Earning the title of Automotive Service Excellence World-Class Technician is no small accomplishment. To be recognized as World-Class, these individuals have obtained ASE certification in 22 specialty areas: A1-A8 (automotive), T1-T8 (medium/heavy truck), B2-B5 (collision repair), and L1-L2 (advanced).

Not only is achieving certification in these areas impressive, but as of 2026, only 2,000 technicians have achieved World Class status.

In this Q&A, Motor Age sat down with Justin Munoz — an ASE World Class technician and director of technical training for True North Fleet Services in Converse, Texas — to learn more about his journey in the automotive industry and how gaining World-Class status helped advance his career.

Motor Age: Please introduce yourself and tell us about your experience in the automotive industry.

 Munoz: I have spent more than 25 years in the heavy-duty transportation industry as a technician, trainer, and leader. Throughout my career, I have specialized in diagnostics, electrical systems, wheel-end and foundation brake systems, preventive maintenance, and technician development.

Today, I hold 59 ASE certifications. I am an ASE Presidential Club member and ASE Subject Matter Expert (SME). I have had the opportunity to work on everything from light-duty vehicles to Class 8 trucks, trailers, fire apparatus, off-road, and heavy/specialty equipment.

While I still enjoy solving difficult technical problems, my greatest passion is helping develop the next generation of technicians.

Motor Age: What's the most memorable repair you've ever completed?

Munoz: One of the most memorable repairs of my career happened just before Christmas. A family was stranded due to a major exhaust failure and was trying to get home for the holidays. The repair required fabrication work, troubleshooting, and some creative problem-solving.

I stayed late to complete the repair and get them back on the road. What made the experience memorable wasn't the technical challenge—it was seeing the relief on their faces when they realized they would make it home for Christmas.

That experience reminded me that behind every vehicle is a person, a family, or a business relying on us. As technicians, we do more than repair equipment; we help people continue their lives and livelihoods.

Motor Age: Tell us one thing about you that we can't guess from your certifications.

Munoz: Most people assume all I do is work on trucks, but one thing many people don't know is that I spend a lot of time mentoring students and young technicians.

I volunteer with technician competitions, industry events, and workforce development programs because I believe strongly in promoting the skilled trades. I enjoy helping young people discover a career path they may never have considered.

Watching a technician gain confidence and succeed in this industry is one of the most rewarding parts of my career.

Motor Age: What automotive technology trend are you most excited about? Most concerned about?

Munoz: The technology trend I'm most excited about is the continued advancement of diagnostics and connected vehicle systems. Today's technicians have access to tools and information that allow us to diagnose issues faster and more accurately than ever before.

My biggest concern is not the technology itself, but ensuring our industry can keep pace with the training required to support it. Vehicles continue to become more advanced, and technicians must continuously develop their skills to remain effective.

I believe the future of our industry depends on investing in technician training, mentorship, and professional development. Technology will continue to evolve, but skilled technicians will always be the key to keeping equipment operating safely and efficiently.

Motor Age: How has ASE certification helped advance your career?

Munoz: ASE certification has played a significant role in my career from the very beginning. It provided a roadmap for professional growth and challenged me to continuously improve.

Over the years, ASE certification has helped open doors to leadership positions, training opportunities, and industry involvement. It has also provided credibility with employers, technicians, and customers alike.

For me, ASE World Class status represents more than passing tests—it represents a commitment to lifelong learning and professionalism. The industry is constantly changing, and ASE certification helps ensure that I continue to grow along with it.