International Building Code Section 310


International Building Code 310.1

Residential Group R. Residential Group R includes,
among others, the use of a building or structure, or a portion
thereof, for sleeping purposes when not classified as an Institutional
Group I or when not regulated by the International Residential
Code in accordance with Section 101.2. Residential
occupancies shall include the following:
R-1 Residential occupancies containing sleeping units
where the occupants are primarily transient in nature,
including:
Boarding houses (transient)
Hotels (transient)
Motels (transient)
R-2 Residential occupancies containing sleeping units or
more than two dwelling units where the occupants are
primarily permanent in nature, including:
Apartment houses
Boarding houses (not transient)
Convents
Dormitories
Fraternities and sororities
Hotels (nontransient)
Monasteries
Motels (nontransient)
Vacation timeshare properties
Congregate living facilities with 16 or fewer occupants
are permitted to comply with the construction
requirements for Group R-3.
R-3 Residential occupancies where the occupants are primarily
permanent in nature and not classified as Group
R-1, R-2, R-4 or I, including:
Buildings that do not contain more than two dwelling
units.
Adult facilities that provide accommodations for
five or fewer persons of any age for less than 24
hours.
Child care facilities that provide accommodations for
five or fewer persons of any age for less than 24
hours.
Congregate living facilities with 16 or fewer persons.
Adult and child care facilities that are within a single-
family home are permitted to comply with the
International Residential Code.
R-4 Residential occupancies shall include buildings
arranged for occupancy as residential care/assisted living
facilities including more than five but not more than
16 occupants, excluding staff.
Group R-4 occupancies shall meet the requirements
for construction as defined for Group R-3,
except as otherwise provided for in this code, or shall
comply with the International Residential Code.

International Building Code 310.2

Definitions. The followingwords and terms shall, for the
purposes of this section and as used elsewhere in this code,
have the meanings shown herein.
BOARDING HOUSE. A building arranged or used for lodging
for compensation, with or without meals, and not occupied
as a single-family unit.
34 2006 INTERNATIONAL BUILDING CODE
USE AND OCCUPANCY CLASSIFICATION
CONGREGATE LIVING FACILITIES. A building or part
thereof that contains sleeping units where residents share bathroom
and/or kitchen facilities.
DORMITORY. A space in a building where group sleeping
accommodations are provided in one room, or in a series of
closely associated rooms, for persons not members of the same
family group, under joint occupancy and single management,
as in college dormitories or fraternity houses.
PERSONALCARESERVICE. The care of residents who do
not require chronic or convalescent medical or nursing care.
Personal care involves responsibility for the safety of the resident
while inside the building.
RESIDENTIAL CARE/ASSISTED LIVING FACILITIES.
Abuilding or part thereof housing persons, on a 24-hour
basis, who because of age, mental disability or other reasons,
live in a supervised residential environment which provides
personal care services. The occupants are capable of responding
to an emergency situation without physical assistance from
staff. This classification shall include, but not be limited to, the
following: residential board and care facilities, assisted living
facilities, halfway houses, group homes, congregate care facilities,
social rehabilitation facilities, alcohol and drug abuse centers
and convalescent facilities.
TRANSIENT. Occupancy of a dwelling unit or sleeping unit
for not more than 30 days.