AZ SB1224

Amends tail lamp requirements to specify that each tail lamp must emit red light visible from 500 feet to the rear, rather than just requiring "the" tail lamp to be visible.

Modifies stop lamp requirements to specify that every stop lamp on a vehicle must meet the requirements of section 28-939, rather than just requiring "a" stop lamp.

Clarifies signal lamp and device standards to specify that each lamp must be maintained in good working condition and not project glaring light, using singular "each lamp" instead of plural "lamps."

Updates language in section 28-939 regarding tail lamps and stop lamps to ensure consistent grammatical reference to individual lamps on vehicles.