Texas: Green lights indicate non-emergency medical transport. No legal requirement to yield, but courteous drivers do.
New York: Green lights are used by some medical transport services. Same courtesy rules apply.
Important: Check your local laws. Some states have specific regulations about yielding to green lights.
Who Uses Green Lights?
Let me list the most common users.
Non-Emergency Medical Transport (NEMT)
What they do: Transport patients to dialysis appointments, chemotherapy, physical therapy, doctor’s visits, and other scheduled medical treatments.
Why green lights? These trips are time-sensitive but not life-threatening. The patient may be weak, elderly, or in a wheelchair. A delay could mean missing an appointment, but it won’t mean life or death.
Examples: Wheelchair vans, ambulettes, medical taxis.
Volunteer Ambulance Services
What they do: Volunteer EMTs and paramedics responding to emergencies in their personal vehicles.
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Why green lights? Volunteers may be “on call” and need to get to the ambulance station or directly to an emergency scene. The green light alerts other drivers that they’re responding to a call.
