Published on 29-Feb-2024

NDE 101: Certifications and Career Opportunities in Nondestructive Evaluation

NDE 101: Certifications and Career Opportunities in Nondestructive Evaluation

Table of Content


Non-destructive Evaluation (NDE) is a cornerstone of modern engineering, ensuring the integrity and reliability of crucial infrastructure without compromising material properties.

This scientific discipline encompasses a suite of techniques used to evaluate the condition of components and systems across various industries, from aerospace and automotive to energy and construction.

As the world emphasises safety and longevity, the demand for skilled NDE Professionals has escalated, opening a realm of career opportunities.

Certifications in NDE provide a structured pathway for individuals to demonstrate their expertise, adhere to global standards, and progress in a technology-driven field.

This article explores the various certifications available in NDE, the career opportunities they unlock, and the potential for advancement within this dynamic field.

Whether a professional is starting out or seeking to expand their technical horizons, a Career in NDE offers a blend of challenge, stability, and the satisfaction of a role in safeguarding the fabric of industry and NDE Innovation.

Certifications in Nondestructive Evaluation

Non-destructive Evaluation certifications serve as a benchmark for the skills and knowledge essential to perform inspections that prevent failures, accidents, and costly downtime.

These certifications are not only proof of professional competency but also a regulatory requirement in many sectors.

The American Society for Non-destructive Evaluation (ASNT) provides a widely recognized certification program, with three levels of qualification reflecting increasing levels of expertise and responsibility:

Level I

The entry-level certification is where individuals demonstrate a foundational understanding of NDE Methods and can perform specific calibrations and tests under supervision.

Level II

At this intermediate level, professionals must exhibit a deeper technical understanding, analyze results, and have the authority to set up and calibrate equipment.

Level III

This advanced level is for experts who can develop, qualify, and approve procedures, interpret codes, and provide oversight for NDE operations.

Other reputable organizations also offer NDE Certifications, including the International Organization for Standardization (ISO), which under ISO 9712 provides an international framework for NDE personnel qualification and certification, ensuring a harmonized standard across countries.

In addition to general NDE certifications, there are specialized certificates for various NDT Testing Methods, such as:

NDT Inspector working onsite

Ultrasonic Testing (UT)

Ultrasonic Testing uses high-frequency sound waves to detect internal flaws or to characterize materials.

An Ultrasonic Transducer applies ultrasonic pulses into materials.

When the pulses encounter a boundary with different acoustic impedances, such as a flaw, part of the energy is reflected back to the transducer. 

By analyzing these reflections, a trained NDT Technician can locate and size hidden cracks, voids, or inclusions within a part.


Level I UT:

This certification qualifies a technician to perform specific calibrations and tests under close supervision and to report the findings.

Level II UT:

Technicians with this certification can set up and calibrate equipment, interpret and evaluate results per applicable norms, standards, and specifications.

Level III UT:

This is an advanced certification for NDT Professionals who can develop, qualify, and approve procedures, interpret standards and codes, and designate test methods and procedures.

Radiographic Testing (RT)

Radiographic Testing involves the use of X-rays or gamma rays to produce images of an object’s internal structure.

This NDT Method is used to identify internal defects or to inspect welds for quality control.


Level I RT:

A Level I technician carries out limited-scope radiographic testing under the supervision of higher-level personnel.

Level II RT:

Level II technicians are responsible for more complex tasks, including the selection of the NDE Technique to be used and conducting system performance checks.

Level III RT:

At this level, individuals are responsible for establishing techniques, interpreting codes, and training and supervising lower-level technicians.

Radiographic Testing

Magnetic Particle Testing (MT)

Magnetic Particle Testing involves the magnetization of a ferromagnetic material.

The presence of a surface or slightly subsurface discontinuity in the material allows the Magnetic Flux to leak since air cannot support as much magnetic field per unit volume as metals can. 

To highlight this leakage, iron particles coated with a dye pigment are applied to the surface of the part.

These particles are attracted to the leak and form an indication directly over the discontinuity.


