Inland Empire Teen Drivers and California's New DUI Laws for 2027
Current as of November 2026.
On September 25, 2026, Gov. Gavin Newsom signed four DUI bills.
AB 1546, SB 907, AB 1685 and AB 1687 address felony charging, warnings given during plea agreements, certain hit-and-run penalties and consequences for driving privileges.
Say a mom named Teresa in Ontario watched her sixteen-year-old, Marcus, pass his road test last week. Now she's adding him to the family policy before he drives down Euclid Avenue alone. Here's what she needs to know.
SB 907 and the core provisions of AB 1546 take effect January 1, 2027. AB 1685 and AB 1687 do not become operative until January 1, 2031.
None of the four changes the rule that matters most for Marcus.
Vehicle Code 23136 makes it unlawful for anyone under 21 to drive with a blood alcohol content (BAC) of.01% or greater
. The new laws are aimed at repeat offenders, but one of them changes what follows a first plea deal.
Do these new laws even apply to a 16-year-old?
Most of them only matter after a second or third offense. That's why parents shouldn't skip them.
Under AB 1546, a third DUI conviction within 10 years would be considered a "wobbler," or an offense that prosecutors can decide to charge as a felony or misdemeanor.
A 10-year window is long. A conviction at 19 can still count when that driver is in their late twenties.
Gavin Newsom, Governor of California, said in a statement reported by AOL News that
"Getting behind the wheel when you are impaired is inexcusable"
. The word that matters is impaired, not drunk. Under-21 rules don't wait for visible impairment, and this package shows Sacramento is still adding consequences, not easing them.
There's also a financial side. Under the Vehicle Code, a parent's liability as the person who signed the license application
limits liability to: $15,000 for injury to or death of one person per accident; $30,000 for injury to or death of all persons per accident; and $5,000 for property damage per accident.
That cap covers only part of a parent's exposure.
Why does it matter which car my teen drives, and when?
Two teens with the same license can carry very different risk. The car, the hours and the passengers all change it.
Start with the calendar. During the first year,
as a provisional driver, you cannot drive between 11 p.m. And 5 a.m. During the first 12 months you have your license.
Teens also can't drive
with passengers under 20 years old, unless your parent or guardian or other California-licensed driver (at least 25 years old) rides with you.
Late nights and a car full of friends are exactly where alcohol shows up, and the law keeps both off the table for that first year.
All provisional license restrictions automatically end when a driver turns 18, if they have not held the license for 12 months.
That makes a seventeen-year-old who just got licensed a different case from a sixteen-year-old.
Next, whose car is it? The person who signed the application carries one kind of liability. Ownership adds another.
Under California Vehicle Code §17150, the owner of a vehicle is liable when a teen drives it with express or implied permission, if that owner is not the parent who cosigned the license.
If the car Marcus drives is titled to Teresa, she's exposed both ways.
Then there's the roadside test.
California Vehicle Code § 23136(c) provides that any person under 21 who holds a driver's license is deemed to have consented to a PAS test.
Refusing doesn't help.
Refusing the PAS test as an underage driver triggers a one-year suspension independent of any other charge.
A teen who mostly drives to school in daylight and a teen with a closing shift at a Rancho Cucamonga restaurant face different odds. If you're curious how coverage rules keep changing, there's a short piece on recent shifts in coverage worth a look.
What would one bad night cost our family?
Start with the license.
Drivers under 21 face a one-year suspension at a 0.01%+ result under the zero-tolerance law (Vehicle Code §23136).
That means a year of parents covering every school drop-off, practice and job shift. Deadlines are tight, too.
If you do not request a hearing within 10 days of the citation, the one-year suspension becomes automatic.
A crash costs much more. Since January 1, 2025, California's minimum has been
$30,000 bodily injury per person, $60,000 per accident and $15,000 property damage
. A $15,000 property damage limit can run out after one collision with a newer SUV. Injury claims go higher fast. When damages pass the auto policy's liability limits, a personal umbrella policy may pay above them, depending on its terms. That gap is real for any household with a new driver, and it's the honest case for umbrella liability.
What should I check before handing over the keys?
Get the license issue date in writing. The 12-month restrictions start from that date, not from the permit. Keep a copy with the registration.
