VTL 1192.4 · Article 1192
Driving While Ability Impaired by a Drug (VTL 1192.4)
This provision prohibits operating a motor vehicle when use of a drug impairs the ability to operate it. The substance must qualify as a drug under the chapter's definition, and its use must cause the impairment.
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Text us immediately · (845) 290-2492Definition under New York law
VTL 1192.4 · Original statutory wording; excerpts must be read together with the full section.
§ 1192 4. Driving while ability impaired by drugs. No person shall operate a motor vehicle while the person's ability to operate such a motor vehicle is impaired by the use of a drug as defined in this chapter.Read the full section at the New York State SenateIn everyday language
This provision prohibits operating a motor vehicle when use of a drug impairs the ability to operate it. The substance must qualify as a drug under the chapter's definition, and its use must cause the impairment.
At a criminal trial, the prosecutor must prove every element of the charged subsection and that you committed the offense beyond a reasonable doubt. An accusation is not proof of guilt. Where the statute provides alternatives, the prosecutor need not prove every alternative; the charged theory matters. Affirmative defenses may have different proof rules.
CPL § 70.20What the prosecutor must prove
- The prosecutor must prove beyond a reasonable doubt that the person accused operated a motor vehicle while the ability to operate it was impaired.
- The impairment was caused by use of a substance qualifying as a drug under the chapter's definition.
- Operation, contemporaneous impairment, and impairment caused by a qualifying drug are cumulative requirements, not alternatives; each must be proved beyond a reasonable doubt.
Defenses that commonly apply
- What evidence establishes operation and impaired ability at the same time?
- Does the identified substance fall within the chapter's definition of a drug?
- What evidence links use of that substance to impairment rather than merely showing its presence?
Penalties and collateral consequences
A Misdemeanor carries a maximum sentence of up to 1 year and a fine of up to $500 to $1,000.
Common questions about your defense
Does evidence that a drug was present establish drug-impaired driving by itself?
The statute requires impaired ability during operation caused by use of a drug as defined in the chapter. If the evidence shows only presence without establishing that causal impairment, the person accused may have a basis to contest the charge. The prosecutor must prove all required elements beyond a reasonable doubt.
Why is starting a defense early imperative?
An early defense is imperative to protect your rights and preserve evidence that may disappear. Keep court papers, messages, footage, and witness information without deleting or altering anything. Counsel can review court dates and applicable deadlines, request evidence, and begin preparing your defense immediately.
How does an experienced lawyer help build the best possible defense?
Your lawyer checks the exact subsection, compares its requirements with the evidence, and listens to your account. Depending on the charge, counsel may investigate identification, intent, witness reliability, and possible problems with searches, statements, or testing. Working together on an early strategy is imperative to pursue the best possible outcome in your circumstances; no outcome is guaranteed.
Does an arrest or police report prove the charge?
No. A police report is part of the case, not a finding of guilt. Your lawyer can compare its claims with video, records, and witnesses and assess whether admissible evidence meets each applicable requirement.
Can the charge be dismissed or reduced?
That depends on the evidence, the charged subsection, and procedural rules. Challenging evidence, filing motions, negotiating a legally available resolution, or preparing for trial may be appropriate. No lawyer can promise dismissal, reduction, or acquittal.
Every case turns on its own facts. The information on this page is general, not legal advice.
Related charges
VTL 1192.1 · Traffic Infraction
VTL 1192.4-a · Misdemeanor
VTL 1192.2-a(a) · Misdemeanor
VTL 1194 · DMV administrative hearing
VTL 1180 · Traffic infraction
VTL 1225-D · Traffic infraction
VTL 1128(a) · Traffic infraction
VTL 1129(a) · Traffic infraction
Related practice areas
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