Holding STAR certification under BAR/ARD #290272, TJ Smog Check in Chula Vista runs California emissions inspections on gas, diesel, and hybrid vehicles from 3290 Main Street. The Test Only classification restricts the station to diagnostic testing without performing repairs, a regulatory firewall that manufacturer dealers including Toyota Chula Vista rely on for independent third-party verification during pre-sale and registration transfers. Bilingual technicians conduct inspections in English and Spanish, processing out-of-state vehicle registrations alongside standard biennial smog renewals for San Diego County residents. The testing queue handles BAR referee-directed vehicles, gross polluter retests, and fleet-compliance certifications — emission categories that pair with routine maintenance intervals at Jiffy Lube Oil Change on the same Main Street commercial spine. The station's BAR-97 analyzer measures tailpipe hydrocarbons, carbon monoxide, and nitrogen oxides while simultaneously verifying OBD-II readiness monitors across all mandated emission-control subsystems.