Level I MT:

Technicians at this level perform specific magnetizing techniques and indicate detection under supervision.

Level II MT:

These technicians independently select the proper test technique and carry out the testing according to written instructions.

Level III MT:

These professionals are capable of developing and qualifying testing procedures and interpreting codes and standards.

Liquid Penetrant Testing (PT)

Liquid Penetrant Testing is a widely applied and low-cost inspection method used to locate surface-breaking defects in all non-porous materials. 

The test object or material is coated with a visible or Fluorescent Dye Solution. Excess dye is removed from the surface, and then a developer is applied. 

The developer acts like a blotter and draws trapped dye out of imperfections open to the surface. With visible dyes, vivid color contrasts between the penetrant and developer make the “bleedout” easy to see. 

With fluorescent dyes, ultraviolet light is used to make the bleedout glow brightly, thus allowing imperfections to be readily seen.


Level I PT:

NDT Technicians at this level are qualified to process parts, and interpret and evaluate findings with respect to applicable codes, standards, and specifications, usually under the supervision of Level II or III personnel.

Level II PT:

Individuals can select the technique to be used, set up and calibrate equipment, and interpret and evaluate results.

Level III PT:

These NDT Professionals develop and approve procedures and work instructions for testing, interpret codes, and conduct training.

Liquid Penetrant Testing

Visual Testing (VT)

Visual Testing is the most basic form of NDE. It involves the visual inspection of objects for flaws such as misalignments, surface irregularities, and cracks.

Tools such as magnifying glasses, mirrors, or borescopes can enhance visual inspections.


Level I VT:

Technicians perform Basic NDE Inspections and report findings.

Level II VT:

These NDT Technicians organize and report visual inspections and are also responsible for choosing the method of inspection.

Level III VT:

At this advanced level, professionals can establish NDE programs, develop inspection procedures, and interpret standards.

NDE Apparatus

Eddy Current Testing (ET)

Eddy Current Testing is an electromagnetic testing technique usually used to inspect non-ferromagnetic materials.

An alternating current is passed through a coil which produces an alternating magnetic field; when the coil is brought near to the test piece, the alternating magnetic field will induce eddy currents in the test piece.

Discontinuities or changes in the material will cause changes in the eddy current flow, which can be detected through the changes they cause in the coil’s impedance.


Level I ET:

Level I technicians carry out testing under the supervision of Level II or III personnel and are responsible for the equipment setup.

Level II ET:

These individuals are qualified to set up and calibrate equipment, and interpret and evaluate results with respect to applicable codes and standards.

Level III ET:

These NDT Professionals have advanced knowledge and develop techniques and procedures, interpret codes, and are involved in the training and supervision of lower-level technicians.

Each of these methods requires not only a solid grasp of theoretical principles but also hands-on experience, which is why the certification process typically includes both written exams and practical evaluations.

For example, ASNT's certification program mandates passing general, specific, and practical examinations that assess the candidate's theoretical knowledge and practical skills.

The recertification process is equally important to ensure that NDE Professionals stay current with technological advancements and changing industry standards.

This often involves accumulating a certain number of professional development hours or retaking certification exams.

The certification process's complexity underscores the NDE field's critical nature. As industries evolve with the incorporation of new materials and complex structures, the role of NDE becomes ever more pivotal, creating a dynamic environment for professionals who are certified in these crucial testing methods.

Career Opportunities in Non-destructive Evaluation 

Non-destructive Evaluation is a critical part of ensuring safety and reliability in numerous industries, from aviation to civil infrastructure. 

This field offers professionals the opportunity to engage in work that is not only technically demanding but also vital to public safety and technological progress.

Career Opportunities in Non-destructive Evaluation

Entry-Level Positions 

At the entry-level, Careers in NDE begin with roles that provide exposure to the fundamentals of material testing, while also demanding keen attention to detail and adherence to safety standards.

NDE Technician Assistant

The first rung on the NDE career ladder often involves supporting certified technicians in the daily tasks of inspection and testing. Responsibilities include preparing materials, setting up equipment, and following strict safety protocols.

