Most DUI arrests in California are charged as misdemeanors, not felonies. That doesn't make the charge minor — a misdemeanor DUI conviction still carries jail exposure, a mandatory license action, fines, and a criminal record — but it does mean the case follows a different track than a felony, with different penalties depending on whether it's a first or second offense.
The Legal Basis for the Charge
A misdemeanor DUI is charged under California Vehicle Code § 23152[1], which makes it unlawful to drive with a blood alcohol concentration of 0.08% or higher, or while impaired by alcohol, drugs, or both. Whether a violation of this section is charged as a misdemeanor generally depends on the absence of aggravating facts — no injury to another person, no prior felony DUI, and not a fourth offense within 10 years.
First Offense vs. Second Offense: Different Penalty Ranges
California sets separate statutory penalty ranges depending on how many prior DUI-related convictions a person has within the preceding 10 years:
First offense · VC 23536
- 96 hours to 6 months in county jail (at least 48 hours continuous)
- $390 to $1,000 fine, before penalty assessments
- License suspension or restriction
- Court-ordered DUI education program
Second offense within 10 years · VC 23540
- 96 hours to 1 year in county jail
- The same $390 to $1,000 fine range
- A longer license suspension
- A longer DUI program, typically 18 months
A Misdemeanor Still Triggers a Separate DMV Case
Regardless of whether it's a first or second offense, a misdemeanor DUI arrest opens a DMV administrative case that runs independently of the criminal charge. Under the Administrative Per Se process[2], a driver has just 10 calendar days from the date of arrest to request a hearing, or the license is automatically suspended — a deadline that applies whether the eventual criminal case results in a conviction, a reduced charge, or a dismissal.
How Misdemeanor DUI Cases Move Through Chino Hills Courts
A misdemeanor DUI arrest in Chino Hills is arraigned at the Rancho Cucamonga Justice Center[3], the San Bernardino County Superior Court location serving Chino Hills, Chino, Ontario, Upland, and Montclair. Under Penal Code § 825[4], arraignment must occur without unnecessary delay. From there, most misdemeanor DUI cases proceed through one or more pretrial hearings, where the arrest report, chemical test procedures, and any body-worn camera footage are reviewed, before resolving through a negotiated outcome or, less commonly, a trial.
Why the Prior-Conviction Count Matters So Much
Because the penalty range depends entirely on how many qualifying convictions fall within the 10-year lookback period, confirming that count is often one of the first things worth reviewing in a misdemeanor case. A prior conviction that's miscounted, too old to qualify, or improperly obtained can be the difference between a first-offense and second-offense penalty range.
What a Misdemeanor DUI Defense Typically Examines
- Whether the initial traffic stop was legally justified
- Whether field sobriety tests were administered according to standardized procedures
- Whether the chemical test equipment was properly calibrated and maintained
- Whether any prior convictions being counted toward a second-offense charge are accurate and properly countable
Frequently Asked Questions
Will I go to jail for a misdemeanor DUI in Chino Hills?
It depends on the specific facts and whether it's a first or second offense — the statutory minimum for a first offense is 96 hours, though many cases resolve with alternatives to jail depending on negotiation and circumstances.
How is a second-offense DUI different from a first?
A second offense within 10 years carries a longer potential jail term, a longer license suspension, and a longer mandatory DUI education program under Vehicle Code 23540, compared to the penalties for a first offense under Vehicle Code 23536.
Does a misdemeanor DUI still affect my driver's license?
Yes — a misdemeanor DUI triggers both a court case and a separate DMV administrative case, with its own 10-day deadline to request a hearing and prevent an automatic suspension.
Questions about your case? Call (323) 622-4951. Free, confidential, 24/7.
Charged With a Misdemeanor DUI in Chino Hills?
Even a "standard" misdemeanor DUI case has real stakes and real deadlines. The Cespedes Law Firm, L.C. is headquartered in Chino Hills and represents clients in English and Spanish throughout California. Call (323) 622-4951 for a free consultation.
This page is provided for general information only and is not legal advice. Contact our office to discuss the specifics of your case.
