Legislation: batch A — AK AL AR AZ CO CT DE GA HI IA ID

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

legislation/us/states/co/2023a/sb-23-206.md

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+---
+type: "Bill"
+title: "Disclose Radon Information Residential Property"
+description: "The act requires a contract to sell residential real estate to contain, and a landlord of residential real estate to provide to prospective tenants, in writing:"
+jurisdiction: "us/states/co"
+legislature: "Colorado General Assembly"
+session: "2023A"
+identifier: "SB 23-206"
+citation: "Colorado SB 23-206 (2023A)"
+classification: ["bill"]
+subjects: []
+status: "enacted"
+primary_sponsors: ["Dafna Michaelson Jenet", "Emily Sirota", "Faith Winter"]
+version_count: 9
+action_count: 15
+vote_count: 2
+first_action: "2023-03-20T06:00:00+00:00"
+last_action: "2023-06-05T06:00:00+00:00"
+source: "openstates"
+source_identifier: "ocd-bill/6f2a8258-dd44-4aa1-b0d9-c53cde6f7ff9"
+source_url: "https://leg.colorado.gov/bills/sb23-206"
+source_hash: "e4f42db9ae9b95b2d6b0b07718f81d641418995dcd34cc397aa3b3a0b6c6da3c"
+vintage: "2026-07-01"
+source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
+retrieved_at: "2026-07-06"
+confidence: "reported"
+tags: ["legislation", "bill", "us-co"]
+---
+
+# Colorado SB 23-206 (2023A) — Disclose Radon Information Residential Property
+
+The act requires a contract to sell residential real estate to contain, and a landlord of residential real estate to provide to prospective tenants, in writing:
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **Committee Amendment** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2023a_sb206_h_pbh_001.pdf)
+2. **Engrossed (04/13/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_206_eng.pdf)
+3. **Final Act (04/28/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_206_enr.pdf)
+4. **Introduced (03/20/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_206_01.pdf)
+5. **PA1 (04/05/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_206_s_lgh_01.pdf)
+6. **Reengrossed (04/14/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_206_ren.pdf)
+7. **Rerevised (04/21/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_206_rer.pdf)
+8. **Revised (04/19/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2023A/bills/2023a_206_rev.pdf)
+9. **Signed Act (06/05/2023)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2023a_206_signed.pdf)
+
+## Votes
+
+- BILL — **23–9** (pass) · upper
+- BILL — **51–11** (pass) · lower
+
+## Sponsors
+
+- Dafna Michaelson Jenet — primary (person)
+- Emily Sirota — primary (person)
+- Faith Winter — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2023-06-05T06:00:00+00:00** Governor Signed `executive-signature`
+- **2023-05-02T06:00:00+00:00** Sent to the Governor `executive-receipt`
+- **2023-04-28T06:00:00+00:00** Signed by the Speaker of the House
+- **2023-04-28T06:00:00+00:00** Signed by the President of the Senate
+- **2023-04-21T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
+- **2023-04-20T06:00:00+00:00** House Third Reading Laid Over Daily - No Amendments
+- **2023-04-19T06:00:00+00:00** House Second Reading Special Order - Passed - No Amendments
+- **2023-04-18T06:00:00+00:00** House Committee on Public & Behavioral Health & Human Services Refer Unamended to House Committee of the Whole `committee-passage, referral-committee`
+- **2023-04-14T06:00:00+00:00** Introduced In House - Assigned to Public & Behavioral Health & Human Services `introduction`
+- **2023-04-14T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
+- **2023-04-13T06:00:00+00:00** Senate Second Reading Passed with Amendments - Committee, Floor `reading-2`
+- **2023-04-12T06:00:00+00:00** Senate Second Reading Laid Over Daily - No Amendments
+- **2023-04-10T06:00:00+00:00** Senate Second Reading Laid Over Daily - No Amendments
+- **2023-04-04T06:00:00+00:00** Senate Committee on Local Government & Housing Refer Amended to Senate Committee of the Whole `committee-passage, referral-committee`
+- **2023-03-20T06:00:00+00:00** Introduced In Senate - Assigned to Local Government & Housing `introduction`
+
+## Source
+
+OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/6f2a8258-dd44-4aa1-b0d9-c53cde6f7ff9`. Confidence: reported (aggregated from official Colorado legislature records).
+