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Your Path to Compliance

Maintaining your driver's license is essential for everyday life. It’s important to research and choose your interlock provider wisely. At National Interlock, we prioritize honesty and integrity in all our services. We pride ourselves in our extensive knowledge of interlock regulations and vehicle electrical systems. Our crew is dedicated to guiding you through process of staying compliant and completing the program efficiently. Remember, just as you wouldn’t seek legal advice from your dentist, don’t trust your interlock needs to just any auto shop, choose the specialist.

Welcome to our in-person classes, designed to fit your busy schedule! Choose to complete the state-required 12 hour class in one session or opt for our convenient two 6-hour sessions, keeping in mind that part one must be completed before part two. We regularly add new sessions every month, so be sure to check back often. For those who desire complete privacy, we also offer one-on-one classes tailored to your needs.

Choose your own schedule!

Didn’t see a class that works with your schedule? Request a date as well as half day or full day and we will put it on our calendar to see if we can get enough interest to have it!!! Please choose a date that is at least 4-6 weeks from today in order to get enough participation to keep it on our schedule. All classes will be held in person and virtual unless otherwise noted. You will be notified well in advance if we do not see enough activity to make it possible. 

National Interlock

5446 Hilton Industrial Way

Knoxville TN 37921

Phone: 865-252-3669

Fax: 865-444-5168

Email: class@tnduiservices.com

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