you to do:
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- Include your level of experience, for example whether you led a project or worked as part of a team.
- List your role and responsibilities for each job, not only your accomplishments.
- Don't copy and paste the duties from the job announcement into your resume.
- Set up a job search agent on USAJOBS so you hear about new openings.
- Double check you've attached any extra documents the announcement asks for.
Veterans get a head start too. TSA says eligible veterans discharged or released under honorable conditions receive a hiring preference during the application process.
The qualifications and the day-to-day reality of another job are explained in the step-by-step border patrol agent guide.
My verdict
Becoming an air marshal is a federal law enforcement career with a firm age window, a polygraph and a long list of checks, so it rewards people who plan early. Start with a clean record and a solid USAJOBS profile, use TSA's own preparation guides, and apply well before your 37th birthday unless a veterans' exception covers you.
The step-by-step customs officer guide is a good next read if you are still exploring.
Frequently asked questions
What is the age limit to become an air marshal?
TSA's law enforcement careers page says applicants must be 21 to 36 years old, with certain exceptions for veterans over 36.
Do you need a degree to be an air marshal?
TSA's careers pages don't list a degree for the role. Each announcement sets out its own qualifications, so read the one you're applying to closely.
How long is air marshal training?
A supervisory air marshal quoted by TSA described a 16-week training program covering firearms, self-defense and mission training on an aircraft.
Can a TSA officer become an air marshal?
Yes. TSA tells the story of an officer who joined in May 2016, became a supervisor and graduated from air marshal training in September 2023.
Do veterans get preference for air marshal jobs?
Yes. TSA says eligible veterans discharged or released under honorable conditions receive a hiring preference during the application process.
