ICC Cheat Sheet 2026

The 30 highest-yield ICC facts, distilled from real exam questions. Print it, save it as a PDF, or study it here — free, no sign-up.

1. Under the IBC, which Seismic Design Category (SDC) imposes the most stringent structural design and detailing requirements? → SDC F
2. What is the maximum travel distance allowed to reach a fire extinguisher in a typical commercial building? → 75 feet
3. Under the IPC, which venting method allows a single vent pipe to serve multiple fixtures on the same floor level without individual fixture vents? → Circuit vent
4. Which of the following describes the maximum allowed percentage of exterior wall openings for a building within 10 feet of a property line? → 10%
5. Which consensus standard is the primary reference for structural loads cited by the IBC? → ASCE 7
6. Which compliance pathway under IECC 2021 for commercial buildings allows trade-offs between envelope, lighting, and mechanical systems? → Total Building Performance (energy simulation)
7. What is the primary purpose of posting 'No Smoking' signs in areas where flammable liquids are dispensed? → To reduce ignition sources near flammable vapors
8. What is the minimum required fire separation distance for an exterior wall with no openings on a property used for Group A-2 occupancy? → 0 feet
9. A Heat Pump Water Heater (HPWH) achieves efficiency gains primarily through which mechanism? → Moving heat from surrounding air into the water rather than generating heat directly
10. Which approach is most effective for problem-solving in Building Codes? → Systematic analysis followed by evidence-based decision making
11. What is the minimum ceiling height for habitable spaces according to the International Building Code (IBC)? → 7 feet
12. A building's solar heat gain coefficient (SHGC) requirement is MOST directly related to which climate characteristic? → Annual cooling degree days
13. In ASHRAE 90.1, what is the primary method used to establish a baseline building model for the Energy Cost Budget path? → Appendix G Performance Rating Method
14. Under IECC 2021, what is the minimum continuous air barrier requirement for commercial buildings regarding tested leakage? → 0.25 cfm/ft² at 75 Pa
15. What is the minimum required illumination level at the floor level for means of egress lighting under the IBC? → 1 foot-candle
16. A tank containing Class I flammable liquid must be bonded and grounded during dispensing operations primarily to prevent what hazard? → Accumulation of static electricity and ignition of vapors
17. What is the purpose of a 'Certificate of Occupancy' issued by a building department? → To certify that a building meets all code requirements and is safe for its intended use
18. What type of pipe is typically required for gas supply lines in a building? → Black steel
19. In ASHRAE 90.1, what does the acronym 'EUI' stand for and how is it used? → Energy Use Intensity — annual energy use per square foot of floor area
20. In the IBC, what is the required minimum fire-resistance rating for a fire barrier separating a stairway enclosure from the rest of a building? → 1 hour
21. In the NEC, a multiwire branch circuit must have a means to simultaneously disconnect all ungrounded conductors at the: → Point where the circuit originates (panel)
22. The International Mechanical Code requires that factory-built fireplaces and their chimneys be listed and labeled and installed per: → The manufacturer's installation instructions and the IMC
23. According to the International Fire Code (IFC), how often must fire extinguishers be inspected by building personnel? → Monthly
24. What is the minimum uniformly distributed live load for office areas per IBC Table 1607.1? → 40 psf
25. What is the significance of documentation in Plumbing Codes? → It provides a record for accountability, quality assurance, and legal compliance
26. Which IBC Risk Category applies to essential facilities such as hospitals and fire stations that must remain operational after a disaster? → Risk Category IV
27. Under the IFC, which condition requires a building to have a fire command center? → High-rise buildings (75 feet or more above lowest fire department vehicle access)
28. What is the primary purpose of standardized procedures in Fire Safety Codes? → To ensure consistency, safety, and quality across all practitioners
29. What is the significance of documentation in Inspection Procedures? → It provides a record for accountability, quality assurance, and legal compliance
30. In seismic base shear calculations per ASCE 7, what does the 'R' factor represent? → The response modification factor reflecting a system's ductility and overstrength