TABLE 1004.3.2.1

CORRIDOR FIRE-RESISTANCE RATING

OCCUPANCY	
OCCUPANT 
LOAD
SERVED BY CORRIDOR	
REQUIRED FIRE-RESISTANCE
RATING (hours)	
		
Without
sprinkler system	
With
sprinkler systemc	

H-1, H-2, H-3	
All	
1	
1	

A, H-4, H-5	
Greater than 30	
1	
1	

A, B, D, E, F, M, S, U  [Revised 1/13/04]	
Greater than 30	
1	
0	

R	
Greater than 10	
1	
1	

I-2a, I-4	
All	
Not Permitted	
0	

I-1, I-3	
All	
Not Permitted	
1b	

a. For requirements for occupancies in Group I-2, see Section 407.3.
b. For a reduction in the fire-resistance rating for occupancies in Group I-3, see Section 408.7.
c. Buildings equipped throughout with an automatic sprinkler system in accordance with Section 903.3.1.1 or 903.3.1.2.