IN CAB AND AIR BRAKES CDL TEST (California ) See description for 2020 changes

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* Cut out no higher than 140 psi (NO LONGER REQUIRED)
* Cut in no lower than 100 psi (NO LONGER REQUIRED)

Applied air leakage no more than 4 psi in one minute
Low pressure warning between 55-75 psi
Spring brakes between 20-45 psi

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