Impaired Driving vs. DWI: What's the Difference?

North Carolina does not distinguish between “impaired driving,” “DUI,” and “DWI.” They all refer to a single criminal charge under state law, and even a first offense carries serious consequences.

A police officer pulled you over and now you have paperwork that says “Driving While Impaired.” But the officer mentioned “DWI,” your friend keeps saying “DUI,” and you have been searching “impaired driving” online trying to figure out what you are actually facing. In North Carolina, there is no legal distinction between “DUI” and “DWI.” The state’s Safe Roads Act of 1983 merged all drunk- and drugged-driving offenses into a single crime: Driving While Impaired (DWI).

If you are charged under North Carolina’s main impaired driving statute, the charge is brought as DWI, regardless of whether the alleged impairment involves alcohol, illegal drugs, or medications. The term DUI may be used in conversation, but it does not exist under North Carolina law. A Hendersonville DWI attorney at Sheffron Law can help you understand the charge and build the strongest defense for your case.

Why North Carolina Uses “DWI” Instead of “DUI”

Before 1983, North Carolina had several separate drunk and drugged driving provisions with differing penalty schemes. The Safe Roads Act repealed those statutes and replaced them with a single consolidated offense of impaired driving (DWI).

The Safe Roads Act of 1983 did away with all of the state’s previous drug and alcohol related driving laws and put everything under a single offense called driving while impaired (DWI). That means whether someone is accused of driving after drinking alcohol, taking prescription medication, or using any other substance, the charge in Henderson County, Polk County, and throughout North Carolina is always DWI.

The key difference between DWI and DUI is how states use the terms. North Carolina uses DWI to cover both alcohol and drug impairment. Other states may differentiate between DUI and DWI based on the level of intoxication or the substance involved. If you see references to “DUI” in North Carolina, they are simply using a term from another state’s system. The legal charge here is the same regardless of the label.

What Counts as “Impaired Driving” Under North Carolina Law

North Carolina’s DWI statute casts a wider net than many people realize. A person commits the offense of impaired driving if he drives any vehicle upon any highway, any street, or any public vehicular area within this State:

While under the influence of an impairing substance; or
After having consumed sufficient alcohol that he has, at any relevant time after the driving, an alcohol concentration of 0.08 or more; or
With any amount of a Schedule I controlled substance, as listed in G.S. 90-89, or its metabolites in his blood or urine.

In practical terms, this means there are multiple ways the state can prove impairment, and a BAC reading is only one of them.

You can also get a DWI without being over the 0.08 limit, as the state only needs to prove that you were “appreciably impaired.” The law also applies to prescription drugs and over-the-counter medications that affect your ability to drive safely. The fact that a person charged with violating this section is or has been legally entitled to use alcohol or a drug is not a defense to a charge under this section. A valid prescription will not shield you from a DWI charge if it impaired your driving in Hendersonville or Columbus.

North Carolina also sets stricter thresholds for certain drivers:

Commercial drivers face a BAC limit of 0.04 percent, roughly half the standard limit.
Drivers under 21 are subject to a zero-tolerance policy, meaning any detectable amount of alcohol can result in a charge.
Schedule I substances trigger a “per se” violation, where the presence of the substance alone is enough for a DWI charge, even without evidence of actual impairment.

These lower thresholds mean more people in Western North Carolina can be caught off guard by a DWI charge than they expect.

What Are the Penalties for a DWI in North Carolina?

DWI sentencing in NC is structured into six levels. From most severe to least severe, the DWI sentencing levels are:

Aggravated Level One
Level One
Level Two
Level Three
Level Four
Level Five

The judge determines your sentencing level based on the balance of grossly aggravating, aggravating, and mitigating factors in your case. Impaired driving as defined in this section is a misdemeanor. However, a conviction at any level carries lasting consequences.

At the lowest level, Level V is punishable by a fine up to $200 and a minimum jail sentence of 24 hours and a maximum of 60 days. At the highest level, an A1 “aggravated DWI” is the most serious level, allowing a maximum period of incarceration of 3 years and a fine up to $10,000. Grossly aggravating factors that can push your case to the highest levels include prior DWI convictions within seven years, driving on a revoked license, causing serious injury, or having a child in the vehicle.

