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Texas
Katy

Emissions Testing in Katy, Texas

Find 12 licensed smog check stations in Katy. Browse test-only centers, STAR-certified locations, and shops offering registration renewal inspections. Requirements in Texas vary by vehicle type and model year.

12 stations
Katy, TX
View Texas requirements
PL

Piston Lube Center - Katy

5.0 · 20 reviews
Oil change service · 6130 N Fry Rd, Katy, TX 77449

Piston Lube Center offers emissions testing and vehicle inspection in Katy, Texas. View hours and details.

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
A

Autotechtronics

4.9 · 197 reviews
Auto repair shop · 5330 E 5th St, Katy, TX 77493

Autotechtronics provides emissions testing and vehicle inspection services in Katy, Texas. Check hours and learn more ab...

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
SA

Sonic Auto

4.9 · 86 reviews
Auto repair shop · 21925 Franz Rd #503, Katy, TX 77449

Sonic Auto offers emissions testing and vehicle inspection in Katy, Texas. View hours and details.

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
A

Autocheck

4.9 · 882 reviews
Auto repair shop · 20825 Kingsland Blvd, Katy, TX 77450

Autocheck provides emissions testing and vehicle inspections in Katy, Texas. View hours and details for reliable emissio...

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
C

CincoAuto

4.8 · 1,482 reviews
Auto repair shop · 25827 Cinco Ranch Blvd, Katy, TX 77494

CincoAuto provides emissions testing and vehicle inspection services in Katy, Texas. Check hours and learn more about th...

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
FT

First Tire & Automotive

4.8 · 441 reviews
Auto repair shop · 23450 Highland Knolls Dr, Katy, TX 77494

First Tire & Automotive offers emissions testing and vehicle inspection in Katy, Texas. View hours and details.

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
AC

Auto Check

4.8 · 672 reviews
Auto repair shop · 2205 S Mason Rd, Katy, TX 77450

Auto Check offers emissions testing and vehicle inspection in Katy, Texas. View hours and details.

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
VI

Valvoline Instant Oil Change

4.8 · 1,037 reviews
Oil change service · 23711 Katy Fwy, Katy, TX 77494

Valvoline Instant Oil Change offers emissions testing and vehicle inspection in Katy, Texas. View hours and details.

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
KV

Katy Vehicle Inspection

4.7 · 532 reviews
Vehicle inspection service · 2900 Katy Hockley Cut Off Rd #A502, Katy, TX 77493

Katy Vehicle Inspection offers emissions testing and vehicle inspection in Katy, Texas. View hours and details.

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
VI

Valvoline Instant Oil Change

4.6 · 487 reviews
Oil change service · 1701 Spring Green Blvd, Katy, TX 77494

Valvoline Instant Oil Change offers emissions testing and vehicle inspection in Katy, Texas. View hours and details.

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
JL

Jiffy Lube Oil Change

4.5 · 638 reviews
Oil change service · 4817 FM 1463, Katy, TX 77494

Jiffy Lube Oil Change offers emissions testing and vehicle inspection in Katy, Texas. View hours and details.

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis
AG

Auto Garage Katy

4.4 · 328 reviews
Auto repair shop · 3004 N Fry Rd #100, Katy, TX 77449

Auto Garage Katy provides emissions testing and vehicle inspection in Katy, Texas. View hours and details.

emissions testing Vehicle Inspection OBD-II Diagnostics Check Engine Light Diagnosis

City Guide

Emissions Testing in Katy, Texas

Finding a reliable place for emissions testing or a smog check in Katy is easier than ever. Our directory lists 12 licensed and verified emissions testing stations in the city, including STAR-certified and test-only centers where required. Whether you're renewing your registration or completing an out-of-state transfer, this page helps you quickly locate nearby inspection facilities and understand what applies in Texas.

Do Vehicles in Katy Need an Emissions Test?

Most drivers in Katy follow the same rules set by Texas. Requirements vary based on vehicle age, fuel type, and county. If you're unsure whether your ZIP code or vehicle model year requires a test, use this directory to browse local stations or review our state-specific testing requirements.

Types of Smog Check Services Available

  • Standard emissions tests for gasoline vehicles
  • OBD-II inspections for 1996+ model years
  • Tailpipe testing for older vehicles where required
  • Diesel emissions testing
  • Hybrid and electric vehicle smog checks
  • Registration renewal support
  • Test-only or STAR-certified inspections (state dependent)

Each listing includes the station's address, contact information, operating hours, and service notes to help you choose the right location.

Smog Check Tips for Katy Drivers

Before heading to a testing center in Katy, make sure:

  • Your check engine light is off
  • Your vehicle has completed recent drive cycles
  • The gas cap is properly sealed
  • The engine is fully warmed up
  • You have your registration and ID

Following these steps greatly increases the chance of passing on the first attempt.

Why Use This Directory?

Drivers in Katy rely on this directory because it provides a complete list of verified emissions testing stations, map-based navigation for quick lookup, accurate state-updated requirements, support for gasoline, diesel, hybrid, and electric vehicles, and clear explanations of exemptions and frequency rules.

View Texas Requirements

Frequently Asked Questions About Emissions Testing in Katy, Texas

Get answers to common questions about smog checks, testing requirements, and finding the right station in Katy.

You can use this directory to find licensed emissions testing and smog check stations in Katy. Browse the listings above to see addresses, contact details, and services offered, then choose the station that's most convenient for your part of the city.
It depends on Texas's emissions testing program, your registration ZIP code, and your vehicle's model year and fuel type. Some areas of Texas require testing, while others do not. Check your Texas state page in this directory or your DMV's website to see if your address in Katy is in a testing area.
Most emissions programs require testing every one or two years, usually tied to registration renewal. Some vehicles are tested more frequently, and others are exempt for the first few model years. Use the Texas state page to see the current 2025 schedule for your vehicle type and registration area.
Prices vary by station and vehicle, but most emissions tests in Katy fall within the typical range for Texas. Many stations list pricing by phone or on their website, and some offer coupons or discounts. Use the listings above to contact a station directly for current pricing.
Requirements depend on vehicle type (gasoline, diesel, hybrid, electric), model year, and weight, as well as where your vehicle is registered in Texas. In many states, fully electric vehicles are exempt, newer vehicles are temporarily exempt, and certain older or specialty vehicles may have different rules. Check the Texas state page for the latest 2025 requirements.
Most stations in Katy ask you to bring your current registration or renewal notice, a valid photo ID, and proof of insurance if required by Texas. Make sure your vehicle is warmed up and the check engine light is off before you arrive.
If your vehicle fails, the station will provide a report showing the reason for failure (such as stored OBD-II codes or high tailpipe readings). In most programs, you must complete repairs and pass a retest before renewing your registration. Some states offer repair assistance, cost caps, or waivers. Details are listed on the Texas page in this directory.
In some states, certain vehicles are directed to specific station types (such as STAR or test-only centers). Unless your renewal notice or DMV instructions say otherwise, you can usually choose any licensed station in Katy. If you're unsure, ask the station when you call or check the instructions on your renewal notice.

Can't find what you're looking for? Contact our customer support team