Version 3 Data Dictionaries & XSD
The NEMSIS/NHTSA Version 3 Dataset provide 596 data elements that can be implemented by an EMS system. National data elements are defined as those that should be collected for the National EMS Database, but additional data elements should be considered for use at the state and local levels depending on each state or local EMS system’s need.
NEMSIS Version 3.5.0.230317CP4
Data Dictionary (v3.5.0):
v3.5.0 Change Log (pdf)
Dataset Schemas (v3.5.0):
v3 DEM/EMS/State XSDs (zip)
v3 EMS (PCR/Event) API (web)
v3 DEM API (web)
v3 State API (web)
Additional Documents (v3.5.0):
v3 Element Details (csv)
The “v3 Summary of Changes” document is now located on the v3.5 List of Resources page and named “v3.5.0 Elements Summary”
NEMSIS Version 3.4.0.200910CP2
Dataset Schemas (v3.4.0):
v3 DEM/EMS/State XSDs (zip)
Additional Documents (v3.4.0):
v3 Element Details (csv)
NEMSIS Version 3 Archive
Previous versions of the NEMSIS Version 3 standard can be found on the NEMSIS Version 3 Downloads “Archive” page
