Idaho Capitol Watch
HB 643: BUILDING CODES – Amends existing law to require certain heat detection devices in certain attached garages and to provide an exemption from a requirement of fire sprinklers for certain multiple-family dwellings with fire walls.
Amends Idaho Code 39-4116 to require heat detection devices in attached garages for new single-family homes and certain multi-family dwellings exempt from automatic fire sprinkler systems. Clarifies exemption for multi-family dwellings up to two units or larger buildings with proper fire walls. Effective July 1, 2026.
Status
Reported Printed (February 13, 2026) · Originated in the Idaho House · Introduced February 12, 2026
Sponsors
- BUSINESS COMMITTEE
Committees
- JRA for Printing
Bill history
- February 12, 2026 — House: Introduced, read first time, referred to JRA for Printing
- February 13, 2026 — House: Reported Printed and Referred to Business
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