# External source check (MDA-MAP-20260831)

Checked 2026-09-04 with `scripts/verify-external-sources.py` (GET, follow redirects, 25s timeout). None of these pages audited this fixture. Machine log: [`external-source-check-MDA-MAP-20260831.json`](./external-source-check-MDA-MAP-20260831.json).

| Source | Requested URL | Final URL | HTTP | Title SHA-256 | Note | Use |
|---|---|---|---|---|---|---|
| Assessing Data Reliability | https://www.gao.gov/products/gao-20-283g | https://www.gao.gov/products/gao-20-283g | 200 | 4b63162eff92e4ec |  | Accuracy, completeness, and fitness-for-purpose context |
| AQuA Book | https://www.gov.uk/guidance/the-aqua-book | https://www.gov.uk/guidance/the-aqua-book | 200 | f618e2989914313f |  | Analytical quality-assurance context |
| SP 800-53 Rev. 5 | https://csrc.nist.gov/publications/detail/sp/800-53/rev-5/final | https://csrc.nist.gov/pubs/sp/800/53/r5/upd1/final | 200 | fbdc404c0aef4a37 |  | Access-control and system-control context |
| Data protection | https://commission.europa.eu/law/law-topic/data-protection_en | https://commission.europa.eu/law/law-topic/data-protection_en | 200 | acd3a980cd49d2bc |  | EU data-protection context |
| BEA | https://www.bea.gov/ | https://www.bea.gov/ | 200 | 67bed0d65a0f3a51 |  | Macro-economic context only |

Keep original requested URLs. Re-check at decision time.