CODES

ADOPTS WITH AMENDMENTS:

International Building Code 2015 (IBC 2015)

Heads up: There are no suggested sections in this chapter.
Heads up: There are no amended sections in this chapter.
The provisions of this chapter and the International Plumbing Code shall govern the erection, installation, alteration, repairs, relocation, replacement, addition to, use or maintenance of plumbing equipment and systems. Toilet and bathing rooms shall be constructed in accordance with Section 1210. Plumbing systems and equipment shall be constructed, installed and maintained in accordance with the International Plumbing Code. Private sewage disposal systems shall conform to the International Private Sewage Disposal Code.

Section 2902 Minimum Plumbing Facilities

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[P] 2902.1 Minimum Number of Fixtures

AMENDMENT
This section has been amended at the state or city level.

In new construction or building additions and in changes of occupancy as defined in the North Carolina Building Code, Plumbing fixtures shall be provided for the type of occupancy and in the minimum number as shown in Table 2902.1 based on the actual use of the building or space. Uses not shown in Table 2902.1 shall be considered individually by the code official. The number of occupants shall be determined by this code Section 1004. Occupancy classification shall be determined in accordance with Chapter 3.

[P] TABLE 2902.1
MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURESa, p (See Sections 2902.1.1 and 2902.2)
No. CLASSIFICATION OCCUPANCY DESCRIPTION WATER CLOSETS
(URINALS SEE
SECTION 419.2 OF
THE INTERNATIONAL
PLUMBING CODE)
LAVATORIES BATHTUBS/
SHOWERS
DRINKING
FOUNTAINS
(SEE SECTION
410 OF THE
INTERNATIONAL
PLUMBING
CODE)
OTHER
Male Female Male Female
1 Assembly
(See Sections 2902.2, 2902.3 and 2902.3.2.2)
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
Theaters in K-12 Schoolsi 1 per 125 1 per 100 1 per 200 1 per 500 1 service sink
A-2d Nightclubs, bars, tav-
erns, 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
Cafeterias in K-12 Schoolsi 1 per 125 1 per 100 1 per 200 1 per 500 1 service sink
A-3d Auditoriums without
permanent 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
Gymnasiums in K-12 Schoolsi 1 per 125 1 per 100 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. Churches without assembly hallse
1 per 150 1 per 75 1 per 200 1 per 1,000 1 service
sink
A-4 Coliseums, arenas,
skating rinks,
pools and tennis
courts for indoor
sporting events and
activitiesk
1 per 75 for
the first
1,500 and 1
per 120 for
the remain-
der excee-
ding 1,500
1 per 40 for
the first
1,520 and 1
per 60 for
the remain-
der exceed-
ing 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 remain-
der exceed-
ing 1,500
1 per 40 for
the first
1,520 and 1
per 60 for
the remain-
der exceed-
ing 1,520
1 per
200
1 per
150
1 per 1,000 1 service sink
K-12 Stadiums, bleachers and grandstands for outdoor sporting events and activitiesi,k 1 per 125 1 per 100 1 per 250 1 per 200 1 per 1000
2 Business (See Sections 2902.2, 2902.3 and 2902.3.2.2) B Buildings for the
transaction of business,
professional services,
other services
involving merchandise,
office buildings,
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 100q 1 service sinkeo
3 Educational Eb Educational
facilities
K-8
1 per 50 1 per 25 1 per 25 1 per 50 1 per 60 1 per 100 1 service sink
9—12 1 per 30 1 per 25 1 per 100
Teacher/staff 1 per 30 1 per 25 1 per 100
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 (See Section 2902.3.1 for adjustments in occupant content)
1 per 100 1 per 100 See Section
411 of
the International North Carolina
Plumbing
Code
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 Hospitalsb , ambulatory
nursing home
care recipientb
1 per roomc Fixture requirements are regulated and enforced by state licensing
and certification jurisdictions only
1 per roomc 1 per 15 1 per 100 1 service sink
  Employeesb , other
than residential
careb
1 per 25 1 per 35 1 per 100
  Visitors , other than
residential care
1 per 75 1 per 100 1 per 500
I-3 Prisonsb 1 per cell Fixture requirements are regulated and enforced by state licensing
and certification jurisdictions only
1 per cell 1 per 15 1 per 100 1 service sink
I-3 Reformatories,
detention centers
and correctional centersb
1 per 15 Fixture requirements are regulated and enforced by state licensing
and certification jurisdictions only
1 per 15 1 per 15 1 per 100 1 service sink
Employeesb 1 per 25 1 per 35 1 per 100
Visitors 1 per 75 1 per 100 1 per 500
I-4 Adult day care and
child day care
1 per 15 Fixture requirements are regulated and enforced by state licensing and certification jurisdictions only 1 per 15 1 1 per 100 1 service sink
Child Careb 1 per 15 1 per 25
Employees 1 per 25 1 per 35 1 per 100
Visitors 1 per 75   1 per 500
6 Mercantile (See Sections 2902.2, 2902.3 and 2902.3.2.2) M Retail stores, service
stations,
shops, salesrooms,
markets and shopping
centers
1 per 500 1 per 750 1 per 1,000 100 — 1,000 1 greater than 1,000 required 1 more for each additional 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, fraternities,
sororities
and boarding
houses (not transient)
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 automatic
clothes washer connection
per 20 dwelling units
R-3l One- and two-family
dwellings and
lodging houses
with five or fewer
guest rooms
1 per dwelling
unit
1 per 10 1 per
dwelling
unit
1 kitchen sink
per dwelling
unit; 1 automatic
clothes washer connection
per dwelling unitf
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-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-
houses and freight
depots, low and
moderate hazardm, n
1 per 100 1 per 100 See Sec tion
411
of the
International
Plumbing Code
1 per 1,000 1 service sink

