Commission on Accreditation of Ambulance Services (CAAS)

Setting the Standard in Mobile Healthcare

CAAS defines the standard for quality mobile patient care through national, consensus-based standards and a proven accreditation process—built to support EMS organizations of every size and service model.

Start Your Accreditation Journey Explore Standards Version 4.0 Access Educational Resources

Find the Information That Fits Where You Are

CAAS supports agencies at every stage—exploring, applying, and maintaining accredited status.

Looking for new and remounted ambulance standards? Visit the CAAS Ground Vehicle Standard (GVS) site →

CAAS Standards Version 4.0

The ANSI-approved national standard for EMS accreditation—organized to align with how agencies operate and lead.

Learn More about Standards 4.0 Version 4.0 Support Resources
CAAS Standards Version 4.0

The CAAS Accreditation Pathway

A clear, supportive process designed to help agencies move from self-assessment to successful accreditation.

  1. 1Prepare & self-assess
  2. 2Build your application & documentation
  3. 3Submit your application and fee
  4. 4Off-site review & feedback
  5. 5On-site review & feedback
  6. 6Commission decision
Understand the Process On-Demand Education
EMS cot loading at sunset

CAAS Accredited Agencies Lead the Way

CAAS-accredited organizations operate in diverse environments and service models.

Images represent a range of accredited agencies and operational settings.

Resources & Education

Tools and training to support your team—whether you’re exploring, applying, or renewing.

Standards & Application Access the standards, application tools, and submission guidance. On-Demand Education Training and tools for coordinators and leadership. Seminars & Webinars Join live learning and updates from accredited agencies. Ask CAAS Get direct support from CAAS staff—questions welcome.

Already accredited? Log in to CAAS Connect for accredited-agency resources.

CAAS Ground Vehicle Standard (GVS)

Sets nationally recognized, consensus-driven requirements to ensure new and remounted ambulance vehicles meet the critical standards for safety, performance, and patient care.

Visit the GVS Site →
CAAS Ground Vehicle Standard Version 4.0