What Is a DMV Renewal Smog Check?

A DMV renewal smog check is the biennial emissions test required by the California Department of Motor Vehicles to renew your vehicle registration. Every two years, most gasoline and diesel vehicles must pass a smog inspection. Your DMV renewal notice will indicate whether a smog check is required and whether you need to visit a STAR-certified station.

When Do I Need a DMV Renewal Smog Check?

The DMV sends renewal notices approximately 60 days before your registration expires. If your notice says “smog certification required,” you must complete the test before you can renew. Your smog certificate is valid for 90 days from the test date, so do not wait until the last minute. We recommend scheduling your smog check as soon as you receive the notice.

Which Vehicles Are Exempt from Smog Checks?

  • Vehicles that are 8 model years old or newer (these are exempt from biennial testing but still need a smog check for change of ownership)
  • Fully electric vehicles (no gasoline engine)
  • Natural gas vehicles with a GVWR over 14,000 lbs
  • Motorcycles
  • Trailers
  • Diesel vehicles model year 1997 and older

How Much Does a DMV Renewal Smog Check Cost?

At Poway Smog Station, a DMV renewal smog check costs $39.75 with our $10 OFF coupon. The $8.25 DMV certificate transfer fee is paid separately. Total out-the-door cost with coupon: $48.00. We accept cash, credit, and debit cards.

How Long Does a DMV Renewal Smog Check Take?

A typical smog check takes 15 to 20 minutes. Results are transmitted electronically to the DMV the same day — you do not need to bring paperwork to the DMV. Once we submit your passing certificate, you can complete your registration renewal online at dmv.ca.gov.

Get Your DMV Renewal Smog Check Done Today

Poway Smog Station is a STAR Certified Test Only station (BAR License #47968), accepted for all DMV renewal and DMV-directed smog checks. We are located at 13965 Poway Rd, Poway, CA 92064. Open Monday–Friday 8:00 AM – 5:00 PM, Saturday 8:00 AM – 4:00 PM, Sunday 10:00 AM – 3:00 PM. No appointment needed — call (858) 486-7664 or walk in.