If your DMV renewal notice says “STAR Required,” you cannot go to just any smog station. You must visit a STAR-certified location. Many drivers in Monterey Park are confused about what this means and whether it applies to their vehicle.
Here is exactly how STAR smog checks work in California and how to know if you need one.
What Is a STAR Smog Check?
The STAR Program is part of California’s effort to improve emissions compliance. Certain vehicles are directed by the DMV to higher-performing inspection stations that meet stricter state standards.
These stations are monitored more closely for accuracy and consistency. If your vehicle is selected, you must complete your inspection at a STAR-certified smog station.
It is not optional.
How Do You Know If You Need STAR?
The easiest way to tell is by checking your DMV registration renewal notice. If it clearly says “STAR Required,” your vehicle must be tested at a certified STAR station.
If it does not mention STAR, you can typically go to any licensed smog station.
You can also check online through the DMV renewal portal, where it will indicate if STAR testing is mandatory.
Why Does the DMV Select Certain Vehicles?
The DMV may require STAR testing for several reasons:
The vehicle has a history of emissions issues
The vehicle type statistically has higher failure rates
Random selection for compliance monitoring
Previous test inconsistencies
This does not necessarily mean something is wrong with your car. It simply means your inspection must be performed at a STAR-certified location.
What Happens During a STAR Smog Check?
The inspection process is similar to a standard smog check, but STAR stations must meet tighter performance metrics and quality standards.
The inspection may include:
OBD diagnostic system scan
Visual inspection of emissions components
Verification of required emissions equipment
Functional checks as required by the vehicle’s model year
Results are transmitted electronically to the DMV once the vehicle passes.
How Long Does a STAR Smog Check Take?
Most STAR inspections in Monterey Park take between 15 and 20 minutes for newer vehicles. Older vehicles may take slightly longer depending on testing requirements.
At AB Smog Check and Repair, most drivers are in and out quickly with minimal wait time.
What If You Go to the Wrong Station?
If your vehicle requires STAR testing and you go to a non-STAR station, the inspection will not satisfy DMV requirements. You will have to redo the test at a certified STAR location.
This costs extra time and money, so always verify before starting.
How to Prepare for a STAR Smog Check
Before your appointment:
Make sure your check engine light is off
Drive the vehicle beforehand to warm the engine
Avoid disconnecting your battery prior to testing
Complete any recent repairs fully
If your battery was recently replaced, drive enough miles to reset readiness monitors before testing.
Why Choose AB Smog Check and Repair in Monterey Park
When your registration notice says STAR required, you need a certified station you can trust.
AB Smog Check and Repair provides:
STAR-certified inspections
Fast turnaround times
Electronic DMV certificate transmission
Clear pricing
Professional, experienced technicians
We serve Monterey Park, Alhambra, San Gabriel, Rosemead, and surrounding communities with efficient, compliant smog testing services.
If your DMV notice says STAR required, do not wait until your registration deadline approaches. Visit a certified STAR smog station in Monterey Park and complete your inspection quickly.
Understanding whether you need STAR testing prevents delays and unnecessary repeat inspections.
If you are due for a STAR smog check, AB Smog Check and Repair is ready to help you get it done right the first time.


