**Overall Verdict:** Strong Accept — The submission is complete, professionally substantive, and reachable offline, with independently reconciled reference calculations and no material defect found.

**Completeness Check:**

- Instruction: Complete — TASK.md defines the six-table scope, all 1,560 records, formulas, rounding, flags, uncertainty classifications, and exact output schema.
- Inputs: Complete — All 18 source files are readable and support the required calculations, geography selection, report comparisons, and policy requirements.
- Toolchain: Complete — The declared open-source workflow is suitable for one ordinary machine; scoring requires only Python’s standard library.
- Reference output: Complete — The perfect-output audit.json equals the protected reference; all 1,560 records reconcile with independent calculations and report transcription.
- Rubric: Complete — Deterministic weights, tolerances, partial credit, hard failures, and full-pass conditions are explicitly defined and reflected in the scorer.

**File and Task Reachability:**

Attachments: `reachable`. End-to-end task: `reachable`.

Both solver_inputs.zip and evaluator.zip were inspected completely at the attachment level. Inspected contents include TASK.md, source_manifest.json, all five DAT tables, Geos20211YR.txt, Geos20221YR.txt, all five schema JSONs, acsbr-016.pdf, 2022_Instructions_for_Stat_Testing_ACS.pdf, ACS_Accuracy_of_Data_2022.pdf, ds027.pdf, census_api_terms.html, and census_citation_policy.html. Evaluator inspection covered score.py, reference.json, the perfect-output audit.json, reference_builder.py, test_score.py, test_results.json, README.md, and package_inventory.json.

Archive sizes match the attachment manifest; both containers pass integrity checks without unsafe paths or encryption barriers. Source and evaluator-member hashes match their supplied inventories. Geography membership, estimates, MOEs, deltas, published flags, Z markers, discrepancy records, and summaries reconcile. The reference correctly distinguishes 392 available metros from 389 threshold-eligible metros.

The completion path is offline source parsing and report transcription, independent calculation, production of audit.json, and deterministic evaluation using the separately retained evaluator. No required content remained inaccessible. Submitted programs were inspected but not executed; the recorded 46 passing tests were not independently rerun. External provenance was not independently verified online.

License keys, accounts, tokens, and other credentials are not required from the contributor. Confidential, proprietary, or internal material may be evaluated as submitted evidence without requiring additional disclosure.

**Special Screening:**

None. The inspected evidence supports an audit of official aggregate statistics, not fabricated core inputs or injected defects. Public Census provenance alone does not establish a public benchmark; external benchmark status remains unverified.

**Recommended Changes:**

The submission preserves source integrity, separates evaluator answers from solver inputs, and handles approximation and identifiability limits explicitly. No changes are required.