The National District Attorneys Association’s National Traffic Law Center (NTLC) is a resource designed to benefit prosecutors, judges, law enforcement officers and others in the justice system. The mission of NTLC is to improve the quality of justice in traffic safety adjudications by increasing the awareness of highway safety issues through the compilation, creation and dissemination of legal and technical information, and by providing training and reference services.

Commercial Driver's License

Impaired Driving & Other Traffic Topics

Training Courses & Materials

Publications

Traffic Safety Resource Prosecutors (TSRP)

Resources & Legal Research

Traffic Safety Partner Links

Technical Assistance (TA) Request

The Latest

Our latest publications include our Between the Lines newsletter, Constitutional Law Issues in Impaired Driving Cases, Commercial Drivers’ Licenses: A Prosecutor’s Guide to the Basics of Commercial Motor Vehicle Licensing and Violations and Challenges and Defenses III: Responses to Common Challenges and Defenses in Impaired Driving Cases

June 2025 Issue

Constitutional Law Issues in Impaired Driving Cases

Commercial Drivers' Licenses: A Prosecutor's Guide to the Basics of Commercial Motor Vehicle Licensing and Violations

Challenges and Defenses III: Responses to Common Challenges and Defenses in Impaired Driving Cases

NTLC is proud to announce the From Roadside to Record training curriculum is now available for download.

Many prosecutors, law enforcement officers, judges and clerks are unaware of the federal prohibition against Masking (49 CFR 384.226). As a result, charges against CDL holders are often improperly deferred, diverted, reduced or dismissed.

Calendar

Upcoming Trainings & Events

July 2025 Mastering Masking: Legal and Ethical Consequences of Plea Negotiations Involving Commercial Driver’s Licenses

Charlottesville, VA

July 17, 2025

5.25

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The Confrontation Clause and Its Impact on Traffic Safety: A Primer

Recorded Webinar

0.00

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Hospitals, HIPAA, and Impaired Driving Cases

Webinar

August 2024

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Part One: The Roadside from National Traffic Law Center on Vimeo.

From Roadside to Record

NTLC’s video series, “From Roadside to Record,” produced with funding from the Federal Motor Carrier Safety Administration, is perfect for use in CDL related training. They focus on enforcing, prosecuting and adjudicating CDL traffic stops in accordance with federal and state regulations.