Smog Check Chula Vista at 902 Third Avenue has operated at the Third Avenue and L Street intersection since 1995, running STAR-certified emissions inspections on gasoline, diesel, and hybrid-electric powertrains. The station's nearly three-decade tenure on Third Avenue places it within Chula Vista's walkable commercial core, and drivers pairing a smog check with a routine fluid service visit Castrol Premium Lube Express in the same Chula Vista maintenance corridor. An online self-serve appointment portal at the station's website lets customers schedule inspections for DMV registration renewals, change-of-ownership transfers, and out-of-state vehicle certifications without a phone call. Used-vehicle sellers preparing a car for private sale coordinate the smog certificate alongside a pre-sale detail from Pro Vision Mobile Detail to present a road-ready package to prospective buyers. The BAR-97 analyzer platform runs OBD-II readiness-monitor verification, tailpipe gas analysis measuring HC, CO, CO2, O2, and NOx in parts per million, and diesel-opacity testing using a snap-acceleration protocol calibrated to California's enhanced-area inspection standards.