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// CODE SNIPPET

Section 403 Minimum Plumbing Facilities

Plumbing Code 2015 of Utah > 4 Fixtures, Faucets and Fixture Fittings > 403 Minimum Plumbing Facilities
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403.1 Minimum Number of Fixtures

AMENDMENT
This section has been amended at the state or city level. Amendments are shown in green text.
Plumbing fixtures shall be provided in the minimum number as shown in Table 403.1, based on the actual use of the building or space. Uses not shown in Table 403.1 shall be considered individually by the code official. The number of occupants shall be determined by the International Building Code.

TABLE 403.1 MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURESa (See Sections 403.1.1 and 403.2) Table 403.1, Minimum Number of Required Plumbing Fixturesa, h

NO. CLASSIFICATION OCCUPANCY DESCRIPTION WATER CLOSETS
(URINALS: SEE
SECTION 419.2)
LAVATORIES BATHTUBS/
SHOWERS
DRINKING
FOUNTAIN
(SEE
SECTION
410)
OTHER
MALE FEMALE MALE FEMALE
1 Assembly A-1d Theaters and other buildings
for the performing arts
and motion pictures
1 per 125 1 per 65 1 per 200 ‒ 1 per 500 1 service
sink
A-2d Nightclubs, bars, taverns,
dance halls and buildings
for similar purposes
1 per 40 1 per 40 1 per 75 ‒ 1 per 500 1 service
sink
Restaurants, banquet halls
and food courts
1 per 75 1 per 75 1 per 200 ‒ 1 per 500 1 service
sink
A-3d Auditoriums without perma-
nent seating, art galleries,
exhibition halls, museums,
lecture halls, libraries,
arcades and gymnasiums
1 per 125 1 per 65 1 per 200 ‒ 1 per 500 1 service
sink
Passenger terminals and
transportation facilities
1 per 500 1 per 500 1 per 750 ‒ 1 per 1,000 1 service
sink
Places of worship and other
religious services
1 per 150 1 per 75 1 per 200 ‒ 1 per 1,000 1 service
sink


(continued)

TABLE 403.1 ‒continued MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURESa (See Sections 403.1.1 and 403.2)

NO. CLASSIFICATION OCCUPANCY DESCRIPTION WATER CLOSETS
(URINALS: SEE
SECTION 419.2)
LAVATORIES BATHTUBS/
SHOWERS
DRINKING
FOUNTAIN
(SEE
SECTION
410)
OTHER
MALE FEMALE MALE FEMALE
1
(cont.)
Assembly A-4 Coliseums, arenas, skat-
ing rinks, pools and ten-
nis courts for indoor
sporting events and
activities
1 per 75
for the
first 1,500
and 1 per
120 for the
remainder
exceeding
1,500
1 per 40
for the first
1,520 and
1 per 60
for the
remainder
exceeding
1,520
1 per
200
1 per
150
‒ 1 per 1,000 1 service
sink
A-5 Stadiums, amusement
parks, bleachers and
grandstands for outdoor
sporting events and
activities
1 per 75
for the
first 1,500
and 1 per
120 for the
remainder
exceeding
1,500
1 per 40
for the first
1,520 and
1 per 60
for the
remainder
exceeding
1,520
1 per
200
1 per
150
‒ 1 per 1,000 1 service
sink
2 Business B Buildings for the trans-
action of business, pro-
fessional services, other
services involving mer-
chandise, office build-
ings, banks, light
industrial and similar
uses
1 per 25 for the first 50
and 1 per 50 for the
remainder exceeding
50
1 per 40 for the
first 80 and 1
per 80 for the
remainder
exceeding 80
‒ 1 per 100 1 service
sinke
3 Educational E Educational facilities 1 per 50 1 per 50 ‒ 1 per 100 1 service
sinkg
4 Factory and
industrial
F-1 and F-2 Structures in which
occupants are engaged
in work fabricating,
assembly or processing
of products or materials
1 per 100 1 per 100 (see Sec-
tion 411)
1 per 400 1 service
sink
5 Institutional I-1 Residential care 1 per 10 1 per 10 1 per 8 1 per 100 1 service
sink
I-2 Hospitals, ambulatory
nursing home care
recipient
1 per roomc 1 per roomc 1 per 15 1 per 100 1 service
sink per
floor
Employees, other than
residential careb
1 per 25 1 per 35 ‒ 1 per 100 ‒
Visitors, other than resi-
dential care
1 per 75 1 per 100 ‒ 1 per 500 ‒
I-3 Prisonsb 1 per cell 1 per cell 1 per 15 1 per 100 1 service
sink
Reformitories, deten-
tion centers, and correc-
tional centersb
1 per 15 1 per 15 1 per 15 1 per 100 1 service
sink
Employeesb 1 per 25 1 per 35 ‒ 1 per 100 ‒
I-4 Adult day care and child
day care
1 per 15 1 per 15 1 1 per 100 1 service
sinkg