 

  1. 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 this code.
  2. Toilet facilities for employees shall be separate from facilities for inmates or care recipients.
  3. 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 provisions for privacy for the toilet room user are provided.
  4. The occupant load for seasonal outdoor seating and entertainment areas shall be included when determining the minimum number of facilities required.
  5. For business and mercantile occupancies with an occupant load of 15 or fewer, service sinks shall not be required. The number of fixtures provided shall be based on either the capacity of the church sanctuary or the church educational building (including fellowship halls and multiple purpose rooms), whichever is larger and within 300 feet (91.44 m).
  6. For attached one- and two- family dwellings, one automatic clothes washer connection shall be required per 20 dwelling units.
  7. A mop receptacle with a water supply, or a hose bib and floor drain, may be used in lieu of a service sink.
  8. A can wash may be used in lieu of a service sink.
  9. See Section 2902.9 for additional information on plumbing fixtures for schools.
  10. When the rearrangement of an area or space increases the occupant content, the plumbing facilities shall be increased in accordance with this code.
  11. For baseball stadiums, the number of fixtures shall be reduced by 50 percent.
  12. Service sink may be omitted when located within a single-family dwelling.
  13. Self-service mini-service facilities without an office area are exempt.
  14. Unheated storage buildings that are used periodically are not required to have toilet rooms.
  15. For business and mercantile occupant loads of 25 or fewer, service sinks shall not be required.
  16. See Section 2902.7 for adjustments in occupant count.
  17. For business occupant loads of 25 or fewer, drinking fountains shall not be required.

[Note: This Rule will also be printed in the 2018 NC Plumbing Code, Table 403.1 MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURES.]

UpCodes note: The delayed effective date of footnote q is January 1, 2020. The Statutory authority for Rule-making is G. S. 143-136; 143-138.

[P] 2902.1.1 Fixture Calculations

AMENDMENT
This section has been amended at the state or city level.
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 2902.1 403.1. Fractional numbers resulting from applying the fixture ratios of Table 2902.1 403.1 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.

