The safety policy belongs in all branches.
A Safety Management System (SMS) Safety Policy is still in a developing stage and new to most aviation service suppliers. Safety may have been implemented in several of the exploration and mining industries, but in aviation safety became the hit-and-miss approach. The fact that the majority of airlines operate without major accidents does not support that there are streamlined and effective safety operational processes in place. What this data of few accidents tells us is that there were few accidents. The data don’t tell any stories of how effective operational safety processes are.
A safety policy keeps the tracks lined up at all levels.
The top management is an SMS organization is the Accountable Executive (AE). Should an aviation organization not make the Safety Policy applicable to the AE, the organization does not have a Safety Management System in place, no matter what processes are implemented. At the opposite end, unless lower level personnel are included in the Safety Policy there is no SMS in place. A safety polity that is selectively implemented is not a valid policy and if not applicable to all, it’s applicable to none.
Safety in aviation must be viewed from a customer’s point of view and what safety risk the customer is willing to accept. All travelling customers only accept Zero Tolerance to Compromise Aviation Safety, which begins with the Safety Policy and have no ending, but continues on with human factors.