Legislation: batch B — IL IN KS KY LA MA MD ME MI MN

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

legislation/us/states/la/2024/sb-503.md

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+---
+type: "Bill"
+title: "ENVIRONMENTAL CONTROL: Provides for air monitoring. (gov sig) (EN INCREASE SG EX See Note)"
+description: "ENVIRONMENTAL CONTROL: Provides for air monitoring. (gov sig) (EN INCREASE SG EX See Note)"
+jurisdiction: "us/states/la"
+legislature: "Louisiana Legislature"
+session: "2024"
+identifier: "SB 503"
+citation: "Louisiana SB 503 (2024)"
+classification: ["bill"]
+subjects: []
+status: "enacted"
+primary_sponsors: ["Eddie Lambert"]
+version_count: 8
+action_count: 21
+vote_count: 3
+first_action: "2024-04-03"
+last_action: "2024-05-23"
+source: "openstates"
+source_identifier: "ocd-bill/ed350b07-e001-46f9-9612-10150b507322"
+source_url: "https://www.legis.la.gov/Legis/BillInfo.aspx?i=247217"
+source_hash: "791de7fe59c2ef4a009af2313c092ddbf8685b42f41d1e55a59135bee4c0b5e5"
+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-la"]
+---
+
+# Louisiana SB 503 (2024) — ENVIRONMENTAL CONTROL: Provides for air monitoring. (gov sig) (EN INCREASE SG EX See Note)
+
+## Version chain
+
+The bill's text revisions, in order — the diff chain from filing to enrollment.
+
+1. **SB503 Original** (filed) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1362216)
+2. **House Committee Amendment, #3172, NATR, Draft** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1366171)
+3. **House Committee Amendment, #3229, NATR, Adopted** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1366532)
+4. **SB503 Act** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1379395)
+5. **SB503 Engrossed** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1363519)
+6. **SB503 Reengrossed** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1364185)
+7. **Senate Floor Legislative Bureau Amendment, #1771, Miller, G., Adopted** (committee substitute) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1363670)
+8. **SB503 Enrolled** (enrolled) — [source](https://www.legis.la.gov/Legis/ViewDocument.aspx?d=1373929)
+
+## Votes
+
+- FINAL PASSAGE (#267) — **30–8** (pass) · upper
+- CONCUR (#620) — **35–0** (pass) · upper
+- FINAL PASSAGE (#944) — **76–16** (pass) · lower
+
+## Sponsors
+
+- Eddie Lambert — primary (person)
+
+## Timeline
+
+The legislative action history — every referral, reading, and vote.
+
+- **2024-05-23** Effective date 5/23/2024.
+- **2024-05-23** Signed by the Governor. Becomes Act No. 181. `became-law, executive-signature`
+- **2024-05-15** Sent to the Governor by the Secretary of the Senate. `executive-receipt`
+- **2024-05-14** Signed by the Speaker of the House.
+- **2024-05-14** Enrolled. Signed by the President of the Senate. `enrolled`
+- **2024-05-13** Amendments proposed by the House read and concurred in by a vote of 35 yeas and 0 nays.
+- **2024-05-08** Received from the House with amendments. `receipt`
+- **2024-05-08** Read third time by title, roll called on final passage, yeas 76, nays 16. Finally passed, ordered to the Senate. `passage`
+- **2024-05-08** Called from the calendar.
+- **2024-05-06** Scheduled for floor debate on 05/08/2024.
+- **2024-05-06** Notice given.
+- **2024-05-06** Read by title, returned to the calendar.
+- **2024-05-01** Scheduled for floor debate on 05/06/2024.
+- **2024-04-22** Read by title, amended, passed to 3rd reading. `reading-3`
+- **2024-04-18** Reported without Legislative Bureau amendments.
+- **2024-04-17** Reported with amendments (13-0). Referred to the Legislative Bureau. `committee-passage-favorable`
+- **2024-04-11** Read by title, under the rules, referred to the Committee on Natural Resources and Environment. `referral-committee`
+- **2024-04-10** Received in the House from the Senate, read by title, lies over under the rules.
+- **2024-04-09** Senate floor amendments read and adopted. Read by title and passed by a vote of 30 yeas and 8 nays; ordered reengrossed and sent to the House. Motion to reconsider tabled. `passage`
+- **2024-04-08** Read by title. Ordered engrossed and passed to third reading and final passage.
+- **2024-04-03** Substitute for Senate Bill No. 275. Read by title and placed on the Calendar for a second reading.
+
+## Source
+
+OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/ed350b07-e001-46f9-9612-10150b507322`. Confidence: reported (aggregated from official Louisiana legislature records).
+