Beyond fines and jail time, a DWI conviction can result in license revocation, mandatory substance abuse assessment and treatment, ignition interlock device requirements, and significantly higher insurance premiums. A common myth is that a DWI can be expunged. Under North Carolina law, a conviction for DWI is generally not eligible for an expungement. It remains on your record permanently. That permanent record can affect employment, professional licensing, and even your ability to travel internationally.

Talk to Sheffron Law About Your DWI Charge

A DWI charge in Hendersonville or Columbus does not have to define your future. With over 20 years of DWI defense experience, we know how to examine every detail of a traffic stop, challenge testing procedures, and pursue the best possible outcome. Whether this is your first offense or you are facing elevated charges, our team is ready to fight for you. Contact us today to schedule a consultation. Se Habla Espanol.

About the Author

North Carolina does not distinguish between "impaired driving," "DUI," and "DWI." They all refer to a single criminal charge under state law, and even a first offense carries serious consequences.

A police officer pulled you over and now you have paperwork that says "Driving While Impaired." But the officer mentioned "DWI," your friend keeps saying "DUI," and you have been searching "impaired driving" online trying to figure out what you are actually facing. In North Carolina, there is no legal distinction between "DUI" and "DWI." The state's Safe Roads Act of 1983 merged all drunk- and drugged-driving offenses into a single crime: Driving While Impaired (DWI).

Why North Carolina Uses "DWI" Instead of "DUI"

The Safe Roads Act of 1983 did away with all of the state's previous drug and alcohol related driving laws and put everything under a single offense called driving while impaired (DWI). That means whether someone is accused of driving after drinking alcohol, taking prescription medication, or using any other substance, the charge in Henderson County, Polk County, and throughout North Carolina is always DWI.

The key difference between DWI and DUI is how states use the terms. North Carolina uses DWI to cover both alcohol and drug impairment. Other states may differentiate between DUI and DWI based on the level of intoxication or the substance involved. If you see references to "DUI" in North Carolina, they are simply using a term from another state's system. The legal charge here is the same regardless of the label.

What Counts as "Impaired Driving" Under North Carolina Law

North Carolina's DWI statute casts a wider net than many people realize. A person commits the offense of impaired driving if he drives any vehicle upon any highway, any street, or any public vehicular area within this State:

While under the influence of an impairing substance; or
After having consumed sufficient alcohol that he has, at any relevant time after the driving, an alcohol concentration of 0.08 or more; or
With any amount of a Schedule I controlled substance, as listed in G.S. 90-89, or its metabolites in his blood or urine.

In practical terms, this means there are multiple ways the state can prove impairment, and a BAC reading is only one of them.

You can also get a DWI without being over the 0.08 limit, as the state only needs to prove that you were "appreciably impaired." The law also applies to prescription drugs and over-the-counter medications that affect your ability to drive safely. The fact that a person charged with violating this section is or has been legally entitled to use alcohol or a drug is not a defense to a charge under this section. A valid prescription will not shield you from a DWI charge if it impaired your driving in Hendersonville or Columbus.

North Carolina also sets stricter thresholds for certain drivers:

Commercial drivers face a BAC limit of 0.04 percent, roughly half the standard limit.
Drivers under 21 are subject to a zero-tolerance policy, meaning any detectable amount of alcohol can result in a charge.
Schedule I substances trigger a "per se" violation, where the presence of the substance alone is enough for a DWI charge, even without evidence of actual impairment.

These lower thresholds mean more people in Western North Carolina can be caught off guard by a DWI charge than they expect.

What Are the Penalties for a DWI in North Carolina?

DWI sentencing in NC is structured into six levels. From most severe to least severe, the DWI sentencing levels are:

Aggravated Level One
Level One
Level Two
Level Three
Level Four
Level Five

At the lowest level, Level V is punishable by a fine up to $200 and a minimum jail sentence of 24 hours and a maximum of 60 days. At the highest level, an A1 "aggravated DWI" is the most serious level, allowing a maximum period of incarceration of 3 years and a fine up to $10,000. Grossly aggravating factors that can push your case to the highest levels include prior DWI convictions within seven years, driving on a revoked license, causing serious injury, or having a child in the vehicle.