Victoria, TX Building Safety: Carbon Monoxide Detectors (2026)
Key Facts
- Governing code
- 2021 IRC § R315 (unamended)
- Wiring standard
- No. 14 AWG copper, hard-wired units
- Interconnection limit
- Up to 12 devices per NFPA 72
- Adopted by
- Victoria City Code § 21-60
- Enforced by
- Development Services Department
Summary
Victoria requires carbon monoxide alarms in one- and two-family dwellings under its adopted 2021 International Residential Code, and its own electrical code amendment sets the wiring standard for hard-wired CO detectors.
Branch-circuit conductors supplying loads other than cooking appliances as covered in Section 210.19(B) and as listed in Section 210.3 shall have an ampacity sufficient for the loads served and shall not be smaller than No. 12 AWG copper or No. 6 AWG aluminum or copper clad aluminum. Exception 1. Smoke/CO Detectors, where required to be hard wired, may use No. 14 AWG copper conductors when installed as per manufacturer instructions.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 42).
Full Breakdown
Victoria adopted the 2021 International Residential Code at City Code § 21-60 without deleting or amending Section R315 (Carbon Monoxide Alarms), so that code's CO alarm mandate for new construction and alterations to one- and two-family dwellings applies as published, unchanged by the city. Separately, Victoria's own electrical code amendment (§ 21-84, amending National Electrical Code § 210.19(D), mirrored at § 21-63 for IRC § E3406.3) specifically addresses hard-wired smoke/CO detectors: installers may use No. 14 AWG copper conductors instead of the usual No. 12 AWG, and multiple units may be interconnected per manufacturer instructions and NFPA 72 guidelines.
Violations & Fines
Undersized wiring or improperly interconnected hard-wired CO detectors fail electrical inspection; the Development Services Department can withhold final inspection sign-off or a certificate of occupancy until corrected.
Frequently Asked Questions
Does Victoria require carbon monoxide detectors in homes?
What wiring rule applies to hard-wired CO detectors in Victoria?
Sources & Official References
Other rules in Victoria
Texas rules heatmap·Compare Victoria to another location·View the Texas building safety overview
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