Every 2024 IRC section and the IBC as it loads, by number or topic, plus the local rules for your city. Free to search.
Detached houses, duplexes and townhouses up to 3 stories with their own exits use the IRC; every other building uses the IBC (IBC 101.2).
17 sections matching “IBC 307” for San Antonio, TX, the 2024 IRC
IBC 307.1
High-hazard Group H
Group H: making, processing or storing hazardous materials above the maximum allowable quantities (MAQ) per control area in Tables 307.1(1) and (2). Classed H-1 to H-5, with Section 415 and the IFC; rooftop hazardous materials follow the IFC.
Storage MAQ per control area, examples: flammable liquid IA 30 gal, IB/IC 120 gal (combined 120), combustible II 120 gal, IIIA 330 gal, IIIB 13,200 gal; flammable solid 125 lb; flammable gas 1,000 cu ft (high BV). Doubled with full NFPA 13 sprinklers and doubled again in approved cabinets; some materials allowed only if sprinklered.
Storage MAQ per control area: corrosives 5,000 lb or 500 gal (810 cu ft gas), toxic 500 lb or 500 gal (810 cu ft gas), highly toxic 10 lb (20 cu ft gas, cabinets only). Doubled with sprinklers and doubled again in approved cabinets.
H-1: detonation hazards, such as explosives (Divisions 1.1 to 1.6), unclassified detonable organic peroxides, Class 4 oxidizers, detonable pyrophorics and Class 3 detonable or Class 4 unstable materials.
H-2: deflagration or accelerated burning, such as Class I to IIIA liquids in open or over-15-psig systems, hazardous combustible dust, flammable cryogens, Category 1A and high-burning-velocity 1B gases, Class I organic peroxides, Class 3 oxidizers in open or pressurized systems, nondetonable pyrophorics and Class 3 water-reactives.
H-3: materials that readily burn or are physical hazards, such as Class I to IIIA liquids in closed systems at 15 psig or less, combustible fibers, 1.4G consumer fireworks, oxidizing cryogens and gases, low-BV 1B gases, flammable solids, Class II–III organic peroxides, Class 2 oxidizers and Class 2 unstable or water-reactive materials.
Materials listed in Table 307.1.1 don't count toward MAQ or make a building Group H, such as building materials, retail consumer products in containers up to 1.3 gal, alcoholic beverages, fuel in vehicles and fixed appliances, refrigerants, and battery, fuel cell and capacitor ESS; they still follow the IFC.
Searches all 4,276 IRC 2024 sections, 5,532 IBC 2024 sections and defined terms (Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33 so far) and each city's local rules as they are added. Section numbers and titles from the International Residential Code and International Building Code, 2024 editions, copyrighted by the International Code Council; the IRC's electrical chapters (34 to 43) follow NFPA 70, the National Electrical Code. Requirements are summarized in our words (IRC Chapters 3 to 43, IBC Chapters 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33); read the full text at the link on each result. Local values come from each city's published documents.
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