Certifications and Training

Entry-level roles typically require a high school diploma, but additional certifications like ASNT Level I can significantly enhance job prospects. Training in specific NDE Methods like UT, RT, or MT is also invaluable.


Entry-level NDE professionals can find employment across various sectors, including manufacturing, aerospace, Automotive, and construction firms.

Career Development:

With experience, an NDE Technician assistant can progress to a Level I technician role, taking on more responsibilities and moving towards independent work.

Team reviewing project

Mid-Level Positions

Mid-level NDE roles are characterized by greater independence and the application of more complex analytical skills.

NDE Level II Technician:

With sufficient experience and additional certification, technicians at this level conduct tests independently, interpret results, and are responsible for direct communication with clients and engineering staff.

NDE Project Manager:

Oversees NDE projects, coordinating teams, and ensuring the timely and efficient completion of testing objectives.

Quality Assurance Specialist:

Ensures the testing procedures and outcomes comply with quality standards and regulatory requirements.

NDE Instructor:

Trains entry-level technicians in specific NDE Methods and may also be involved in curriculum development for certification courses.

Mid-level roles are critical as they bridge the gap between hands-on testing and the strategic application of NDE methodologies in various industries.

Certifications and Qualifications:

A Level II certification in one or more NDE methods is required, often accompanied by an associate degree in a relevant field.

Potential Employers:

Aerospace companies, oil & gas operators, and government agencies are among the potential employers that often require the specialized skills of Level II NDE Technicians.

Career Pathways:

After several years of experience, mid-level professionals may opt to pursue Level III certifications or specialize in areas such as quality control or NDE equipment sales and service.

Advanced Career Opportunities

For those who reach the pinnacle of the NDE Field, Advanced Career Opportunities offer the chance to lead, innovate, and shape industry practices.

NDE Level III Manager:

These professionals oversee NDE operations, develop and approve procedures, and ensure compliance with all relevant standards.

They are leaders in their field and are often responsible for training and supervising lower-level technicians.

NDE Consultant:

Provides expert advice on complex NDE issues, often working with multiple organizations to improve industry practices.

Research and Development Engineer:

Works on developing new NDE Technologies and Methods, requiring a strong background in engineering and material science.

Regulatory Compliance Officer:

Ensures that NDE practices comply with all industry regulations and standards, often liaising with government and regulatory bodies.


Level III certification from a recognized body such as ASNT is a prerequisite, along with a bachelor’s degree in engineering or physical science for many senior roles.

Employment Opportunities:

Senior NDE professionals can work in high-level operational roles, consultancy, or academia, contributing to the Advancement of NDE Technologies and Methodologies.

Long-term Prospects:

At this level, there are opportunities for international work, participation in standard-setting bodies, and significant contributions to research and development within the field.

Industry Specific Opportunities

1. Aerospace 

Aerospace is a sector where safety is non-negotiable, and NDE plays a pivotal role. Professionals in this field are tasked with the critical job of ensuring that both aircraft and spacecraft can withstand the rigors of operation. 

They utilize a variety of NDE methods like ultrasonic testing for composite materials, radiography for critical welds, and eddy current inspections for detecting surface and sub-surface flaws in metallic components. 

These NDE experts work closely with regulatory bodies such as the Federal Aviation Administration (FAA) and the European Union Aviation Safety Agency (EASA) to comply with stringent safety standards. 

As the aerospace industry evolves with new materials and designs, the role of NDE is expanding, providing exciting career opportunities for professionals.

The Aerospace Industry demands the utmost precision and safety due to the risks involved in the operation of aircraft and spacecraft.

NDE professionals in this field specialize in the inspection of aircraft frames, engines, and other critical components that endure extreme conditions and stress.

Day-to-Day Responsibilities

Conducting ultrasonic and radiographic tests to detect micro-cracks and structural integrity issues.

Implementing Eddy Current Testing to evaluate the conductivity and thickness of aircraft skins.

