{
  "tool_id": "art-618-naic-clo-rbc-factor-calculator",
  "kernel_id": "art-618-naic-clo-rbc-factor-calculator",
  "display_name": "NAIC CLO/CBO/CDO Tranche RBC Factor Calculator",
  "tool_version": "1.0.0",
  "mandate_type": "compliance_control",
  "purpose": "Recomputes the NAIC Life RBC per-tranche capital charge for CLO/CBO/CDO bond tranches against the LR002 Column (2) factor grid adopted by the RBC Investment Risk & Evaluation (E) Working Group (Proposal 2026-12-IRE, effective YE2026 filings). Given a tranche's NAIC designation category, BSL thin-tranche flag, current tranche thickness, and book/adjusted carrying value, looks up the correct pre-tax factor -- including the flat 11.77% BSL thin-tranche surcharge for designation 2.C or below at <=4% thickness -- and computes the tranche-level RBC dollar requirement (ROUND(...,0)), summed across a portfolio. Exhaustively enumerated over the declared 31-state (naic_designation x bsl_thin_override_applicable) input domain. Verify-only: recomputes a prescribed charge from declared inputs, never asserts filing compliance or correctness of the filer's own rating/thickness determination.",
  "control_description": "Recomputes the NAIC Life RBC per-tranche capital charge for CLO/CBO/CDO bond tranches against the LR002 Column (2) factor grid adopted by the RBC Investment Risk & Evaluation (E) Working Group (Proposal 2026-12-IRE, effective YE2026 filings). Given a tranche's NAIC designation category, BSL thin-tranche flag, current tranche thickness, and book/adjusted carrying value, looks up the correct pre-tax factor -- including the flat 11.77% BSL thin-tranche surcharge for designation 2.C or below at <=4% thickness -- and computes the tranche-level RBC dollar requirement (ROUND(...,0)), summed across a portfolio. Exhaustively enumerated over the declared 31-state (naic_designation x bsl_thin_override_applicable) input domain. Verify-only: recomputes a prescribed charge from declared inputs, never asserts filing compliance or correctness of the filer's own rating/thickness determination.",
  "declared_inputs": [],
  "declared_outputs": [],
  "kernel_digest": "sha256:cb99858043a626cef3ee2982c902f5dc20456fe04034d70adf63b9a8177fd864",
  "trust_label": "deferred: deterministic source published, zkVM proof not yet generated; New gpu:false node, art-618, staged 2026-08-14. No GPU proving attempted this session (single-session build; GPU-CYCLE-PREFLIGHT-1's exec-cycle check was not run) -- ratchet-visible deferral per the §18 steady-state rule (RIDER-KERNEL.md), never a silent claim of proof. Proving is a follow-on.",
  "data_vintage": "2026-08-14",
  "last_validated": "2026-08-14",
  "conformance_fixtures_vendored": true,
  "compute_proof_ready": "deferred",
  "wave": 100,
  "source_url": "https://ainumbers.co/chaingraph/art-618-naic-clo-rbc-factor-calculator.html",
  "generated_at": "2026-08-15T11:12:17.704Z"
}