Reading the actual guideline text below — never a general AI guess

Smoke Detectors

Here's what the guidelines require: We need to find working smoke detectors in three specific places—inside each bedroom, outside the bedroom areas, and on every level of the house. If any of these locations is missing a detector, that's considered a life-threatening deficiency that must be corrected within 24 hours. We note that a single detector placed in a hallway near multiple bedrooms can satisfy the "outside the bedroom" requirement, and that same detector might also count toward the "on each level" requirement, so you don't necessarily need separate detectors in every single spot—placement matters. It's also important to understand that smoke detectors and carbon monoxide detectors are different devices serving different purposes, even though they're sometimes sold together; a smoke detector alone won't meet carbon monoxide safety requirements, and vice versa.

Straight from HUD/FHA Single Family Handbook 4000.1 and Carbon Monoxide Detector Requirements (IRC R315 model code; NV local adoption) — nothing added.

Las Vegas 2026 Smoke Detector Regulations Updated

Las Vegas fire regulations clarify that existing homes at sale need battery-powered alarms in each required location but are not required to retrofit hardwired systems until a permit is pulled for alterations.

Texas Smoke Detector Requirement for New Construction and Property Transfers

Texas law requires that one- or two-family dwellings with construction commenced after January 1, 2008 must have a working smoke detector, and properties constructed before that date must have one installed before sale or transfer of ownership.