Home - Explore Emergency Services - Key Largo EMS Keepers of the Key FOR EMERGENCIES DIAL 911 Keepers of the Key FOR EMERGENCIES DIAL 911 Your Trusted Emergency Medical Responders Key Largo Volunteer Ambulance Corp. The mission of the Key Largo Volunteer Ambulance Corps is to provide excellent professional and compassionate medical care for our community. KLVAC responds to more than 1800 ambulance calls a year with typically three ALS Advanced Life Support ambulances staffed with a minimum of one paramedic and one EMT 24 hours a day365 days a year. On October 8 2005 the Key Largo Volunteer Ambulance Corps celebrated 59 years of service to the Key Largo and surrounding communities.