Note: In many areas, volunteer responders use blue or red lights. Green is less common for this purpose.
Organ Transport Vehicles
What they do: Transporting donor organs for transplant.
Why green lights? Time is critical, but not a “lights-and-sirens” emergency in most cases. Organ transport vehicles often coordinate with law enforcement for escorts.
Blood and Lab
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Sample Transport
What they do: Courier services transporting blood, lab samples, or medical supplies between facilities.
Why green lights? Time-sensitive but not life-threatening. A delay could affect test results or treatment schedules.
How You Should Respond to Green Lights
Let me give you clear, practical guidance.
Do:
Yield if it’s safe. Move to the right and allow the vehicle to pass.
Be aware. Green lights mean the driver has a time-sensitive patient or medical cargo.
Stay predictable. Don’t brake suddenly or swerve. Just move over smoothly.
Don’t:
Don’t panic. Green
