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/2017a/sb-17-278.md

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+---
+type: "Bill"
+title: "Prohibit Nuisance Exhibition Motor Vehicle Exhaust"
+description: "The bill prohibits engaging in a nuisance exhibition of motor vehicle exhaust, which is the act of knowingly blowing black smoke through one or more exhaust pipes attached to a motor vehicle with a gross vehicle weight rating of 14,000 pounds or less in a manner that obstructs or obscures the view of another driver, a bicyclist, or a pedestrian. A person who violates the prohibition commits a class A traffic infraction, punishable by a fine of $100."
+jurisdiction: "us/states/co"
+legislature: "Colorado General Assembly"
+session: "2017A"
+identifier: "SB 17-278"
+citation: "Colorado SB 17-278 (2017A)"
+classification: ["bill"]
+subjects: []
+status: "enacted"
+primary_sponsors: ["Don Coram", "Joann Ginal"]
+version_count: 8
+action_count: 13
+vote_count: 2
+first_action: "2017-03-31T06:00:00+00:00"
+last_action: "2017-06-05T06:00:00+00:00"
+source: "openstates"
+source_identifier: "ocd-bill/83626c52-0d2f-4677-9d10-3e470d31e427"
+source_url: "http://leg.colorado.gov/bills/sb17-278"
+source_hash: "1533599c7fbcd2459fccd4058fa85387faa48e88f8800b3de850b385d1649749"
+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 17-278 (2017A) — Prohibit Nuisance Exhibition Motor Vehicle Exhaust
+
+The bill prohibits engaging in a nuisance exhibition of motor vehicle exhaust, which is the act of knowingly blowing black smoke through one or more exhaust pipes attached to a motor vehicle with a gross vehicle weight rating of 14,000 pounds or less in a manner that obstructs or obscures the view of another driver, a bicyclist, or a pedestrian. A person who violates the prohibition commits a class A traffic infraction, punishable by a fine of $100.
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **Committee Amendment** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017a/bills/cr/2017A_SB278_H_HIE_001.pdf)
+2. **Engrossed (04/18/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_278_eng.pdf)
+3. **Final Act (05/15/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_278_enr.pdf)
+4. **Introduced (03/31/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_278_01.pdf)
+5. **Reengrossed (04/19/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_278_ren.pdf)
+6. **Rerevised (05/02/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_278_rer.pdf)
+7. **Revised (05/01/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_278_rev.pdf)
+8. **Signed Act (06/05/2017)** (committee substitute) — [source](http://leg.colorado.gov/sites/default/files/documents/2017A/bills/2017a_278_signed.pdf)
+
+## Votes
+
+- Refer Senate Bill 17-278 to the Committee of the Whole. The motion passed on a vote of 9-2. — **9–2** (pass) · legislature
+- Refer Senate Bill 17-278 to the Committee of the Whole. The motion passed on a vote of 3-2. The motion passed on a vote of 3-2. — **3–2** (pass) · legislature
+
+## Sponsors
+
+- Don Coram — primary (person)
+- Joann Ginal — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2017-06-05T06:00:00+00:00** Governor Signed `executive-signature`
+- **2017-05-15T06:00:00+00:00** Sent to the Governor `executive-receipt`
+- **2017-05-15T06:00:00+00:00** Signed by the Speaker of the House
+- **2017-05-15T06:00:00+00:00** Signed by the President of the Senate
+- **2017-05-02T06:00:00+00:00** House Third Reading Passed - No Amendments `reading-3, passage`
+- **2017-05-01T06:00:00+00:00** House Second Reading Passed - No Amendments `reading-2`
+- **2017-04-27T06:00:00+00:00** House Committee on Health, Insurance, & Environment Refer Unamended to House Committee of the Whole `referral-committee, committee-passage`
+- **2017-04-19T06:00:00+00:00** Introduced In House - Assigned to Health, Insurance, & Environment `introduction`
+- **2017-04-19T06:00:00+00:00** Senate Third Reading Passed - No Amendments `reading-3, passage`
+- **2017-04-18T06:00:00+00:00** Senate Second Reading Passed - No Amendments `reading-2`
+- **2017-04-17T06:00:00+00:00** Senate Second Reading Laid Over Daily - No Amendments
+- **2017-04-11T06:00:00+00:00** Senate Committee on Transportation Refer Unamended to Senate Committee of the Whole `referral-committee, committee-passage`
+- **2017-03-31T06:00:00+00:00** Introduced In Senate - Assigned to Transportation `introduction`
+
+## Source
+
+OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/83626c52-0d2f-4677-9d10-3e470d31e427`. Confidence: reported (aggregated from official Colorado legislature records).
+