Autonomy Handoff Integrity
Objective
Prevent ambiguous or contested control state during handoff between autonomous, human, and reduced- autonomy modes.
Control / requirement
Handoff requires explicit, authenticated confirmation of which controller holds command authority at any instant, preventing a state where both or neither believe they are in control.
Applicability
All systems supporting more than one control mode with a handoff path between them.
Expected evidence
Handoff protocol design; handoff test records covering simulated ambiguous-control scenarios. [T3]
Assurance expectation
Test evidence specifically covering edge-case handoff timing (e.g., simultaneous claim, dropped claim) rather than only the nominal handoff path.
Dependencies
PAI-SF-HOV-001 (Domain 6) for the human-side end of the handoff.
Exclusions
Not applicable to fully autonomous systems with no human handoff path at all.
Maturity / conformance relevance
Expected at all conformance levels for systems supporting mode handoff.
Ecosystem relationship
Provides handoff-failure incident categories for UAIF™; handoff ambiguity during an active incident is a AI- IRF™ investigation concern.