(continued)

TABLE 403.1 ‒continued MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURESa (See Sections 403.1.1 and 403.2)

NO. CLASSIFICATION OCCUPANCY DESCRIPTION WATER CLOSETS
(URINALS: SEE
SECTION 419.2)
LAVATORIES BATHTUBS/
SHOWERS
DRINKING
FOUNTAIN
(SEE
SECTION
410)
OTHER
MALE FEMALE MALE FEMALE
6 Mercantile M Retail stores,
service stations,
shops, salesrooms,
markets and shop-
ping centers
1 per 500 1 per 750 ‒ 1 per 1,000 1 service sinke
7 Residential R-1 Hotels, motels,
boarding houses
(transient)
1 per sleeping unit 1 per sleeping unit 1 per
sleeping
unit
‒ 1 service sink
R-2 Dormitories, frater-
nities, sororities
and boarding
houses (not tran-
sient)
1 per 10 1 per 10 1 per 8 1 per 100 1 service sink
R-2 Apartment house 1 per dwelling unit 1 per dwelling unit 1 per
dwelling
unit
‒ 1 kitchen sink
per dwelling
unit; 1 auto-
matic clothes
washer con-
nection per 20
dwelling units
R-3 Congregate living
facilities with 16 or
fewer persons
1 per 10 1 per 10 1 per 8 1 per 100 1 service sink
R-3 One- and two-fam-
ily dwellings and
lodging houses
with five or fewer
guestrooms
1 per dwelling unit 1 per dwelling unit 1 per
dwelling
unit
‒ 1 kitchen sink
per dwelling
unit; 1 auto-
matic clothes
washer con-
nection per
dwelling unit
R-4 Congregate living
facilities with 16 or
fewer persons
1 per 10 1 per 10 1 per 8 1 per 100 1 service sink
8 Storage S-1
S-2
Structures for the
storage of goods,
warehouses, store-
house and freight
depots. Low and
Moderate Hazard.
1 per 100 1 per 100 See
Section 411
1 per 1,000 1 service sink

a. The fixtures shown are based on one fixture being the minimum required for the number of persons indicated or any fraction of the number of persons indicated. The number of occupants shall be determined by the International Building Code.
b. Toilet facilities for employees shall be separate from facilities for inmates or care recipients.
c. A single-occupant toilet room with one water closet and one lavatory serving not more than two adjacent patient sleeping units shall be permitted provided that each patient sleeping unit has direct access to the toilet room and provision for privacy for the toilet room user is provided.
d. The occupant load for seasonal outdoor seating and entertainment areas shall be included when determining the minimum number of facilities required.
e. For business and mercantile occupancies with an occupant load of 15 or fewer, service sinks shall not be required.
f. When provided, in public toilet facilities, there shall be an equal number of diaper changing facilities in male toilet rooms and female toilet rooms. Diaper changing facilities shall meet the requirements of ASTM F2285-04 (2010) Standard Consumer Safety Performance Specifications for Diaper Changing Tables for Commercial Use.
g. Non-residential child care facilities shall comply with the additional requirements for sinks in administrative rule made by the Department of Health.

403.1.1 Fixture Calculations

To determine the occupant load of each sex, the total occupant load shall be divided in half. To determine the required number of fixtures, the fixture ratio or ratios for each fixture type shall be applied to the occupant load of each sex in accordance with Table 403.1. Fractional numbers resulting from applying the fixture ratios of Table 403.1 shall be rounded up to the next whole number. For calculations involving multiple occupancies, such fractional numbers for each occupancy shall first be summed and then rounded up to the next whole number.

Exception: The total occupant load shall not be required to be divided in half where approved statistical data indicates a distribution of the sexes of other than 50 percent of each sex.

