To become a locomotive engineer in the US, you'll usually start as a conductor or yardmaster, then complete 3 or more months of on-the-job training riding with an experienced engineer and earn Federal Railroad Administration certification through your railroad. You must be at least 21, pass a background check and drug screening, and meet federal vision and hearing standards.
Locomotive engineers drive freight and passenger trains between stations, and it's one of the most tightly regulated driving jobs in the country. I read the US Bureau of Labor Statistics (BLS) handbook and the federal certification rule, 49 CFR Part 240, on 26 October 2026. Here's the route.
Locomotive engineer requirements at a glance
| Requirement | What the sources say |
|---|---|
| Education | High school diploma or equivalent; some railroads prefer postsecondary education |
| Age | At least 21 (BLS) |
| Experience | Most first work as conductors or yardmasters for several years |
| Training | 3 or more months on the job, riding with an experienced engineer |
| Certification | Federal Railroad Administration certification, issued by the employing railroad, for no more than 36 months at a time |
| Medical | Vision of at least 20/40 in each eye (with or without correction) and hearing within federal limits |
| Median pay as of October 2026 | $81,410 a year (May 2025) |
How to become a locomotive engineer, step by step
- Get your high school diploma or equivalent. Rail companies typically require it, and some prefer a certificate or degree.
- Get hired by a railroad. You'll need to be at least 21 and pass a background check, and you'll face random drug and alcohol screenings throughout your career.
- Work as a conductor or yardmaster. BLS says most locomotive engineers do this for several years first. Conductors have their own certification and up to 12 months of training at most railroads.
- Complete engineer training. Expect 3 or more months riding with an experienced engineer before you operate a train alone.
- Pass certification. Your railroad runs a written knowledge test, a skills test and a supervisor check that you know every physical aspect of your route, plus vision and hearing tests.
- Stay certified. Change routes and you're recertified for the new one. Even if you don't, recertification comes round again.
What a locomotive engineer does
BLS says locomotive engineers drive freight or passenger trains between stations, including long-distance and commuter trains, but not subway trains. On a shift you'd:
- monitor systems that measure the train's operation, such as speed and air pressure
- use controls such as throttles and airbrakes to keep the locomotive running smoothly
- watch the track for obstructions
- stay in constant contact with the conductor about any change in the train's condition
It's a two-person partnership in the cab and on the radio. The conductor and engineer keep each other informed the whole way, which is why so many engineers start in the conductor's seat.
The federal rules most people don't know
Part 240 is where the detail lives. Three rules stand out:
- 36 months maximum. No railroad may certify someone as a locomotive engineer for more than 36 months, or rely on another railroad's certification that's more than 36 months old.
- Vision and hearing. You need distant visual acuity of at least 20/40 in each eye, with or without corrective lenses, and an average hearing loss in the better ear of no more than 40 decibels at the tested frequencies, with or without a hearing aid.
- Your driving record counts. Railroads review your motor vehicle driving record, but can't consider incidents from more than 36 months before the certification decision.
Operating rule violations carry real penalties too. Under Part 240, three separate qualifying incidents within 36 months mean the certificate is revoked for a year, and four mean revocation for three years. Safety discipline isn't a soft skill in this job. It's the job.
What locomotive engineers earn
BLS gives the median annual wage for locomotive engineers as $81,410 in May 2025, as of October 2026, the highest of the main railroad jobs:
| Railroad job (US, May 2025) | Median annual wage |
|---|---|
| Locomotive engineers | $81,410 |
| Railroad conductors and yardmasters | $78,000 |
| Railroad brake, signal, and switch operators and locomotive firers | $68,840 |
| Rail yard engineers, dinkey operators, and hostlers | $60,600 |
There were about 27,400 locomotive engineer jobs in 2025, out of 80,500 railroad jobs in total. Rail transportation employs 85% of railroad workers, and BLS projects 1% growth for the group from 2025 to 2035, slower than average.
What the life is like
Engineers work in climate-controlled cabs, but noise and vibration come with the job. Trains run 24 hours a day, 7 days a week, so schedules include nights, weekends and holidays, and federal rules set minimum rest hours for train operators. On long routes, you may be away from home for long periods. Short passenger routes are usually more predictable.
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If you're in the UK, the route is different and runs through train operating companies: see my guide on how to become a train driver in the UK. And if you like driving but want a quicker start, compare how to become a truck driver.
My verdict
Becoming a locomotive engineer takes patience: years as a conductor, months of training, and certification you'll renew for your whole career. In return, it's one of the best-paid jobs you can reach with a high school diploma. If you can handle irregular hours, time away from home and zero tolerance on safety rules, it's a strong long-term career.
Frequently asked questions
How long does it take to become a locomotive engineer?
Most engineers first work as conductors or yardmasters for several years, then complete 3 or more months of on-the-job engineer training, according to BLS.
How often do locomotive engineers recertify?
Under 49 CFR Part 240, a railroad can't certify an engineer for an interval of more than 36 months.
How much do locomotive engineers make?
As of October 2026, BLS gives a median annual wage of $81,410 for locomotive engineers (May 2025 data).
Do locomotive engineers have to pass a vision test?
Yes. Under 49 CFR Part 240, engineers need distant visual acuity of at least 20/40 in each eye, with or without corrective lenses, and must pass a hearing test.
What is the minimum age for a locomotive engineer?
BLS says railroad workers must be at least 21 years old and pass a background test.
