Relating to the authority of a county commissioners court to adopt an exemption from ad valorem taxation by each taxing unit that taxes the property of the portion of the appraised value of a person's property that is attributable to the installation in or on the property of certain water conservation systems.
Bill overview
Relating to the authority of a county commissioners court to adopt an exemption from ad valorem taxation by each taxing unit that taxes the property of the portion of the appraised value of a person's property that is attributable to the installation in or on the property of certain water conservation systems.
Reference notes
HB 3637 sources, status methodology and verification
Sources
- HB 3637 official legislative recordPrimary bill-status record.
- Current official bill textOfficial bill text or printing.
Methodology
KeepTXRed treats the official legislative record and latest official action as the factual status layer for HB 3637. Status labels are normalized for browsing, while the legislative timeline and documents preserve official action text and source links. Any KeepTXRed explanation below is editorial context and remains separate from the official record.
Last verified
Legislative record synchronized September 4, 2026 at 5:25 PM UTC; latest recorded official action May 14, 2025.
Bill → law → agency context
This relationship layer distinguishes what the normalized official record can prove from what it cannot. Enactment and effective dates come from the bill record. Agency names below are shown only when an official fiscal document supplies a verified agency reference; being cited in a fiscal note does not by itself prove that the agency administers the resulting law.
Official fiscal-note agency context
No verified agency references are available from the latest parsed official fiscal material. KeepTXRed does not infer an administering agency from the bill topic or title.
KeepTXRed explanation
This reviewed explanation is separate from the official bill record and is provided for general information, not legal advice.
KeepTXRed summary
HB 3637 was a House-passed proposal allowing a county commissioners court to adopt a property-tax exemption for the portion of property value attributable to a rainwater-harvesting or graywater system. The Senate did not pass it, and its required constitutional amendment never reached voters.
What would change
If both legislative and constitutional conditions had been satisfied, a county could have adopted an exemption that would apply across taxing units taxing the property for qualifying rainwater-harvesting or graywater installations.
Who may be affected
Property owners installing water-conservation systems, counties, cities, school districts, appraisal districts, water-conservation advocates and taxpayers.
When it would take effect
HB 3637 did not take effect. It did not receive Senate passage, and it was expressly contingent on voter approval of a constitutional amendment. Related HJR 88 and SJR 60 did not become one of the 17 amendments submitted to voters on November 4, 2025, so the constitutional condition was unsatisfied.
Limits and uncertainty
This exemption is not current law through HB 3637. The January 1, 2026 clause was conditional, not an automatic effective date.
Editorial sources and review notes
Official House text/analysis, fiscal material, and production status of HJR 88/SJR 60 reviewed. Bill failed and constitutional condition was not satisfied.
Editorial explanation reviewed 9/6/2026.
Current status
Passed
Received from the House
Latest official action
Received from the House
May 14, 2025 · house
Who this bill may affect
A verified audience or subject classification has not been attached to this bill yet.
Use the bill overview and official documents to determine whether the proposal may apply to you, your business, or a public agency.
Sponsors
Committee history
- Ways & Means
Out of committee
Legislative timeline
Received from the House
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Official recordReported engrossed
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Official recordStatement(s) of vote recorded in Journal
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Official recordRecord vote
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Official recordPassed
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Official recordRead 3rd time
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Official recordStatement(s) of vote recorded in Journal
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Official recordRecord vote
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Official recordPassed to engrossment
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Official recordRead 2nd time
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Official recordPlaced on General State Calendar
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Official recordConsidered in Calendars
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Official recordCommittee report sent to Calendars
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Official recordCommittee report distributed
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Official recordComte report filed with Committee Coordinator
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Official recordReported favorably w/o amendment(s)
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Official recordConsidered in formal meeting
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Official recordReferred to Ways & Means
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Official recordRead first time
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Official recordFiled
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Official record
Official bill text
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Related articles
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