To develop safety assessments with these broader scopes, the ANG NextGen Investment Portfolio Leads must: 

• Ensure that capabilities under consideration are analyzed early (i.e., prior to the IARD) for possible safety ramifications due to integration with other NAS components; 

• Identify how the magnitude of the safety issues/concerns identified early in capability development may impact the way the capability is considered for further investment and development; 

• Support the transition of the capability to an implementing organization within the ATO, resulting in an SMS-compliant Operational Safety Assessment (OSA) prior to the IARD; and 

• Gather data on, understand, and articulate the safety issues/concerns as a capability evolves and moves through the acquisition lifecycle. 

ANG has developed three SRM tools: 

• An  Integrated System Safety Assessment (ISSA)  assesses changes in safety risk resulting from the implementation of NextGen OIs. The ISSA Report serves as a foundational safety document that will feed into other safety analysis activities through the course of the program lifecycle process. 

• A Service-Level Safety Assessment  is a means to assess current safety risk and provide a baseline for subsequent changes to the NAS. 

• The Hazard Enterprise Architecture Traceability (HEAT)  tool provides an interactive platform that allows users to search for available safety data via the FAA EA element connected to the subject of their safety analyses/assessments. The HEAT tool is located in the NAS Systems Engineering Portal. 

## 4.3 Office of Aviation Safety 

The Office of Aviation Safety includes the Air Traffic Safety Oversight Service (AOV), which oversees the SRM process for system-oriented safety standards related to the acquisition and implementation of new systems (including modernization/upgrades of legacy NAS systems) in accordance with the current versions of FAA Order 1100.161, Air Traffic Safety Oversight , and AOV Safety Oversight Circular (SOC) 09-11,  Safety Oversight Standards. 4 It is important to note that AOV must approve any mitigations identified in an SRM document that lower the safety risk of hazards initially identified as high risk before those mitigations may be implemented and the system(s) fielded. 

## 4.4 Safety Collaboration Team 5 

The FAA Safety Collaboration Team (SCT) was appointed by the FAA SMS Committee 6  to serve as the technical advisory body to the committee and to facilitate the safety risk 

