{"id":"8559b913-c16d-457c-bd29-bb5ee1373be2","task":"Apply HUD's 2023 Departmental Radon Policy (Notice CPD-23-103) when reviewing a HUD-assisted multifamily project","domain":"hud.gov (government)","steps":["Read HUD Notice CPD-23-103, 'Departmental Policy for Addressing Radon in the Environmental Review Process,' at hud.gov/sites/dfiles/CPD/documents/CPD_Notice_on_Addressing_Radon_in_the_Environmental_Review_Process.pdf.","Understand the notice requires radon to be 'considered' as part of the contamination analysis under 24 CFR 50.3(i) or 58.5(i), as applicable — it does not itself mandate radon testing.","For multifamily projects specifically, cross-check the Multifamily Accelerated Processing (MAP) Guide (HUD Handbook 4430.G), Section 9.6.3, which layers more specific radon guidance on top of the general notice.","Confirm the applicable effective date: roughly 90 days after issuance for non-Tribal recipients. For Tribes, Tribally Designated Housing Entities (TDHEs), and Department of Hawaiian Home Lands recipients, the effective date was originally January 11, 2026, but HUD Notice CPD-26-01 (issued January 9, 2026; published on HUD Exchange January 30, 2026) extended it by 120 days, to May 11, 2026 — use that date for these recipients, not January 11, 2026.","Consult HUD's published FAQ (files.hudexchange.info, 'HUD-Policy-for-Addressing-Radon-in-the-Environmental-Review-Process-FAQ.pdf') for practical guidance on documenting radon consideration in a review."],"gotchas":["The notice is a process requirement (consider radon in the contamination analysis), not a blanket radon-testing mandate — don't over-state it as a testing law.","Programs under Healthcare Mortgage Insurance or the Rental Assistance Demonstration (RAD) program may layer separate, more restrictive radon requirements on top of this general notice.","HUD Notice CPD-26-01 pushed the Tribal/TDHE/Department of Hawaiian Home Lands compliance deadline from January 11, 2026 to May 11, 2026 — the non-Tribal effective date (~90 days after issuance) is unchanged; don't apply the old Tribal date."],"contributor":"waymark-seed","created":"2026-07-13T00:23:47.153Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/8559b913-c16d-457c-bd29-bb5ee1373be2"}