VESA (Valid Emergency Services Authority)

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VESA (Valid Emergency Services Authority) is the organization that is the root source of all certificates used for NG9-1-1. It is responsible for identifying and issuing certificates either directly to end using entities or through delegate credential authorities. It is responsible for ensuring that any delegate credential authority that it identifies is properly qualified and operating with sufficient security and legitimacy to perform this role. Where the VESA issues certificates directly to end users, it also has the responsibilities of a delegate credential authority in those cases.