Exceptions:
  1. 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.
  2. In buildings that contain dwellings or sleeping units that have a pool dedicated to the residents, a percentage reduction of the total required fixtures provided for a pool and pool deck without bleachers and grandstands may be taken equal to the percentage of residential units whose entries fall within a 500 foot horizontal travel distance of the pool deck. In multi-story structures, the residential units located not more than one story above or below the pool and pool deck may be included in the percentage. Travel from the pool to the required toilet facilities shall be on an accessible route.
UpCodes note: The delayed effective date of this Rule is January 1, 2019. The Statutory authority for Rule-making is G. S. 143-136; 143-138. Table 403.1 referenced in this section can be found in the International Plumbing Code. Previously, the section was:

"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 2902.1. Fractional numbers resulting from applying the fixture ratios of Table 2902.1 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.

Exceptions:
  1. The total occupant load shall not be required to be divided in half where approved statistical data indicate a distribution of the sexes of other than 50 percent of each sex.
  2. In buildings that contain dwelling or sleeping units that have a pool dedicated to the residents, a percentage reduction of the total required fixtures provided for a pool and pool deck without bleachers and grandstands may be taken equal to the percentage of total residential units whose entries fall within 500 feet (152 m) of the pool deck."
Fixtures located within family or assisted-use toilet and bathing rooms required by Section 1109.2.1 are permitted to be included in the number of required fixtures for either the male or female occupants in assembly and mercantile occupancies.

[P] 2902.2 Separate Facilities

AMENDMENT
This section has been amended at the state or city level.
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 1525 or fewer.
  3. Separate facilities shall not be required in mercantile occupancies in which the maximum occupant load is 100 or less.
  4. Except as provided in Section 405.3.2 of the North Carolina Plumbing Code.
  5. Where the code requires only one toilet facility for each sex, two unisex facilities may be substituted for separate sex 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 2902.4.
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 2902.1 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).
The route to the public toilet facilities required by Section 2902.3 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 this code. The public shall have access to the required toilet facilities at all times that the building is occupied.
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.

2902.3.2.1 Location of Employee Toilet Facilities in Occupancies Other Than Assembly or Mercantile

AMENDMENT
This section has been amended at the state or city level.
Access to toilet facilities in occupancies other than mercantile and assembly occupancies shall be from within the employee's working area.

Employee facilities shall be either separate facilities or combined employee and public facilities.

Exception: Facilities that are required for employees in storage structures or kiosks, and are located in adjacent structures under the same ownership, lease or control, shall be a maximum travel distance of 500 feet (152 m) from the employee's working area.

2902.3.2.2 Location of Employee Toilet Facilities in Mercantile and Assembly Occupancies

AMENDMENT
This section has been amended at the state or city level.
Employees shall be provided with toilet facilities in buildings and tenant spaces utilized as restaurants, nightclubs, places of public assembly and mercantile occupancies. The employee facilities shall be either separate facilities or combine employee and public facilities.
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 mm). In mall buildings, the required facilities shall be based on total square footage (m2) 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.
Where pay facilities are installed, such facilities shall be in excess of the required minimum facilities. Required facilities shall be free of charge.
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.
Toilet rooms shall not open directly into a room used for the preparation of food for service to the public.
Required public facilities shall be provided with signs that designate the sex as required by Section 2902.2. Signs shall be readily visible and located near the entrance to each toilet facility. Signs for accessible toilet facilities shall comply with Section 1111.
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.
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 (91 440 mm). Drinking fountains shall be located on an accessible route.
Drinking fountains shall not be required for an occupant load of 15 or fewer.

2902.7 Adjustments in Occupant Content

AMENDMENT
This section has been amended at the state or city level.
If an owner or tenant requests, the plumbing official shall make adjustments in the occupant content established by Table 403.1 of the North Carolina Plumbing Code for manufacturing, workshops, loft building, foundries, storage, aircraft hangars, garages and similar establishments. The owner or occupant shall provide written data accompanied by plans that substantiates a claim that the occupant content of a particular building or tenancy will, at all times, be less than provided for in Table 403.1. Approval of such data and accompanying claims shall not prevent the plumbing official from requiring additional facilities based on Table 403.1, should changes be made affecting the floor plan on which the original approval was based whether such changes be made by the original or ultimate owner or building occupant or occupants. The remainder of the facilities requirements of Section 403.2 of the North Carolina Plumbing Code are not affected by this paragraph.

