• Any special safety procedures needed to assure safe operation, testing, and maintenance, including emergency procedures; 

• Anticipated operating environments and any specific skills required for safe operation, testing, maintenance, transportation, or disposal; and 

• Any special facility requirements or personal equipment to support the system. 

## 5.5 System Safety Engineering 

This section must include a description of or reference to: 

• The safety criteria and methodology used to classify and rank safety hazards, 

• The analyses and tests performed to identify safety hazards inherent in the system, and 

• Discussions of the management/engineering decisions affecting the residual risk at a system level. 

## 5.6 Results of Analyses and Tests (and Other Verification Activities) 

This section summarizes the results of the analyses performed and the tests conducted. It must contain a compliance assessment and sufficient evidence to demonstrate compliance with development assurance requirements (like those of RTCA 3  DO-278A, Software Integrity Assurance Considerations for Communication, Navigation, Surveillance and Air Traffic Management (CNS/ATM) Systems ). 

## 5.7 Hazards Identification 

This is a narrative summary of the total number of safety hazards identified and a breakdown of the high-, medium-, and low-risk hazards. It must include a list of all hazards (by sub-system or major component level) that have been identified and considered since the inception of the program. This summary must refer to the applicable sections of an SRM document or describe: 

• The safety hazards identified, recommended safety requirements, and actions already taken to eliminate or control the identified hazards; 

• How safety requirements associated with the identified hazards affect the probability of occurrence and the severity level of the potential accidents; and 

• The residual risk that remains after the safety requirements are applied or for which no controls could be applied. 

This section must also include a plot on the safety risk matrix (found in the SMS Manual) showing the residual risk based on the verification of the corresponding safety requirements. 

## 5.8 Safety Requirements Verification Table 

The Safety Requirements Verification Table (SRVT) is an evolving list of safety requirements that starts with a system’s first safety assessment. It lists the safety requirements that have been verified and the status of requirements not yet verified (including information on when they will be verified). 4 The PO must ensure all safety requirements are captured within the SRVT. 

