8 county-level rules, plus city-specific rules for 1 city in Ada County, Idaho.
Verified from official government sources
Recreational fires such as backyard fire pits and campfires are treated separately from yard-waste burning and are generally allowed in Ada County, but burning is prohibited whenever the Treasure Valley air quality index reaches 60 or higher. Rural areas outside city limits need an Idaho fire-season permit May 10-October 20.
Only nonaerial 'safe and sane' fireworks (fountains, sparklers, ground spinners, smoke devices, snakes) are legal for consumers in Idaho. Aerial and audible fireworks, firecrackers, and Roman candles are illegal without a public-display permit. Consumer sale/use runs June 23 to July 5.
Idaho Code 39-2602(6)
"Nonaerial common fireworks" means any fireworks such as ground spinners, fountains, sparklers, smoke devices or snakes designed to remain on or near the ground and not to travel outside a fifteen (15) foot diameter circle... Nonaerial common fireworks do not include firecrackers, jumping jacks, or similar products.
Clearing dry brush, weeds, and flammable vegetation is central to wildfire protection in the Boise foothills. Idaho fire agencies recommend at least 100 feet of defensible space around homes on flat ground, and more on slopes. Ditch-bank and fence-line vegetation may be burned under Ada County's open-burn rules.
Ada County allows outdoor burning of residential yard waste in rural areas only when weather permits and the air quality index is 60 or below. Burn barrels are prohibited countywide. Residents outside city limits need an Idaho fire-season burn permit from May 10 to October 20.
The Boise foothills and rural fringes of Ada County lie in the wildland-urban interface (WUI), an area of high wildfire risk. Ada County and the City of Boise have WUI planning and code provisions, and fireworks are barred in areas of severe fire threat based on current vegetative conditions.
Idaho Code 39-2609(4)
It shall be unlawful for any person, except in compliance with this chapter, to: ... Use fireworks in any area that constitutes a severe fire threat based on the vegetative conditions during the current fire season as determined by the county commission or authority having jurisdiction, provided that notice of such areas is given in advance.
Idaho law requires a smoke detector on a wall in a hallway or space communicating with each bedroom area and the living area. Landlords must verify detectors are installed and working at the start of a rental; tenants must maintain them during the tenancy.
Idaho Code 44-2503
A smoke detector (which may be a single station alarm device) shall be installed on any wall in a hallway or space communicating with each bedroom area and the living area on the living area side... the top of the detector shall be located on a wall four (4) inches to twelve (12) inches below the ceiling.
Small recreational backyard fires are allowed, but burning of yard debris must stop whenever the Treasure Valley air quality index hits 60 or higher, and burn barrels are banned. Fires must stay attended with water and tools ready, and igniting is limited to between sunrise and sunset.
Propane storage follows the Idaho Fire Code and NFPA 58. LP-gas containers may not be used in basements, pits, or similar low areas where heavier-than-air gas can collect. Only small DOT cylinders (2.5 lb water capacity or less) may be stored inside buildings accessible to the public, up to 200
Idaho Fire Code (2015) 6103.2.1.1
LP-gas containers shall not be used in a basement, pit or similar location where heavier-than-air gas might collect.
1 cities in Ada County have their own fire regulations rules. Each link goes to that city's dedicated page with code citations.
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