CODES

ADOPTS WITH AMENDMENTS:

International Building Code 2009 (IBC 2009)

Chapter 1 Scope and Administration

Chapter 2 Definitions

Chapter 3 Use and Occupancy Classification

Chapter 4 Special Detailed Requirements Based on Use and Occupancy

Chapter 5 General Building Heights and Areas

Chapter 6 Types of Construction

Chapter 7 Fire and Smoke Protection Features

Chapter 8 Interior Finishes

Chapter 9 Fire Protection Systems

Chapter 10 Means of Egress

Chapter 11 Accessibility

Chapter 12 Interior Environment

Chapter 13 Energy Efficiency

Chapter 14 Exterior Walls

Chapter 15 Roof Assemblies and Rooftop Structures

Chapter 16 Structural Design

Chapter 17 Structural Tests and Special Inspections

Chapter 18 Soils and Foundations

Chapter 19 Concrete

Chapter 20 Aluminum

Chapter 21 Masonry

Chapter 22 Steel

Chapter 23 Wood

Chapter 24 Glass and Glazing

Chapter 25 Gypsum Board and Plaster

Chapter 26 Plastic

Chapter 27 ElectricalEMERGENCY AND STANDBY POWER

Chapter 28 Mechanical Systems

Chapter 29 Plumbing Systems

Chapter 30 Elevators and Conveying Systems

Chapter 31 Special Construction

Chapter 32 Encroachments Into the Public Right-Of-Way

Chapter 33 Safeguards During Construction

Chapter 34 Existing Structures

Chapter 35 Referenced Standards

Chapter 36 DOCKS, PIERS, BULKHEADS AND WATERWAY STRUCTURES

Appendix A Employee Qualifications

Appendix B Board of Appeals

Appendix C Group U - Agricultural Buildings

Appendix D Fire Districts

Appendix E Supplementary Accessibility Requirements

Appendix F Rodentproofing

Appendix G Flood-Resistant Construction

Appendix H Signs

Appendix I Patio Covers

Appendix J Grading

Appendix K Administrative Provisions

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. 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.

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 shown in Table 2902.1. Types of occupancies not shown in Table 2902.1 shall be considered individually by the building official. The number of occupants shall be determined by this code. Occupancy classification shall be determined in accordance with Chapter 3.

[P] TABLE 2902.1
MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURESa
(See Sections 2902.2 and 2902.3)

No.

CLASSIFICATION

OCCUPANCY

DESCRIPTION

WATER CLOSETS
(URINALS SEE SECTION 419.2 OF THE INTERNATIONAL PLUMBING CODE)J

LAVATORIESJ

BATHTUBS/
SHOWERS

DRINKING FOUNTAINSe, f
(SEE SECTION 410.1 OF THE INTERNATIONAL PLUMBING CODE)J

OTHERg

MALE

FEMALE

MALE

FEMALE

1

Assembly (see Sections 2902.2, 2902.5 and 2902.6)

A-1d

Theaters usually with fixed seats and other buildings for the performing arts and motion pictures

1 per 125

1 per 65

1 per 200

1 per 500

-

Theaters in K-12 schoolsi

1 per 125

1 per 100

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 sinkh

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 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 activitiesk

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-

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 1,000

-

(continued)

[P] TABLE 2902.1—continued
MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURESa

No.

CLASSIFICATION

OCCUPANCY

DESCRIPTION

WATER CLOSETS
(URINALS SEE SECTION 419.2 OF THE INTERNATIONAL PLUMBING CODE)J

LAVATORIESJ

BATHTUBS/
ORSHOWERS

DRINKING FOUNTAINSe, f
(SEE SECTION 410.1 OF THE INTERNATIONAL PLUMBING CODE)J

OTHERg

MALE

FEMALE

MALE

FEMALE

2

Business (see Sections 2902.2, 2902.4 and 2902.4.1)

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 501 per 25 for first 50 occupants and 1 per 50 for remaining occupants exceeding 50

1 per 40 for the first 80 and 1 per 80 for the remainder exceeding 801 per 40 for first 80 occupants and 1 per 80 for remaining occupants exceeding 80

1 per 100

25-100    1
101-250   2
251-500   3
add 1 per 500
exceeding 500

1 service sink-

3

Educationali

Eb

Educational facilitiesK-8 9 through 12 Teacher/Staff

1 per 501 per 25
1 per 30
1 per 30

1 per 25
1 per 25
1 per 25

1 per 50 1 per 60
1 per 100
1 per 100

1 per 100

1 service sink-

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 403.3.1 of the International Plumbing Code for adjustments in occupant content)

1 per 100(See OSHA 29 CFR paragraph 1910.14.1)

1 per 100 (See OSHA 29 CFR paragraph 1910.14.1)

See Section 411 of the International 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

Hospitals, ambulatory nursing home patientsband other health-care facilitiesc

1 per per roomc

Fixture requirements are regulated and enforced by
state licensing and certification jurisdictions only.

