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Louisiana DWI Law Changes | Ignition Interlock Requirements Explained

Louisiana’s DWI laws were significantly revised recently, and one of the biggest updates involves mandatory ignition-interlock device (IID) requirements. Anyone facing a Louisiana DUI or DWI must understand how these changes impact probation, driver’s license status, and overall case strategy.

First-Offense DWI: IID Now Mandatory With Probation

Under the updated version of R.S. 14:98.1, a judge must require an IID for anyone placed on probation for a first-offense DWI. This is a major change from prior law, where IID installation was often optional. Now, a person on probation may only drive a vehicle equipped with a functioning IID for the entire probation period.

Second-Offense DWI: Longer and Stricter IID Rules

IID requirements for second-offense DWI cases are even tougher. If probation is granted, an IID must be installed for at least six months from the date of conviction. It must also remain installed during any period of driver’s license suspension. For BAC levels of 0.15% or above, or 0.20% or higher, the IID period may extend through the entire suspension period, which can reach up to four years.

Why These Changes Matter

These updates mean that anyone charged with a Louisiana DUI or DWI should seek immediate guidance from an experienced criminal lawyer in New Orleans. As a DWI and DUI lawyer, I help clients navigate these new IID requirements, protect their driving privileges, and build the strongest defense possible.

If you or someone you know is facing a DWI under Louisiana’s revised law, contact my office for strategic representation.

Picture of Townsend Myers

Townsend Myers

Criminal Defense Lawyer

Townsend Myers is a New Orleans criminal defense attorney with more than 30 years of experience representing individuals charged with criminal offenses in Louisiana state courts and United States District Courts. He founded NOLA Criminal Law in 1998, and focuses exclusively on criminal defense, including misdemeanor, felony, DUI/DWI, and federal criminal cases.

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