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/2024a/hb-24-1235.md

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+---
+type: "Bill"
+title: "Reduce Aviation Impacts on Communities"
+description: "Section 2 of the act creates a state income tax credit for owners of aircraft that incur qualifying expenses to enable an aircraft that is powered by leaded aviation gasoline to be certified to instead be powered by unleaded aviation gasoline."
+jurisdiction: "us/states/co"
+legislature: "Colorado General Assembly"
+session: "2024A"
+identifier: "HB 24-1235"
+citation: "Colorado HB 24-1235 (2024A)"
+classification: ["bill"]
+subjects: []
+status: "enacted"
+primary_sponsors: ["Kyle Brown", "Rachel Zenzinger", "Shannon Bird", "Steve Fenberg"]
+version_count: 11
+action_count: 16
+vote_count: 2
+first_action: "2024-02-12T07:00:00+00:00"
+last_action: "2024-05-17T06:00:00+00:00"
+source: "openstates"
+source_identifier: "ocd-bill/02560750-238c-43b0-b2ed-0b7bbfc5484e"
+source_url: "https://leg.colorado.gov/bills/hb24-1235"
+source_hash: "1c9c1b9cb342c9d07795b2f9cfa87d1cf62c4873cf20bebb7a0b32dc8634818e"
+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 HB 24-1235 (2024A) — Reduce Aviation Impacts on Communities
+
+Section 2 of the act creates a state income tax credit for owners of aircraft that incur qualifying expenses to enable an aircraft that is powered by leaded aviation gasoline to be certified to instead be powered by unleaded aviation gasoline.
+
+## 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/2024a_hb1235_s_app_004.pdf)
+2. **Engrossed (04/15/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1235_eng.pdf)
+3. **Final Act (05/13/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1235_enr.pdf)
+4. **Introduced (02/12/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1235_01.pdf)
+5. **PA1 (03/07/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1235_h_thl_01.pdf)
+6. **PA2 (03/20/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1235_h_thl_fin_01.pdf)
+7. **PA3 (04/12/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1235_h_thl_fin_app_01.pdf)
+8. **Reengrossed (04/17/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1235_ren.pdf)
+9. **Rerevised (04/29/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1235_rer.pdf)
+10. **Revised (04/26/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/documents/2024A/bills/2024a_1235_rev.pdf)
+11. **Signed Act (05/17/2024)** (committee substitute) — [source](https://leg.colorado.gov/sites/default/files/2024a_1235_signed.pdf)
+
+## Votes
+
+- BILL — **25–9** (pass) · upper
+- BILL — **43–18** (pass) · lower
+
+## Sponsors
+
+- Kyle Brown — primary (person)
+- Rachel Zenzinger — primary (person)
+- Shannon Bird — primary (person)
+- Steve Fenberg — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2024-05-17T06:00:00+00:00** Governor Signed `executive-signature`
+- **2024-05-14T06:00:00+00:00** Sent to the Governor `executive-receipt`
+- **2024-05-13T06:00:00+00:00** Signed by the President of the Senate
+- **2024-05-13T06:00:00+00:00** Signed by the Speaker of the House
+- **2024-04-29T06:00:00+00:00** Senate Third Reading Passed - No Amendments `passage, reading-3`
+- **2024-04-26T06:00:00+00:00** Senate Second Reading Special Order - Passed - No Amendments
+- **2024-04-26T06:00:00+00:00** Senate Committee on Appropriations Refer Unamended to Senate Committee of the Whole `committee-passage, referral-committee`
+- **2024-04-23T06:00:00+00:00** Senate Committee on Finance Refer Unamended to Appropriations `referral-committee`
+- **2024-04-19T06:00:00+00:00** Introduced In Senate - Assigned to Finance `introduction`
+- **2024-04-17T06:00:00+00:00** House Third Reading Passed - No Amendments `passage, reading-3`
+- **2024-04-16T06:00:00+00:00** House Third Reading Laid Over Daily - No Amendments
+- **2024-04-15T06:00:00+00:00** House Second Reading Special Order - Passed with Amendments - Committee, Floor
+- **2024-04-12T06:00:00+00:00** House Committee on Appropriations Refer Amended to House Committee of the Whole `committee-passage, referral-committee`
+- **2024-03-18T06:00:00+00:00** House Committee on Finance Refer Amended to Appropriations `referral-committee`
+- **2024-03-06T07:00:00+00:00** House Committee on Transportation, Housing & Local Government Refer Amended to Finance `referral-committee`
+- **2024-02-12T07:00:00+00:00** Introduced In House - Assigned to Transportation, Housing & Local Government `introduction`
+
+## Source
+
+OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/02560750-238c-43b0-b2ed-0b7bbfc5484e`. Confidence: reported (aggregated from official Colorado legislature records).
+