403.1.2 Family or Assisted-Use Toilet and Bath Fixtures

Fixtures located within family or assisted-use toilet and bathing rooms required by Section 1109.2.1 of the International Building Code are permitted to be included in the number of required fixtures for either the male or female occupants in assembly and mercantile occupancies.

403.2 Separate Facilities

Where plumbing fixtures are required, separate facilities shall be provided for each sex.

Exceptions:

1. Separate facilities shall not be required for dwelling units and sleeping units.

2. Separate facilities shall not be required in structures or tenant spaces with a total occupant load, including both employees and customers, of 15 or fewer.

3. Separate facilities shall not be required in mercantile occupancies in which the maximum occupant load is 100 or fewer.

403.2.1 Family or Assisted-Use Toilet Facilities Serving as Separate Facilities

Where a building or tenant space requires a separate toilet facility for each sex and each toilet facility is required to have only one water closet, two family or assisted-use toilet facilities shall be permitted to serve as the required separate facilities. Family or assisted use toilet facilities shall not be required to be identified for exclusive use by either sex as required by Section 403.4.

403.3 Required Public Toilet Facilities

Customers, patrons and visitors shall be provided with public toilet facilities in structures and tenant spaces intended for public utilization. The number of plumbing fixtures located within the required toilet facilities shall be provided in accordance with Section 403 for all users. Employees shall be provided with toilet facilities in all occupancies. Employee toilet facilities shall be either separate or combined employee and public toilet facilities.

Exception: Public toilet facilities shall not be required in:

1. Open or enclosed parking garages where there are no parking attendants.

2. Structures and tenant spaces intended for quick transactions, including takeout, pickup and drop-off, having a public access area less than or equal to 300 square feet (28 m2).

403.3.1 Access

The route to the public toilet facilities required by Section 403.3 shall not pass through kitchens, storage rooms or closets. Access to the required facilities shall be from within the building or from the exterior of the building. Routes shall comply with the accessibility requirements of the International Building Code. The public shall have access to the required toilet facilities at all times that the building is occupied.

403.3.2 Prohibited Toilet Room Location

Toilet rooms shall not open directly into a room used for the preparation of food for service to the public.

403.3.3 Location of Toilet Facilities in Occupancies Other Than Malls

In occupancies other than covered and open mall buildings, the required public and employee toilet facilities shall be located not more than one story above or below the space required to be provided with toilet facilities, and the path of travel to such facilities shall not exceed a distance of 500 feet (152 m).

Exception: The location and maximum distances of travel to required employee facilities in factory and industrial occupancies are permitted to exceed that required by this section, provided that the location and maximum distance of travel are approved.

403.3.4 Location of Toilet Facilities in Malls

In covered and open mall buildings, the required public and employee toilet facilities shall be located not more than one story above or below the space required to be provided with toilet facilities, and the path of travel to such facilities shall not exceed a distance of 300 feet (91 m). In mall buildings, the required facilities shall be based on total square footage within a covered mall building or within the perimeter line of an open mall building, and facilities shall be installed in each individual store or in a central toilet area located in accordance with this section. The maximum distance of travel to central toilet facilities in mall buildings shall be measured from the main entrance of any store or tenant space. In mall buildings, where employees' toilet facilities are not provided in the individual store, the maximum distance of travel shall be measured from the employees' work area of the store or tenant space.

403.3.5 Pay Facilities

Where pay facilities are installed, such facilities shall be in excess of the required minimum facilities. Required facilities shall be free of charge.

403.3.6 Door Locking

Where a toilet room is provided for the use of multiple occupants, the egress door for the room shall not be lockable from the inside of the room. This section does not apply to family or assisted-use toilet rooms.

403.4 Signage

Required public facilities shall be provided with signs that designate the sex, as required by Section 403.2. Signs shall be readily visible and located near the entrance to each toilet facility. Signs for accessible toilet facilities shall comply with Section 1111 of the International Building Code.

403.4.1 Directional Signage

Directional signage indicating the route to the required public toilet facilities shall be posted in a lobby, corridor, aisle or similar space, such that the sign can be readily seen from the main entrance to the building or tenant space.

403.5 Drinking Fountain Location

Drinking fountains shall not be required to be located in individual tenant spaces provided that public drinking fountains are located within a distance of travel of 500 feet (152 m) of the most remote location in the tenant space and not more than one story above or below the tenant space. Where the tenant space is in a covered or open mall, such distance shall not exceed 300 feet (91 m). Drinking fountains shall be located on an accessible route.
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