NFPA 220:2021

Chapter 1 Administration 1.1 Scope. 1.2 Purpose. 1.3 Application. (Reserved) 1.4 Retroactivity. 1.5 Equivalency. 1.6 Units. Chapter 2 Referenced Publications 2.1 General. 2.2 NFPA Publications. 2.3 Other Publications. 2.4 References for Extracts in Mandatory Sections. Chapter 3 Definitions 3.1 General. 3.2 NFPA Official Definitions. 3.3 General Definitions. Chapter 4 Types of Construction 4.1 General. 4.2 Reserved. 4.3 Type I (442 or 332) and Type II (222, 111, or 000) Construction. 4.4 Type III (211 or 200) Construction. 4.5 Type IV (2HH) Construction. 4.6 Type V (111 or 000) Construction. Chapter 5 Fire Resistance Rating Requirements for Structural Elements 5.1 Fire Resistance Rating Requirements. Annex A Explanatory Material Annex B Informational References

This standard defines types of building construction based on the combustibility and the fire resistance rating of a building’s structural elements.