Organization Title


California EMS Information System (CEMSIS)


Hailey Pate

Program Coordinator

California EMS Information System

(916) 431-3742

How is CEMSIS Used?

When fully operational, it is estimated that CEMSIS will catalogue over 3 million EMS events per year. The data will be used to provide a robust, secure data warehouse for use by local EMS agencies, public health professionals, academic researchers, and the general public.

Examples of CEMSIS-supported activities will include:

  • Healthcare quality programs which monitor patient care outcomes
  • Evidence-based system management by local EMS agencies
  • Agency collaboration across jurisdictional boundaries
  • Local, regional, and state-level public health surveillance
  • Increased public awareness of emergency medical services in California

Data Submission Standards

  • EMSA #161: CEMSIS Data System Standards with code values [PDF]
  • CEMSIS XSD Version 2.2.1 (Corresponds to NEMSIS version)

EMS Data Committee

CEMSIS - Trauma

CEMSIS Trauma Data Dictionary [PDF]

Trauma Data – Minimum Inclusion Criteria [PDF]

Trauma Data Ad Hoc Committee


CEMSIS Trauma Validator

Rollout Meetings

2013: The EMS Authority held 5, one-day rollout meetings around the State to provide information on the CEMSIS Transformation.

  • September 5:  Marines Memorial Club, 609 Sutter Street, San Francisco, CA 94102
  • September 9: EMS Authority, 10901 Gold Center Drive, Rancho Cordova, CA 95670
  • September 11: AMR San Diego, 8808 Balboa Ave., San Diego, CA 92123
  • September 26: LA County EMS Agency, 10100 Pioneer Blvd., Santa Fe Springs, CA 90670
  • September 30: Kern County Emergency Operations Classroom, 2301 Panorama Dr., Bakersfield, CA 93306
  • October 9: Northern California Safety Consortium (NSC), 1932 Central Ave., McKinleyville, CA 95519
Grant Funding

State Traffic Safety Grant Funds EMS Data System [PDF]

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