Understanding and choosing the appropriate construction classifications plays a vital role in protecting all kinds of buildings and structures from fire and related dangers. NFPA 220, Standard on Types of Building Construction, helps define the category of building construction dependent on the fire resistance and combustibility rating of structural elements.

The 2024 edition includes:

• Revised requirements correlating with NFPA 5000 to create consistency between the two documents.
• Editorial revisions to better align the document with the Manual of Style for NFPA Technical Committee Documents
• Updates to referenced publications