Use sound, X-rays and magnets to find cracks in pipelines, bridges and aircraft without cutting anything open. High school diploma in, six figures possible.
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What you earn and what it costs to get there.
Certified technician
$78,350
Trainee
$47,030
Level three or inspector
$118,330
The national median is $78,350 a year, and the bottom tenth start near $47,030. These are the figures published for the federal survey group this job sits in, which is engineering technologists and technicians, all other. There is no separate wage line for non-destructive testing on its own.
About $47,000 to $55,000
Trainee rate while you build the hours for your first certification
Trainees are paid from day one because employers do the training. Pay jumps as soon as you are signed off in your first method, and again for each method after that.
Overtime and travel
Shutdowns, night work and per diem allowances
Refineries and pipelines run testing crews around the clock during a shutdown. Ten and twelve hour days for weeks at a time, at overtime rates, with meals and hotel paid, is how people in this field push past $100,000.
Tuition, fees, exams and kit. Not rent, food or travel
Many companies hire trainees off the street, pay for the classroom hours and the certification exams themselves, and issue the coveralls and the radiation badge, so the low end is really just boots and gloves. The high end is a private technical school covering several inspection methods, which can run 5,000 to 25,000 dollars depending on how many methods it teaches. A community college certificate at about 4,000 dollars a year sits between the two, and a Pell Grant often covers most of it. Getting the employer paid route means finding a company that is hiring trainees, which depends heavily on where you live.
Fill out the FAFSA (Free Application for Federal Student Aid). A Pell Grant covers a lot of a community college certificate, and some employers will train you from scratch with no tuition at all.
Per diem
Travel jobs pay a daily allowance for food and lodging on top of your wage, and a lot of people bank most of it.
Employer paid certification
Each new method you are certified in is money the company spends and you keep for life.
Union work on big projects
Pipeline and refinery contracts are often union, with health coverage and a pension.
Work anywhere
Welds are the same in Alaska and in Texas. The certification travels with you.
The exact path from high school to qualified.
One to three years from high school, and most of it is paid.
High school diploma or GED (General Educational Development certificate)
Grades 11 and 12
That is the stated entry requirement. Shop, physics and math help more than anything else.
Training in a method
A few weeks to a year
Either a technical school program or classroom hours paid for by an employer. Ultrasonic and radiographic testing are the two that pay best.
Trainee hours on the job
6 to 18 months
You work under a certified technician and log experience hours. Each method has its own requirement.
Level one, then level two
1 to 3 years in total
Written exam, a practical exam and a vision test. Level two means you can interpret results and sign them, which is where the pay changes.
Level three
Several more years
The senior grade. You write procedures, train others and take responsibility for a company's testing program.
Physics
Sound waves, magnetism and radiation are literally the tools. Understanding them makes the training easy.
Math
Thickness calculations, angles and dose rates. Nothing advanced, but you do it constantly.
Welding or metal shop
You are inspecting welds. Knowing how one is made tells you where to look for the flaw.
English
Every test ends in a written report that somebody will rely on. Sloppy writing is a safety problem here.
Some non-destructive testing work is done through registered apprenticeships listed by the Department of Labor, where you earn a wage from the first day.
No state licenses this job. Certification is run by employers against a written practice published by the American Society for Nondestructive Testing, and your certificate technically belongs to the company that issued it, which means a new employer may retest you. The society also runs central certifications you keep yourself, including one built to an international standard that includes a hands-on practical exam. There is one real government requirement: if you shoot radiographs using radioactive sources, you work under a radiation safety license issued by the Nuclear Regulatory Commission or by your state, and you carry a dose badge every shift.
Employer training programs
The most common route. A testing company hires you as a trainee and teaches you method by method.
Community and technical colleges
Certificate and two-year programs in non-destructive testing or quality technology, mostly in industrial states.
Private training academies
Short, intensive and expensive. Check that the hours they give you count toward certification before you pay.
The military
Navy and Air Force train non-destructive inspectors on aircraft and ships, and those people walk into civilian jobs.
Things you don't need, but that help.
Ultrasonic testing
Sound waves through metal. The most useful method to hold, and advanced versions pay well.
Radiographic testing
X-rays and radioactive sources. Highest paid, most regulated, and usually worked at night.
Electromagnetic testing
Eddy current work, heavily used in aerospace and on heat exchanger tubes.
Magnetic particle and liquid penetrant testing
The two simplest methods. Nearly everyone starts here and stacks others on top.
Good color vision
Several methods rely on seeing an indication against a background. There is a vision test and people do fail it.
A clean driving record
Most of this work involves a company truck and a job site an hour away.
Comfort with heights and confined spaces
Tanks, scaffolds and the inside of pipes are normal workplaces here.
Welding knowledge
Testers who understand welding find flaws faster and get promoted sooner.
Refineries, power plants and mills shut down on a schedule to be inspected, and testing crews descend for two to six weeks of twelve hour shifts. The money is excellent and the work is relentless. People do it for a few years, save hard, then move to a steadier shop or a plant job. Going straight from high school into a traveling shutdown career at 19 pays better than almost anything else you can do with a diploma, and it is also the reason this field has a lot of burned out 30 year olds.
Day to day, pros and cons, where you'd work.
Safety briefing at 6am, then a truck out to a pipeline right of way. You set up a scanner on a girth weld, run the probe around it, and read the trace on screen looking for a shape that should not be there. Find one and the weld gets cut out and redone, which costs the contractor real money, so the results get questioned. You write it up, sign it, and move to the next joint. Radiography crews do the same work at 2am, because the area has to be cleared of people first.
The good
The hard parts
Things people don't tell you.
The professional body names ultrasonic, radiographic, liquid penetrant, magnetic particle, electromagnetic and acoustic emission testing. Most technicians end up certified in three or four of them.
Under the usual American system, certification is issued by your employer against a published written practice. Change companies and the new one can make you sit the exams again.
The federal wage survey does not break out non-destructive testing. The numbers come from a catch-all group of engineering technicians, which is worth remembering when you compare job ads.
The federal occupation profile lists a high school diploma as the typical education for this job. Very few careers with that entry point have a published median near $78,000.
Last checked September 2026. Pay figures are typical full-time annual amounts in United States dollars, based on Bureau of Labor Statistics wage data and published pay scales. They vary by state, employer and experience. Tuition is for in-state students at public schools unless the card says otherwise.