California continues to update and refine its approach to impaired driving enforcement. If you live in the Inland Empire or anywhere in the state, understanding the California DUI laws 2026 updates could make a significant difference in how a case unfolds. From stricter ignition interlock requirements to enhanced enforcement efforts, here is what drivers need to know about DUI penalties and legal consequences in 2026.

Overview of California DUI Law

Driving under the influence in California is primarily governed by California Vehicle Code  23152. Under this law, it is illegal to:

• Drive with a blood alcohol concentration (BAC) of 0.08% or higher
• Drive under the influence of alcohol
• Drive under the influence of drugs (including marijuana or prescription medications)
• Drive while impaired by a combination of alcohol and drugs

Even if your BAC is below 0.08%, you can still be charged if officers believe your ability to drive was impaired.While California’s DUI framework remains largely consistent, 2026 enforcement trends and refinements are focusing on accountability and monitoring.

Expanded Ignition Interlock Requirements

California continues its statewide ignition interlock device (IID) program, which now applies broadly to most DUI convictions.

Under current 2026 enforcement practices:

• First-time DUI offenders are typically required to install an IID for up to 6 months
• Second-time offenders may face 12 months or more
• Repeat offenders can face extended IID periods

An ignition interlock device requires the driver to blow into a breathalyzer before the vehicle will start. If alcohol is detected, the car will not operate.

These ignition interlock requirements are now a standard part of DUI sentencing, rather than an exception.

Increased Focus on Drug-Impaired Driving

Law enforcement agencies are placing increased emphasis on drug-related DUI cases, especially involving:

• Marijuana
• Prescription medications
• Combination alcohol + drug impairment

Unlike alcohol DUIs, there is no fixed legal limit for most drugs. Officers rely on field sobriety tests, observations, and chemical testing. This makes drug DUIs more subjective — and often more defensible — than many drivers realize.

Administrative License Suspensions

Separate from criminal penalties, the DMV process can suspend your license shortly after arrest.

After a DUI arrest, you typically have only 10 days to request a DMV hearing. If you miss that deadline, your license may be automatically suspended — even before your criminal case is resolved.

Many drivers do not realize that the DMV process is entirely separate from the court case.

California DUI Penalties in 2026

DUI penalties vary depending on prior convictions and aggravating factors.

First-Time DUI

• 3 to 5 years of informal probation
• Fines and penalty assessments that can exceed $2,000
• DUI education program
• License suspension
• Ignition interlock installation

Second DUI (Within 10 Years)

• Mandatory jail time
• Longer license suspension
• Extended IID requirement
• Higher fines
• Automatically a felony after 4 or more DUIs
• Automatically a felony with any prior conviction

Aggravating Factors Can Increase Penalties

• High BAC (0.15% or higher)
• Refusal to submit to chemical testing
• Minor passenger in the vehicle
• Accident causing injury

A DUI involving injury may be charged under California Vehicle Code 23153 and can carry significantly harsher consequences.

Enhanced Enforcement in Riverside County

Law enforcement agencies across Riverside County continue to conduct:

• DUI checkpoints
• Saturation patrols
• Holiday enforcement campaigns

Officers receive ongoing training in impaired driving detection. However, DUI arrests are not automatic convictions. Field sobriety tests can be challenged. Breath testing equipment must be properly calibrated. Police must follow constitutional procedures during traffic stops and arrests.

Mistakes happen — and they can lead to reduced charges or case dismissals.

Why Early Legal Representation Matters

The most important decision after a DUI arrest is whether to speak with an experienced criminal defense attorney immediately.

DUI cases often involve:

• Challenging the legality of the traffic stop
• Examining probable cause for arrest
• Reviewing breath or blood test accuracy
• Representing you at the DMV hearing
• Negotiating reduced charges where appropriate

Without legal guidance, drivers may unknowingly give up important defenses.

Charged With a DUI in Riverside County? Call for Help

If you are facing DUI charges under the California DUI laws 2026, do not handle it alone. The consequences of a conviction can impact your license, your job, and your future.

The Inland Empire Criminal Defense law firm represents clients throughout Riverside County and surrounding areas. We understand local courts, local prosecutors, and local enforcement practices.

Your first consultation is free.

If you were arrested for DUI in Riverside County or the Inland Empire, call today at (909) 939-7126 to protect your rights and discuss your options. The sooner you act, the stronger your defense can be.