Regularly interpreting data to make informed maintenance and safety decisions.

Certifications and Qualifications:

Advanced certifications in NDE Methods pertinent to aerospace materials and components.

Specialized training programs are provided by aerospace manufacturers and regulatory bodies.

Potential Employers:

Commercial airlines, military defense contractors, space agencies, and aviation maintenance companies.

Career Development:

Opportunities for career advancement may include roles as senior inspectors, quality assurance managers, or R&D specialists in aerospace materials.

Technological advancements:

Innovations like 3D X-ray tomography and drone-mounted sensors for inspecting aircraft are transforming aerospace NDE.

Industrial Development

2. Oil & Gas 

In the Oil and Gas Industry, NDE Professionals ensure the structural integrity and safe operation of equipment used in the exploration, extraction, processing, and transportation of hydrocarbon products.

Working environments range from offshore platforms to desert pipelines and refineries.

Techniques such as Magnetic Particle Testing, ultrasonic thickness measurement, and remote visual inspection are commonly used.

NDE specialists in this sector must be well-versed with the American Petroleum Institute (API) standards and the Offshore & Onshore Guidelines for the safe operation of rigs and refineries.

In the oil and gas sector, the stakes for NDE professionals are high, as they ensure the safety and efficiency of operations that are often situated in challenging and remote environments.

An example of the application of NDE would be the use of Automated Ultrasonic Testing robots for pipeline inspections and real-time radiography for corrosion monitoring.

Day-to-Day Responsibilities

Using magnetic particle and Liquid Penetrant Testing to check for corrosion and weld integrity on pipelines.

Applying radiographic and Acoustic Emission Testing to monitor the condition of rigs and pressure vessels.

Providing detailed reports that influence the operation and maintenance schedules of oil and gas facilities.

Certifications and Qualifications:

NDE certifications that meet the specific regulatory requirements of the Oil and Gas Industry.

Hazardous environment training and offshore safety certifications for field operations.

Potential Employers:

Oil companies, Pipeline operators, offshore drilling contractors, and petrochemical plants.

Career Development:

Growth into roles such as nde supervisors, corrosion engineers, or compliance officers in environmental safety.

3. Automotive 

The Automotive Industry relies on NDE professionals to ensure that vehicles are safe, reliable, and meet high-quality standards.

In the automotive industry, NDE Technicians focus on ensuring the reliability and safety of vehicles.

They work on everything from engine components to structural frames, employing methods like dye penetrant testing for detecting surface cracks and computed tomography for internal examinations.

Automotive NDE Professionals are essential in the manufacturing process, from the foundry to the assembly line, ensuring each vehicle meets the industry’s high-quality standards, such as those set by the Society of Automotive Engineers (SAE).

An example of the recent technological advancements in this field would be the integration of AI in ultrasonic testing for real-time defect recognition and the use of Electromagnetic Acoustic Transducers (EMATs) in the inspection of thin metal sheets.

Day-to-Day Responsibilities

Performing visual inspections and surface testing on critical components like brake systems and steering mechanisms.

Utilizing computed tomography to examine complex assemblies and embedded systems.

Collaborating with engineers to improve manufacturing processes and material selection.

Certifications and Qualifications:

Specialized NDE certifications that focus on materials and processes used in automotive manufacturing.

Continuous education to keep pace with evolving automotive technologies such as electric vehicles and autonomous systems.

Potential Employers:

Automobile manufacturers, auto parts suppliers, regulatory agencies, and vehicle inspection services.

Career Development:

Advancement to quality control management, process optimization roles, or technical consultancy within the automotive industry.

Infrastructure and Construction 

In infrastructure and construction, NDE is indispensable for assessing the integrity and longevity of structures like bridges, buildings, and dams.

Professionals use ground-penetrating radar to evaluate foundations, infrared thermography to identify heat leaks or moisture ingress, and ultrasonic testing to check the condition of steel reinforcements.

They must navigate a complex web of regulations and standards, such as those from the American Society for Testing and Materials (ASTM) and the International Code Council (ICC).

