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• IBC 412.1

  General

  • Aircraft occupancies follow 412.1 to 412.7 and the IFC.

  Works withIFC

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2

  Airport traffic control towers

  • Applies to towers used only for the cab, equipment, radar, related offices and staff lounges.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.3

  Aircraft hangars

  • Hangars follow 412.3.1 to 412.3.6.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.4

  Residential aircraft hangars

  • Residential hangars follow 412.4.1 to 412.4.5.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.5

  Aircraft paint hangars

  • Aircraft painting happens in paint hangars meeting 412.5.1 to 412.5.8 and 416.

  Works withIBC 416

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.6

  Aircraft manufacturing facilities

  • Type I/II aircraft plants may use the longer travel distances of Table 412.6, up to 1,500 ft for very large, tall spaces.

  Works withIBC 1017.1

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.7

  Heliports and helistops

  • Heliports may be built on buildings per 412.7.1 to 412.7.5.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.1

  Construction

  • Tower construction per 412.2.1.1 to 412.2.1.3.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.2

  Means of egress and evacuation

  • Tower egress per 412.2.2.1 to 412.2.2.3.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.3

  Emergency systems

  • Tower systems per 412.2.3.1 to 412.2.3.3.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.4

  Automatic sprinkler system

  • Towers with floors over 35 ft above fire access are sprinklered.

  Works withIBC 903.3.1.1

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.5

  Protection of elevator wiring and cables

  • Elevator wiring protected per 3007.8.1.

  Works withIBC 3007.8.1

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.6

  Accessibility

  • Towers are accessible except per 1104.4.

  Works withIBC Chapter 11

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.3.1

  Exterior walls

  • Walls within 30 ft of lot lines or public ways are 2-hour.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.3.2

  Basements

  • Basement floors under hangars are Type IA, sealed, with outside-only access.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.3.3

  Floor surface

  • Floors drain through an oil separator; small lease spaces without servicing excepted.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.3.4

  Heating equipment

  • Heating goes in 2-hour rooms entered from outside or a vestibule; high-mounted unit heaters excepted.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.3.5

  Finishing

  • Doping and painting happen in a separate, protected detached building.

  Works withIBC 903

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.3.6

  Fire suppression

  • Hangars get NFPA 409 suppression by group from Table 412.3.6 (fire area and construction type); doors over 28 ft make it Group I.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.4.1

  Fire separation

  • Attached hangars need a 1-hour separation, self-closing doors with 4-in raised sills, and no openings to sleeping rooms.

  Works withIBC 716

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.4.2

  Egress

  • Two means of egress; only one may be through the dwelling.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.4.3

  Smoke alarms

  • Smoke alarms in the hangar.

  Works withIBC 907.2.22

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.4.4

  Independent systems

  • Hangar electrical, mechanical and DWV systems are independent of the dwelling.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.4.5

  Height and area limits

  • Residential hangars up to 2,000 sq ft and 20 ft high.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.5.1

  Occupancy classification

  • Paint hangars are classified per 307.1.

  Works withIBC 307.1

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.5.2

  Construction

  • Paint hangars are Type I or II.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.5.3

  Spray equipment cleaning operations

  • Spray cleaning happens in a liquid use room.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.5.4

  Operations

  • Only painting liquids under MAQ are allowed; more requires a liquid use room.

  Works withIBC 307.1

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.5.5

  Storage

  • Liquids over MAQ go in a liquid storage room.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.5.6

  Fire suppression

  • Suppression per NFPA 409.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.5.7

  Ventilation

  • Ventilation per the IMC.

  Works withIMC

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.5.8

  Electrical

  • Electrical per NFPA 70.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.6.1

  Ancillary areas

  • Ancillary rooms may exit through the main area, within Table 1017.2 inside the room.

  Works withIBC 1017.2

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.7.1

  Size

  • Landing areas for helicopters under 3,500 lb are at least 20 × 20 ft with a clear border averaging 15 ft (5 ft minimum).

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.7.2

  Design

  • Rooftop pads are noncombustible and contain fuel spills away from exits.

  Works withIBC 1607

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.7.3

  Means of egress

  • Rooftop pads need two exits; small pads may use a ladder or fire escape for the second.

