Expanded Safety Reference Material (E-SRM)

air traffic controller overseeing multiple computer screens

The EUROCONTROL Innovation Hub's safety team has released its Expanded Safety Reference Material (E-SRM) which is a safety assessment method expanded to address U-space and safety support assessment.

The E-SRM could be used for the following types of assessment:

  • safety/safety support assessment of changes to the functional system, as required by Regulation (EU) 2017/373;
  • safety assessment for U-Space Airspace Risk assessment, as required by Regulation (EU) 2021/664;
  • safety support assessment of changes to the functional system for U-space services, as required by Regulation (EU) 2021/664;
  • Digital European Sky programme (SESAR3) projects;
  • EUROCONTROL Generic Safety Cases.

The E-SRM has been reviewed by EASA and a letter has been issued identifying the advantages of the methodology and some limitations associated to the E-SRM like the assessment limited to the pre-industrial and standardisation phase.

This document is the fruit of several years of work to define a methodology which could be used for several types of application/project (ATM/ANS, U-space) and where the results could be used more easily by “implementers” considering the latest regulations ((EU) 2017/373 for ATM/ANS and (EU) 2021/664 for U-space).


Expanded Safety Reference Material (E-SRM) Core Document
Guidance to Applying the Expanded Safety Reference Material (E-SRM)
Accident Incident Models (AIM) release 2023