NDE is crucial in the construction industry, ensuring the safety and longevity of structures ranging from skyscrapers to bridges.

These days, NDE is being increasingly used in post-earthquake structural integrity assessments or in the preventive maintenance of historic monuments.

Also, advanced non-contact methods like laser ultrasonics for large-scale structures and the use of drones for accessing difficult-to-reach areas of buildings are gaining prominence.

Day-to-Day Responsibilities

Applying ground-penetrating radar to assess foundations and sub-surface conditions.

Implementing ultrasonic testing to verify the integrity of load-bearing columns and beams.

Regularly inspecting construction materials to ensure they meet design specifications and building codes.

Certifications and Qualifications:

NDE certifications pertinent to civil engineering materials and construction methods.

Knowledge of building regulations and structural engineering principles.

Potential Employers:

Construction firms, civil engineering companies, government infrastructure agencies, and architectural firms.

Career Development:

Opportunities to become a lead inspector, structural health monitoring specialist, or consultant in urban development projects.

The diverse range of NDE methods, each with its specialized certification path, offers professionals a way to demonstrate their expertise and commitment to excellence.

As industries continue to evolve, propelled by technological advancements and the pursuit of greater sustainability, the demand for skilled NDE practitioners is only set to grow.

With this growth comes a multitude of career opportunities, ranging from entry-level positions to advanced roles that offer the chance to lead and innovate.

Each certification, whether it be in Ultrasonic Testing (UT), Radiographic Testing (RT), Magnetic Particle Testing (MT), Liquid Penetrant Testing (PT), Visual Testing (VT), or Eddy Current Testing (ET), is a testament to a professional’s ability to adapt, learn, and apply critical skills in various scenarios.

The stringent requirements for obtaining these certifications ensure that NDE technicians are not only knowledgeable but also capable of carrying out their duties with the utmost precision and care.

For those just starting their careers, the journey begins with foundational knowledge and hands-on experience, growing through rigorous training and real-world application.

For mid-level professionals, the path leads to greater independence, with the potential to manage projects and influence industry standards. For those at the peak of their profession, the landscape is broad, filled with opportunities for research, consulting, and shaping the future of NDE practices.


The article has traversed through the multifaceted world of NDE, highlighting how critical these roles are in sectors that drive the global economy and support the safety and well-being of society.

Aspiring professionals should view NDE not just as a job but as a lifelong vocation that challenges the mind and offers the satisfaction of making a real-world impact.

The certifications and career paths discussed herein are more than just opportunities; they are a call to be part of a legacy of excellence and guardianship over the world's most vital assets.

Key Takeaways

  • NDE is vital for ensuring the safety and integrity of materials and structures without causing damage, with a growing demand for skilled professionals in this field.
  • NDE certifications, such as those offered by the ASNT and aligned with ISO standards, provide structured career progression and are often required for regulatory compliance.
  • Specialized NDE certifications are available for different testing methods, including Ultrasonic Testing (UT), Radiographic Testing (RT), Magnetic Particle Testing (MT), Liquid Penetrant Testing (PT), Visual Testing (VT), and Eddy Current Testing (ET).
  • Entry-level NDE positions offer foundational experience and exposure to testing methods, with potential career growth as technicians gain experience and additional certifications.
  • Mid-level NDE positions provide greater independence, responsibility, and the opportunity to specialize in specific NDE techniques or project management.
  • Advanced NDE roles, such as Level III Manager and NDE Consultant, involve leadership, development of new methods, and contribution to industry standards and practices.
  • NDE professionals are critical in various industries, with the aerospace sector requiring precise inspections for aircraft and spacecraft components, and adhering to FAA and EASA safety standards.
  • In the oil & gas industry, NDE technicians work in challenging environments to maintain the safety of pipelines and rigs, with a strong understanding of API standards.
  • Automotive NDE specialists ensure the reliability of vehicles, with a focus on evolving technologies like electric vehicles and autonomous systems.

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Application Notes