Jefferson County, AL Building Safety: Carbon Monoxide Detectors (2026)
Key Facts
- Applies to
- basement garage and crawl space only
- Replaces
- Type X sheetrock and/or sprinkler system
- Required package
- heat + smoke + CO detector, battery backup
- Governing code
- Building Code of Jefferson Co., AL, 2018 (amended 7/9/2020)
- Max penalty
- $500 fine or 30 days jail, plus $50/day
- Enforcing office
- Director of Development Services / Building Official
Summary
Jefferson County's Building Code lets basement garages and crawl spaces skip Type X sheetrock or a sprinkler system if the builder instead installs a hard-wired heat detector in line with a smoke detector plus a carbon monoxide detector with battery backup. The swap is spelled out in Table R302.6 of the 2018-edition local amendments.
TABLE R302.6 DWELLING-GARAGE SEPARATION
Option: In lieu of Type X Sheetrock and/or Sprinkler system @ Basement Garage and Crawl Space ONLY, an approved Heat Detector hard wired in line with approved Smoke Detector plus approved Carbon Monoxide Detector with battery backups may be used.
Full Breakdown
6. Normally a garage must be separated from the living space with fire-resistant Type X sheetrock, and some configurations call for an automatic sprinkler system. For basement garages and crawl spaces only, the code carves out an alternative: instead of the sheetrock and/or sprinkler, the builder may install an approved heat detector hard-wired in line with an approved smoke detector, plus an approved carbon monoxide detector with battery backup. This is a construction-compliance option, not a blanket household mandate; it applies specifically to the basement-garage/crawl-space separation scenario, not to every dwelling countywide.
2. Plans reflecting whichever separation method is chosen (sheetrock/sprinkler or the detector package) are reviewed by the Building Official as part of the permit process before construction proceeds, and inspections confirm the installed method matches what was approved. 6 territory; it only substitutes for the wall/ceiling fire-resistance and sprinkler elements in that specific basement/crawl space condition.
Violations & Fines
Section 113 of the Building Code makes it a misdemeanor for any person, firm or corporation to violate any provision of the Code, including the Table R302.6 separation requirements, after ten days' written notice from the Director of Development Services. The penalty is a fine of not more than $500, up to 30 days in jail, or both, plus $50 per day for each day the violation continues. Section 103.3.2 separately lets the Building Official revoke a permit if work proceeds in violation of the Code's provisions.
Frequently Asked Questions
Does Jefferson County require a CO detector in every home?
When can a builder use the detector option instead of sheetrock?
Where in Jefferson County does this Building Code apply?
What happens if neither the sheetrock nor the detector option is installed?
Sources & Official References
Other rules in Jefferson County
Compare Jefferson County to another location·View the Alabama building safety overview
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