2902.8 Multiplex Theaters

AMENDMENT
This section has been amended at the state or city level.
Plumbing fixtures for multiple adjoining motion picture theaters with a common lobby shall be based upon the seating capacity of the largest single auditorium plus 50 percent of the seats in the remaining auditoriums.

2902.9 Plumbing Fixtures for Public Schools

AMENDMENT
This section has been amended at the state or city level.

2902.9.1 Occupant Content

AMENDMENT
This section has been amended at the state or city level.
Occupant content of public schools for the purpose of determining the number of required facilities shall be the maximum design class size multiplied by the number of classrooms. A public school classroom is a room or space 500 square feet (46.5 m2) or larger normally used for instructional purposes. The maximum design class sizes are 29 students for grades K through 8 and 33 students for grades 9 through 12. The occupant load for private schools shall be as listed in Table 1004.1.2 of the North Carolina Building Code.

2902.9.2 Occupant Load and Distance

AMENDMENT
This section has been amended at the state or city level.
The total student occupant load shall be the sum of the occupant loads for all classrooms, labs, shops and vocational spaces. The total occupant load for all buildings on a campus may be utilized when calculating the total number of fixtures required. Toilet facilities for students and teachers may be located in an adjacent building but shall be located so that no person will have more than 200 feet (61 m) of accessible, covered horizontal travel distance from any classroom lab, shop or vocational space closest door for access to the required number of fixtures. The occupant content of kindergarten and first grade classrooms with internal toilet facilities is not required to be used in determining the number of group facilities for the entire school.

2902.9.3 Occupant Load for Teachers and Staff

AMENDMENT
This section has been amended at the state or city level.
Fixtures provided for teachers and staff shall be determined by multiplying the number of classrooms by 1.75. Staffing ratio for grades K through 8 is 80-percent female and 20- percent male. Staffing ratio for grades 9 through 12 is 70- percent female and 30-percent male.

2902.9.4 Gymnasiums, Cafeterias, Auditoriums and Stadiums for Schools

AMENDMENT
This section has been amended at the state or city level.
Fixtures in group toilet facilities provided for classroom areas may be used toward satisfying the total number of required fixtures for gymnasiums, cafeterias and auditoriums provided that such facilities are located within 200 feet (61 m) from the space and cannot be locked off from access during after-school-hours' use of the gymnasium, cafeteria or auditorium. Simultaneous use of classrooms, gymnasium, cafeteria or auditoriums shall not be considered for calculation of occupant loads for toilet fixtures. Stadium facilities shall be located within 400 feet (122 m) of the closest bleacher exit from each set of bleachers that the facility serves.

2902.9.5 Miscellaneous Provisions

AMENDMENT
This section has been amended at the state or city level.

2902.9.5.1 Unisex Facilities

AMENDMENT
This section has been amended at the state or city level.
A single unisex facility may be used when the classroom area served is 1,200 square feet (112 m2) or less and is used either for K through grade 2 or is a modular classroom used for any grade level. Unisex facilities may be provided for teacher/staff if their total occupant load within 200 feet (61 m) is 15 or less.

2902.9.5.2 Student Group Facilities

AMENDMENT
This section has been amended at the state or city level.
Every public school group facility shall have a minimum of four flushing type fixtures. Four flushing male group toilets shall have a minimum of two water closets.

2902.9.5.3 Substitutions

AMENDMENT
This section has been amended at the state or city level.
Water closets may be substituted for urinals for grades K through 2. Urinals may be substituted for water closets in male group toilet rooms for teachers/staff and gyms, auditoriums, cafeterias or stadiums. The number of water closets shall not be reduced to less than one-third of the required total number of flushing fixtures.

2902.9.5.4 Modular Classroom Buildings

AMENDMENT
This section has been amended at the state or city level.
Toilet rooms may be omitted in a modular classroom building when facilities of sufficient capacity for the additional occupants are provided.
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