# AMENDMENT 001 — Assumption Retirement Evidence Threshold

- **Artifact ID:** CHQ-PRS-2026-001-AMD-001
- **Version:** v1.0
- **Status:** RATIFIED / IN FORCE
- **Public record:** https://record.cybersecurityhq.com/doctrine/chq-prs-2026-001-amd-001
- **Machine-record SHA-256:** `2d53997d72a8ae9ca8f940c7da508e9f4de9d10ec46fa5792d04e43b5448f503`

## Complete structured record

```json
{
  "id": "CHQ-PRS-2026-001-AMD-001",
  "title": "AMENDMENT 001 — Assumption Retirement Evidence Threshold",
  "version": "v1.0",
  "issued": "2026-09-22",
  "status": "RATIFIED / IN FORCE",
  "doctrine_class": "EVIDENCE_RULE",
  "doctrine_scope": "SYSTEM",
  "governed_artifacts": [
    "Assumptions",
    "Assumption Register",
    "CHQ Position Record"
  ],
  "related_doctrine": [
    "CHQ-PRS-2026-001",
    "CHQ-RAT-2026-001",
    "CHQ-D-2026-ESG"
  ],
  "purpose": "Ratified amendment to CHQ-PRS-2026-001 establishing the minimum evidence threshold and record requirements for assumption retirement.",
  "sections": [
    {
      "heading": "AMENDMENT AUTHORITY AND EFFECT",
      "content": [
        "Instrument ID: CHQ-PRS-2026-001-AMD-001.",
        "Status: RATIFIED / IN FORCE.",
        "Ratified by CHQ editorial governance on September 22, 2026 as a versioned amendment to CHQ-PRS-2026-001.",
        "This amendment governs assumption-retirement actions and the Position evidence states capable of supporting them. It does not alter the canonical text of the preserved PRS v1.0 instrument."
      ],
      "type": "paragraph"
    },
    {
      "heading": "MINIMUM EVIDENCE THRESHOLD",
      "content": [
        "A Position may retire an assumption only when its evidence state is CONFIRMED.",
        "BUILDING, EMERGING, and REINFORCING Positions may place an assumption under pressure but may not retire it.",
        "A non-Position instrument may support retirement only when it is identified in the retirement record and independently satisfies the Evidentiary Sufficiency Gate. Editorial judgment, adjacency, and a withdrawn Position do not satisfy or transfer retirement provenance."
      ],
      "type": "paragraph"
    },
    {
      "heading": "RETIREMENT RECORD REQUIREMENTS",
      "content": [
        "Every retirement must record its effective date or bounded date, rationale, supporting instrument, evidence state at retirement or audit, and supersession disposition.",
        "Pre-ratification retirements that do not meet the threshold remain historical registry facts but must be labeled LEGACY — THRESHOLD NOT MET or UNRECOVERABLE.",
        "A legacy or unrecoverable retirement is not precedent for future retirement and may not be cited as proof that the governing claim was evidentially resolved."
      ],
      "type": "paragraph"
    },
    {
      "heading": "RATIFICATION RECORD",
      "content": [
        "The threshold and the audit of all existing retired assumptions were ratified together on September 22, 2026.",
        "A-014 has no recoverable retirement instrument. CHQ-P-2026-007 is expressly excluded as provenance because its subject was rotation assurance, not patching efficacy, and because withdrawal cannot transfer authority.",
        "A-009 is supported independently by the contemporaneous evidence preserved in CHQ-PM-2026-002 and does not depend on CHQ-P-2026-007."
      ],
      "type": "paragraph"
    }
  ]
}
```