ERRCSCheck

Free building checker

Does the radio coverage rule apply to your building?

Answer a few questions about the building. You get what the published rules say for your jurisdiction, the code section behind every line, and what to ask your fire marshal. Your answers stay in your browser.

Floor plans on a lobby desk with a two-way radio resting on them.

Updated Changelog

Not listed? Pick "statewide rules only". We add a county only after reading its own documents.
New or existing?
All floors, including garages.
Leave blank if unsure.
A few yes / no questions
Any basement, underground parking or other below-grade level?
Is it classed as a high-rise on its permit documents?
Does every unit or guest room open directly to an outside exit route?
Does every unit open to the outside or to a corridor that leads straight to an exit?
Have you received a citation or notice about radio coverage?

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Your result

Fill in what you know and press Check this building. Unknown answers are fine; the result tells you which ones matter.

Guidance, not engineering advice. Your fire marshal (AHJ) makes the final call.

How the checker decides

The checker compares your answers with the structured rules on each requirements page. Exemptions are checked first. If an exemption depends on something you did not answer, the result says which answer would change it. Every result links to the statute or fire marshal document it relies on, and the date we last verified it.

Who sets the rule

Four layers decide what your building owes

  1. Layer 1The model code
    IFC Section 510, and the NFPA standard it points to (NFPA 1221, now NFPA 1225). Sets the baseline: coverage, equipment, testing.IFC 2021 510; NFPA 1225 (2022)
  2. Layer 2Your state
    States adopt the code and some write their own law. Florida's statute says who must comply, lists exemptions and set the high-rise dates.F.S. 633.202(18)
  3. Layer 3Your fire marshal (AHJ)
    Sets the signal level, the radio bands and the permit steps, and keeps a technical criteria document.F.S. 633.202(18)(a); IFC 2021 510.4.2.2
  4. Layer 4Your building
    A signal test shows whether the inside meets that level. A system is needed only where it falls short.IFC 2021 510.4.2.1; F.S. 633.202(18)(c)1
A Florida limit on local rulesLocal fire marshals may not enforce rules stricter than the Florida Fire Prevention Code and the statute on whether a system is required, or how it is designed or installed. Signal levels, bands and permit steps still differ by county.F.S. 633.202(18)(i)
Why two buildings in different cities can face different ERRCS rules: each layer narrows the one above it.Source: IFC 2021 510; F.S. 633.202(18)(a), (c)1, (i).

Next step

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Questions people ask

Is the checker's answer final?

No. It reports what the published rules say for the facts you enter. Your fire marshal (AHJ) decides, usually after a signal test inside the building. Treat the result as a starting point for that conversation.

What happens to my answers?

The checker runs in your browser. Your answers are not sent to us unless you choose to request quotes afterward.

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