Decoded 3 Exercise – Classification of Occupancy
Identify the occupancy classification (NFPA 101) and the use group (IBC) for each of the following types
of buildings. Try it without looking at the examples in Annex A of NFPA 101.
Building Type
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
Library
Assisted Living Facility
Dentist’s Office
Ice Skating Rink
Hospital
Airport Terminal
Hotel
Prison
Halloween Haunted House (100 people)
Day Care Center (80 children)
Day Care Center (120 children)
Synagogue
Barn (for livestock)
Dormitory
Coffee Shop (occupant load of 40)
Gasoline Storage Facility
College Classroom (occupant load of 60)
Dry Cleaning Plant
Apartment Building
Grocery Store
Restaurant
School
Parking Garage
Substance Abuse Rehab Facility
Nursing Home
Museum
Office Building
Glass Manufacturing Facility
Theater
Post Office
Stadium
Office Conference Room (45 people)
NFPA 101
IBC
Answers:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
Building Type
NFPA 101
IBC
Library
Assisted Living Facility
Dentist’s Office
Ice Skating Rink
Hospital
Airport Terminal
Hotel
Prison
Halloween Haunted House (100 people)
Day Care Center (80 children)
Day Care Center (120 children)
Synagogue
Barn (for livestock)
Dormitory
Coffee Shop (occupant load of 40)
Gasoline Storage Facility
College Classroom (occupant load of 60)
Dry Cleaning Plant
Apartment Building
Grocery Store
Restaurant
School
Parking Garage
Substance Abuse Rehab Facility
Nursing Home
Museum
Office Building
Glass Manufacturing Facility
Theater
Post Office
Stadium
Office Conference Room (45 people)
Assembly
Res. Board & Care
Business
Assembly
Health Care
Assembly
Residential
Detention/Correctional
Assembly
Day Care
Day Care
Assembly
Storage
Residential
Mercantile
High Hazard Industrial
Assembly
Industrial
Residential
Mercantile
Assembly
Educational
Storage
Detention and Correctional
Health Care
Assembly
Business
Industrial
Assembly
Business
Assembly
Business
A-3
I-1
B
A-4
I-2
A-3
R-1
I-3
A-3
E
I-4
A-3
U
R-2
B
H*
A-3
F-1
R-2
M
A-2
E
S-2
I-1
I-2
A-3
B
F-2
A-1
B
A-5
B
*Refer to IBC to determine subcategories of High Hazard occupancies.
Notes about Multiple, Mixed, and Separated Occupancies:
Multiple Occupancy – Two or more classes of occupancy exist. Two subclassifications:


Mixed Occupancy – A multiple occupancy where the occupancies are intermingled. Each
portion of the building is classified by its use. The most restrictive fire and life safety
requirements apply to the whole building.
Separated Occupancy – A multiple occupancy where the occupancies are separated by fire
resistance rated assemblies. Each part of the building is treated as the applicable occupancy
classification.