STAR-certified and designated test-only by the California Bureau of Automotive Repair, Auto Smog Center in La Mesa runs emissions inspections from Suite 5 at the Via Mercado automotive complex. The electronic certificate transfer uploads passing results directly to the DMV registration database, completing the compliance component of a renewal package that pairs with current auto-coverage documentation from providers like Flagship Auto Insurance in the La Mesa area. As a test-only facility, the station performs no mechanical repairs, ensuring its pass/fail determinations remain free of repair-revenue conflict — vehicles that fail are referred to separate BAR-registered repair shops for corrective work. The facility handles change-of-ownership transfers, pre-sale inspections for used-vehicle lots, and DMV-directed STAR retests for vehicles with prior failures or gross-polluter history, with used-vehicle sellers often pairing the STAR certificate with cosmetic preparation from mobile providers like Scrubs Auto Detailing San Diego before listing. The analyzer's five-gas bench measures tailpipe hydrocarbons, CO, CO2, NOx, and O2 at parts-per-million resolution while verifying catalytic converter efficiency and evaporative-system purge-flow integrity during the BAR-97 ASM or TSI test cycle.