Frequently Asked Questions

1. What is NEMSIS?

Answer: NEMSIS is the official EMS Data Collection Standard for EMS agencies, it is an Information Systems Compliance Architecture which allows the transfer of data between systems, and it is the National EMS Database.

2. Why is NEMSIS needed?

Answer: We need NEMSIS for consistent definitions for elements used in EMS and pre-hospital care settings.

3. Who does NEMSIS impact?

Answer: NEMSIS impacts all EMS clinicians and agencies across the continental United States and associated Territories.

4. How are NEMSIS data useful?

Answer: NEMSIS data are useful for evaluating and improving patient care, improving EMS curriculums, accessing resources for natural disasters and mass casualty incidences, and much more.

5. What is Version 3?

Answer: The NEMSIS Version 3 Data Standard is the latest standard that impacts EMS agencies, States, Territories, and software developers. It involves new data elements to be collected by EMS clinicians, a new compliance process for software developers or States who submit data to NEMSIS, and new reporting tools for all who are interested in EMS data.

6. Who may acquire a NEMSIS account to access state-level data?

Each state is allowed four NEMSIS User Accounts. Those accounts are assigned to the following individuals: EMS Data Manager, EMS Medical Director, EMS Director, and the EMSC Program Manager. Request a user account here:

If you are not a state-level EMS official and need to request data, please consider the following options for obtaining state-level data:

1. Visit the Emergency Medical Services website for the state of interest and review the procedures for acquiring access to state-level data.

2. Contact the state EMS office, explain the purpose for needing the data and make your request directly to the EMS Data Manager. Contact information for EMS Data Managers can be found on the NEMSIS website ( Click on the state of interest on the national map.

Please see NEMSIS User Account policy here:

If you have questions, please submit a Help Desk Ticket at