How to prepare for Bexar County emissions testing

Catch up quick: Bexar County will become the 18th Texas county to require emissions testing after failing to meet federal air quality standards.

How it works: If your vehicle fails, get it repaired and return to the same inspection station within 15 days for a free retest.

• Go somewhere else or wait longer than 15 days, and you'll have to pay for another test.
• Find an inspection station here.

By the numbers: The initial emissions test costs a total of $26, including a state fee.

What's next: Official Inspection Station is offering a free prescreening on Aug. 27 at its 10480 Culebra Road location that can flag emissions problems.

• Drivers whose vehicles don't pass get the diagnostic codes to take to a mechanic.
• Find an appointment here.