Johnson County, IA Building Safety: Fire Sprinkler Requirements (2026)
Key Facts
- Sprinkler test interval
- Every 2 years (biennial)
- Test standard
- Certified to NFPA 25
- Alarm test interval
- Annually, to NFPA 72
- Enforcing office
- County Zoning Administrator / inspectors
- First-offense penalty
- Up to $750 civil citation
- Applies to
- Rental dwellings, unincorporated county only
Summary
Rental buildings in unincorporated Johnson County that are required to have an automatic sprinkler system must have it tested every two years by a qualified sprinkler technician who certifies compliance with NFPA 25. Automatic fire alarms in the same buildings need annual testing to NFPA 72. The Rental Housing Code, enforced by the Zoning Administrator, sets the standard.
All fire extinguishing devices and all early warning fire protection systems in rental dwellings shall be maintained in good working condition at all times. All fire protection equipment and early warning equipment shall be maintained in compliance with the Johnson County Fire Code. Buildings which are required to have an automatic fire alarm system shall have that alarm system tested annually by a qualified alarm technician to certify that the alarm system is in compliance with the current standard of NFPA 72, as amended. Rental buildings which are required to have an automatic sprinkling system shall have that system tested biennially by a qualified sprinkler system technician to certify that the system is in compliance with the current standard of NFPA chapter 25, as amended.
Official source re-checked September 7, 2026: the cited page had not changed since it was quoted.
Full Breakdown
9(Q) of the Johnson County Rental Housing Code, part of Volume Two of the county's Code of Ordinances for the unincorporated areas of Johnson County, sets the maintenance standard for fire protection systems in rental dwellings. It does not itself force a landlord to install a sprinkler system; the duty attaches once a building is already required to have an automatic sprinkling system under the applicable building or fire code. Once that trigger applies, the owner must have the system tested biennially, once every two years, by a qualified sprinkler system technician who certifies the system meets the current edition of NFPA 25, the national standard for inspecting, testing and maintaining water-based fire protection systems.
The same subsection requires any automatic fire alarm system serving the rental building to be tested annually against NFPA 72. All fire extinguishing devices and early-warning equipment must otherwise stay in good working condition and comply with the Johnson County Fire Code at all times. The Zoning Administrator and any inspector the county designates administer and enforce the Rental Housing Code, including inspections triggered by a complaint or an observed condition under Sec. 9(B). Landlords should keep the technician's test certificate on file since inspectors can request it during a rental housing inspection.
This chapter reaches only rental dwellings in the unincorporated county; Iowa City, Coralville, North Liberty and Tiffin enforce their own building and fire codes for rentals inside city limits.
Violations & Fines
Skipping the required biennial sprinkler test or annual alarm test is enforced under Chapter 8:8, incorporated by reference through Sec. 8:7.12. The county can issue a civil citation for a County Infraction: up to $750 for a first offense and up to $1,000 for a repeat offense under Sec. 8:8.3(C), or pursue a criminal charge carrying a fine up to $625 and up to 30 days in jail under Sec. 8:8.4. Each day the violation continues counts as a separate offense.
Frequently Asked Questions
Does Johnson County require sprinklers in every home?
How often must a rental sprinkler system be tested?
Who enforces the sprinkler testing rule?
What happens if a landlord never gets the sprinkler system tested?
Sources & Official References
Other rules in Johnson County
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