About CAAS
What is the Commission on Accreditation of Ambulance Services (CAAS)?
CAAS is an independent, nonprofit accrediting agency dedicated to promoting excellence in mobile patient care. Since 1990, CAAS has developed and maintained the nationally recognized standards for ambulance services and medical response systems, ensuring that EMS organizations operate with safety, efficiency, and accountability. Accreditation verifies that your organization meets or exceeds essential, consensus-driven standards for administration, operations, and clinical performance.
Which EMS organizations are eligible?
All ambulance systems are eligible for three-year accreditation, including private, public, fire department, hospital-based, third-service, and not-for-profit providers.
Our History
How did CAAS begin?
In 1982, the American Ambulance Association convened a national workshop that identified the need for high-quality EMS standards. After eight years of development and collaboration among national EMS experts and professional organizations, CAAS was incorporated in 1990 as an independent commission to accredit ambulance services using those standards. Founding representation included the American Ambulance Association, International Association of Fire Chiefs, National Association of EMTs, National Association of EMS Physicians, National Association of State EMS Officials, and the Emergency Nurses Association.
Today, more than 170 agencies across the U.S., Canada, and the Caribbean are accredited, with many more actively preparing applications.
Impact on Care, People & Safety
Does accreditation improve patient care?
Yes. Accredited agencies demonstrate continuous improvement through documented procedures, performance indicators, and medical oversight. Agencies track trends, act on findings, and engage the Medical Director across protocols, training, equipment, and clinical review.
How does accreditation affect our people?
Accreditation strengthens culture—clarifying expectations, reinforcing fair and consistent practices, and elevating pride. It also enhances recruitment and retention by signaling a commitment to quality and safety.
Do accredited agencies operate more safely?
Yes. Version 4.0 adds deeper requirements for just culture, adverse event reporting, sentinel event analysis, ongoing driver monitoring, hazard vulnerability analysis, and loss control—protecting patients, providers, and the organization.