Legislation: batch E — CA TN VA VT WA WI WV WY

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

legislation/us/states/tn/113/sb-434.md

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+---
+type: "Bill"
+title: "Motor Vehicles - As enacted, clarifies that excessive or unusual noise or annoying smoke can be used to determine whether a muffler is in good working order and in constant operation as required by law; exempts farm tractors or implements of husbandry from this law; adds a defense to prosecution if certain evidence is provided. - Amends TCA Section 55-9-202."
+description: "Motor Vehicles - As enacted, clarifies that excessive or unusual noise or annoying smoke can be used to determine whether a muffler is in good working order and in constant operation as required by law; exempts farm tractors or implements of husbandry from this law; adds a defense to prosecution if certain evidence is provided. - Amends TCA Section 55-9-202."
+jurisdiction: "us/states/tn"
+legislature: "Tennessee General Assembly"
+session: "113"
+identifier: "SB 434"
+citation: "Tennessee SB 434 (113)"
+classification: ["bill"]
+subjects: ["Motor Vehicles"]
+status: "enacted"
+primary_sponsors: ["Crowe"]
+version_count: 4
+action_count: 23
+vote_count: 3
+first_action: "2023-01-24"
+last_action: "2023-06-20"
+source: "openstates"
+source_identifier: "ocd-bill/78234e6e-6049-4b14-9b54-d5b08aaf2088"
+source_url: "http://wapp.capitol.tn.gov/apps/BillInfo/default.aspx?BillNumber=SB0434&GA=113"
+source_hash: "b927c1c755d40f01e3cc6732249d9081409f15be7f69763c2a46248bd48ebdd1"
+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-tn"]
+---
+
+# Tennessee SB 434 (113) — Motor Vehicles - As enacted, clarifies that excessive or unusual noise or annoying smoke can be used to determine whether a muffler is in good working order and in constant operation as required by law; exempts farm tractors or implements of husbandry from this law; adds a defense to prosecution if certain evidence is provided. - Amends TCA Section 55-9-202.
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **Amendment HA0119** (committee substitute) — [source](https://www.capitol.tn.gov/Bills/113/Amend/HA0119.pdf)
+2. **Amendment HA0193** (committee substitute) — [source](https://www.capitol.tn.gov/Bills/113/Amend/HA0193.pdf)
+3. **Amendment SA0174** (committee substitute) — [source](https://www.capitol.tn.gov/Bills/113/Amend/SA0174.pdf)
+4. **Current Version** (committee substitute) — [source](https://www.capitol.tn.gov/Bills/113/Bill/SB0434.pdf)
+
+## Votes
+
+- TRANSPORTATION AND SAFETY COMMITTEE: Recommended for passage with amendment/s, refer to Senate Calendar Committee Ayes 9, Nays 0 PNV 0 3/15/2023 Passed (2) — **9–0** (pass) · upper
+- FLOOR VOTE: REGULAR CALENDAR PASSAGE ON THIRD CONSIDERATION 3/30/2023 Passed (1) — **54–28** (pass) · lower
+- FLOOR VOTE: as Amended Third Consideration 3/23/2023 Passed (1) — **20–7** (pass) · upper
+
+## Sponsors
+
+- Crowe — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2023-01-24** Filed for introduction `filing`
+- **2023-01-25** Introduced, Passed on First Consideration `introduction`
+- **2023-01-26** Passed on Second Consideration, refer to Senate Transportation and Safety Committee `passage`
+- **2023-03-01** Placed on Senate Transportation and Safety Committee calendar for 3/8/2023
+- **2023-03-08** Placed on Senate Transportation and Safety Committee calendar for 3/15/2023
+- **2023-03-08** Action deferred in Senate Transportation and Safety Committee to 3/15/2023
+- **2023-03-15** Recommended for passage with amendment/s, refer to Senate Calendar Committee Ayes 9, Nays 0 PNV 0
+- **2023-03-21** Placed on Senate Regular Calendar for 3/23/2023
+- **2023-03-23** Engrossed; ready for transmission to House `receipt`
+- **2023-03-23** Passed Senate as amended, Ayes 20, Nays 7, PNV 2 `passage`
+- **2023-03-23** Senate adopted Amendment (Amendment 1 - SA0174)
+- **2023-03-27** Rcvd. from S., held on H. desk.
+- **2023-03-30** Passed H., Ayes 54, Nays 28, PNV 2 `passage`
+- **2023-03-30** Am. withdrawn. (Amendment 2 - HA0193) `amendment-withdrawal`
+- **2023-03-30** Am. withdrawn. (Amendment 1 - HA0119) `amendment-withdrawal`
+- **2023-03-30** Subst. for comp. HB. `substitution`
+- **2023-04-03** Signed by Senate Speaker `passage`
+- **2023-04-03** Enrolled and ready for signatures `enrolled`
+- **2023-04-05** Transmitted to Governor for action. `executive-receipt`
+- **2023-04-05** Signed by H. Speaker `passage`
+- **2023-04-17** Signed by Governor. `executive-signature`
+- **2023-06-20** Effective date(s) 07/01/2023
+- **2023-06-20** Pub. Ch. 164
+
+## Source
+
+OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/78234e6e-6049-4b14-9b54-d5b08aaf2088`. Confidence: reported (aggregated from official Tennessee legislature records).
+