A recent revision to UFC 3-600-01, effective March 2013, may significantly impact how fire ratings are determined on Department of Defense projects.
Per UFC 1-200, all fire resistance requirements must follow both IBC Chapter 7 and UFC 3-600-01. In the event of a conflict between the two, the UFC takes precedence.
Historically, buildings such as barracks and hangars were governed by Chapter 6 – Special Occupancies, which allowed the use of sprinkler systems designed solely in accordance with NFPA 13. This approach often aligned seamlessly with IBC, resulting in minimal conflict over fire rating compliance.
However, the March 2013 update to Chapter 6 now states that its requirements are in addition to the fire protection requirements listed in the first five chapters of the UFC. This change is critical, as Chapter 4 now includes tables and criteria that specify sprinkler design methods and minimum required fire resistance ratings based on flow duration.
As a result, conflicts between IBC fire ratings and the updated UFC requirements are now more likely. Since the UFC takes precedence, assuming IBC compliance is sufficient may lead to non-compliance.
Key Takeaway
If you’re conducting a code review or life safety analysis for a new federal or military project, it is essential to consult the most current version of UFC 3-600-01 and coordinate with a qualified Fire Protection Engineer. Early review will help avoid costly redesigns or fire safety compliance issues.