SBAS Standards to Operations Evidence Ladder

Purpose

This note defines the evidence ladder required before a core SBAS statement can become an operational aviation statement.

It is a routing note, not an operational approval document.

Layer	Question	Primary owner in this KB	Evidence family
1. Standards concept	What does the standards family define or constrain?	SBAS Standards Source Matrix	Annex 10, DO-229, Doc 9849, procedure-design source notes
2. Service definition	What does the provider state it broadcasts or supports?	Source - SBAS Service Providers and child notes	official provider service definitions/status/performance publications
3. Receiver capability	What can the approved receiver process and present?	SBAS Receiver Modes and Annunciation	MOPS and article-approval source families
4. Procedure design	What type of procedure can be designed?	procedure-design source notes and aviation pages	PANS-OPS/PBN and state design material
5. Procedure publication	Is a procedure published for a specific runway and cycle?	SBAS Operational Validation Dashboard	AIP/AIS/procedure database evidence
6. Aircraft/operator authorization	May this aircraft/operator fly it?	SBAS Operational Validation Dashboard	aircraft, avionics, operator, and regulator evidence
7. Current operational use	Is it usable now under current status and contingencies?	operational validation dashboard and source-specific notes	current service, NOTAM/status, AIP, operator, and procedure evidence

A claim can move upward only when the next evidence layer is explicitly sourced. Lower layers do not automatically prove higher layers.

Treating Annex 10 or DO-229 as proof that a state has published procedures.
Treating a service-provider page as proof that aircraft and operators are approved.
Treating an AIP procedure as proof that all SBAS-capable aircraft may fly it.
Treating a receiver capability label as a service-performance claim.

SBAS Core Claim Routing owns core claim ownership.
SBAS Operational Validation Dashboard owns operational escalation and validation status.
This note owns the evidence ladder between standards and operations.