  Works withIBC Chapter 10

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.7.4

  Rooftop heliports and helistops

  • Rooftop heliports follow NFPA 418.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.7.5

  Standpipe system

  • Standpipes extend to the roof.

  Works withIBC 905.3

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.1.1

  Type of construction

  • Tower height to cab floor: IA unlimited, IB 240 ft, IIA 100, IIB 85, IIIA 65.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.1.2

  Structural integrity of interior exit stairways and elevator hoistway enclosures

  • Cabs over 75 ft need 403.2.2 enclosures.

  Works withIBC 403.2.2

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.1.3

  Sprayed fire-resistive materials (SFRM)

  • Cabs over 75 ft need 403.2.3 SFRM bond strength.

  Works withIBC 403.2.3

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.2.1

  Stairways

  • Tower exit stairs are smokeproof enclosures.

  Works withIBC 1011IBC 909.20

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.2.2

  Exit access

  • Single exit access up to 100 ft from observation levels.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.2.3

  Number of exits

  • One exit stair allowed if 15 or fewer people and 1,500 sq ft or less per floor.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.3.1

  Automatic smoke detection systems

  • Smoke detection per 907.2.22.

  Works withIBC 907.2.22

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.3.2

  Fire command center

  • Cabs over 75 ft need a fire command center (150 sq ft, 10 ft minimum) with reduced features.

  Works withIBC 911

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.3.3

  Smoke removal

  • Smoke removal per 403.4.7.

  Works withIBC 403.4.7

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.4.1

  Fire pump room

  • Fire pumps in 2-hour rooms unless separated per NFPA 20.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.5.1

  Elevators for occupant evacuation

  • Added evacuation elevators follow 3008.

  Works withIBC 3008

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.3.6.1

  Hazardous operations

  • Group III hangars with doping, hot work, fuel work, spray finishing or large fuel loads need Group I or II suppression.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.3.6.2

  Separation of maximum single fire areas

  • Single fire areas are separated by 2-hour fire walls.

  Works withIBC 706IBC 707

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.5.8.1

  Class I, Division I hazardous locations

  • Within 10 ft of aircraft surfaces is Class I, Division 1.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.5.8.2

  Class I, Division 2 hazardous locations

  • From 10 to 30 ft of aircraft surfaces is Class I, Division 2.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.2.3.1

  Interior finish

  • With one exit stair, finishes Class A or B.

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 412.2.2.3.2

  Exit separation

  • In sprinklered towers, two exits need only one-quarter diagonal separation.

  Works withIBC 1007

  International Building Code, 2024 · Chapter 4, Special Detailed Requirements Based on Occupancy and UseRead the full text (opens UpCodes in a new tab)

• IBC 304.2

  Airport traffic control towers

  • Airport traffic control towers follow 412.2.

  Works withIBC 412.2

  International Building Code, 2024 · Chapter 3, Occupancy Classification and UseRead the full text (opens UpCodes in a new tab)

• IBC 312.3

  Residential aircraft hangars

  • Hangars accessory to a one- or two-family home follow 412.4.

  Works withIBC 412.4

  International Building Code, 2024 · Chapter 3, Occupancy Classification and UseRead the full text (opens UpCodes in a new tab)

• IBC 507.10

  Aircraft paint hangar

  • One-story H-2 aircraft paint hangars per 412.5 are unlimited with yards of 1½ × building height.

  Works withIBC 412.5

  International Building Code, 2024 · Chapter 5, General Building Heights and AreasRead the full text (opens UpCodes in a new tab)

• IBC 1412.6

  Wood structural panel soffit

  • Min performance category ⅜; nailing per Table 1412.6 (e.g. 30 psf: 24/0 span rating, 6d box at 6 in galvanized or 4 in stainless).

  International Building Code, 2024 · Chapter 14, Exterior WallsRead the full text (opens UpCodes in a new tab)

• IBC 1412.7

  Aluminum fascia

  • At least 0.019 in, attached per 1412.7.1 or 1412.7.2.

  International Building Code, 2024 · Chapter 14, Exterior WallsRead the full text (opens UpCodes in a new tab)

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.