Photograph the car on all four sides before Marcus takes it out alone, and keep the maintenance records in one folder. If there's ever a dispute about damage, dated photos settle it quickly. If you're buying a used car for your teen, ask the dealer for the full service history. If it's financed, ask the lender what coverage the loan requires and whether the balance could exceed the car's value. Ask a repair shop to check the tires and brakes before your teen starts driving the freeway alone.
Then talk about money with your teen. The post on teaching teens financial protection is a good place to start that conversation.
What warning signs shouldn't I ignore?
Pay attention to a teen who keeps coming home just before 11 p.m. Or always seems to have a friend riding along. Those patterns break the first-year rules before anything else goes wrong. Low readings matter too.
The threshold is so low that even trace amounts of alcohol from cough syrup, mouthwash, or certain medications can trigger a violation.
Make it a house rule to check medicine labels before driving.
Have a backup plan before you need one. Agree on a pickup rule: your teen calls, you come, and the questions wait until morning. Many Ontario families have talked through similar family coverage questions at local gatherings. Keep a list of two adults over 25 who can drive if you can't.
How do prepared families recover when something goes wrong?
Families who've planned ahead can respond quickly when something happens. They know where the registration is, they have dated photos, and they know the 10-day hearing deadline exists. Preparation also prevents trouble. A car with good tires and a record of regular service is less likely to leave a sixteen-year-old stranded on the 60 at night. A teen who knows the 0.01 rule well can explain to a friend why they're not driving after the party.
One thing to do before New Year's
Find your teen's license issue date, add twelve months and put that date on the family calendar. Then sit down together and read the DMV's provisional rules out loud. It takes about fifteen minutes. Your teen hears the rules from you, and you both know the date when the late-night and passenger limits end.
Common Questions
Which California DUI laws start January 1, 2027?
SB 907, known as Braun's Law, and AB 1546 take effect January 1, 2027.
AB 1685 (3 DMV points for gross vehicular manslaughter while intoxicated) and AB 1687 (six-year license loss for an injury DUI with four or more priors) do not take effect until January 1, 2031.
What does Braun's Law change for a first-time offender?
SB 907 requires a court to give a Watson advisement when a defendant pleads guilty or no contest to a different or lesser offense substituted for an alleged Vehicle Code section 23152 DUI.
So even when a DUI charge is pleaded down to a lesser offense, the driver gets a formal warning on the record. That warning can matter if there's ever a second case.
What is the legal alcohol limit for drivers under 21 in California?
It's 0.01 percent, not the 0.08 percent adult limit.
California's zero-tolerance law requires DMV to suspend for one year any driver under age 21 with a BAC of.01% or more as measured by a preliminary alcohol screening test, or who refuses or fails to complete the test.
Am I liable if my 16-year-old causes a crash?
If you signed the license application, yes, up to statutory caps. If you also own the car, you can be liable as the owner. A parent who signed
may seek to terminate this liability by applying to the Department of Motor Vehicles for cancellation of the minor's license under California Vehicle Code Section 17711.
Protecting Your New Driver With the Right Coverage
Adding a sixteen-year-old to your auto insurance is about more than paying a bigger bill, because the right liability limits, uninsured and underinsured motorist coverage, and medical payments coverage may decide how much one bad night costs your family. At Farmers Insurance - Young Douglas, our Ontario agents go through your household policy line by line with you, explain how adding a teen driver affects collision and complete coverage, and point out whether gap coverage fits a financed car. We also look at whether a personal umbrella policy makes sense for your family, since a parent who signs the license application or owns the car can face claims larger than a standard auto limit. When you're ready, we'd be glad to review your current coverage with you before your teen's first solo drive of 2027.
Sources:
- California Legislative Information. "Vehicle Code Section 23136." California Legislature. leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=VEH§ionNum=23136
- Barba Law. "California's New DUI Laws: What Drivers Need to Know." Barba Law, 2026. barbalawyer.com/californias-new-dui-laws-what-drivers-need-to-know/
- Dominguez Firm / DK Law. "What Are the Teen Driving Laws in California?" DK Law. dklaw.com/the-fine-print/what-are-the-teen-driving-laws-in-california/
DISCLOSURE: This article may feature independent professionals and businesses for informational purposes. Farmers Insurance - Young Douglas collaborates with some of the professionals mentioned; however, no payment or compensation is provided for inclusion in this content.