California BAR Smog Technician Practice Exam 2026

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards

From $12.50Unlock all

Session length

1 / 20

If an engine change is offered by the manufacturer for the same year and model, does it require a BAR Referee Label?

Yes, always

No, it does not require

When a manufacturer offers an engine change for the same year and model, it stays within the OEM’s certified configuration for that model year. The emissions certification data already accounts for that factory option, so no BAR Referee Label is needed. The Referee Label is reserved for modifications not covered by the factory certification, such as aftermarket swaps or engine changes across different years or models. So, if the engine change is a manufacturer option for the same year and model, it does not require the referee label.

Only if the engine change reduces emissions

Only for certain models