1 per per roomc

1 per 15

1 per 100

1 service sink

Employees, 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 centersbReformitories, 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 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 100

-

1 per 500

-

6

Mercantile (see Sections 2902.2, 2902.4, 2902.4.1, and 2902.4.2)

M

Retail stores, service stations, shops, salesrooms, markets and shopping centers

1 per 500

1 per 750

1 per 1,000100-1,000 1 greater than 1,000 require 1 more for each addition 1,000

1 service sink-

7

Residential

R-1

Hotels, motels, boarding houses (transient)

1 per sleeping unitguestroom

1 per sleeping unit guestroom

1 per sleeping unit guestroom

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

[P] TABLE 2902.1—continued
MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURESa

No.

CLASSIFICATION

OCCUPANCY

DESCRIPTION

WATER CLOSETS
(URINALS SEE SECTION 419.2 OF THE INTERNATIONAL PLUMBING CODE)J

LAVATORIESJ

BATHTUBS/
SHOWERS

DRINKING FOUNTAINSe, f
(SEE SECTION 410.1 OF THE INTERNATIONAL PLUMBING CODE)J

OTHERg

MALE

FEMALE

MALE

FEMALE

7

Residential

R-3l

Congregate living facilities with 16 or fewer persons

1 per 10dwelling unit

1 per 10dwelling unit

1 per 8dwelling unit

1 per 100-

1 service sink 1 kitchen sink per dwelling unitf

R-4

Residential care/unlicensed assisted living facilities

1 per 10

1 per 10

1 per 8

1 per 100-

1 service sink-

8

Storage (see Sections 2902., 2902.4 and 2902.4.1)

S-1
S-2

Structures for the storage of goods, warehouses, storehouses and freight depots, low and moderate hazardm,n

1 per 100

1 per 100

See Section 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 codeInternational Building Code.
  2. Toilet facilities for employees shall be separate from facilities for inmates, students or patients.
  3. A single-occupant toilet room with one water closet and one lavatory serving not more than two adjacent patient sleeping unitsrooms shall be permitted where such room is provided with direct access from each patient sleeping unit and with provisions for privacy.
  4. The occupant load for seasonal outdoor seating and entertainment areas shall be included when determining the minimum number of facilities required.
  5. The minimum number of required drinking fountains shall comply with Table 2902.1 and Chapter 11.The number of fixtures provided shall be based on either the capacity of the church sanctuary or the church educational building (including fellowhip halls and multiple purpose rooms), whichever is larger and within 300 feet (91.44 m).
  6. Drinking fountains are not required for an occupant load of 15 or fewer.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-storage facilities without an office area are exempt.
  14. Unheated storage buildings which are used periodically are not required to have toilet rooms.

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.


Exception:
  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 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 total residential units whose entries fall within 500 feet 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.
If an owner or tenant requests, the plumbing official shall make adjustments in the occupant content established by Table 2902.1 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 in Table 2902.1. Approval of such data and accompanying claims shall not prevent the plumbing official from requiring additional facilities based on Table 2902.1, if changes are made affecting the floor plan upon which the original approval was based, whether such changes are made by the original or ultimate owner or building occupant or occupants. The remainder of the facilities requirements of Section 2902 are not affected by this section.

2902.2 Separate Facilities

STATE AMENDMENT

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 less.
  3. Separate facilities shall not be required in mercantile occupancies in which the maximum occupant load is 50100 or less.
  4. Except as provided in Section 504.3.2 of the North Carolina Plumbing Code.
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 either be separate or combined employee and public toilet facilities. Public toilet facilities shall be located not more than one story above or below the space required to be provided with public toilet facilities and the path of travel to such facilities shall not exceed a distance of 500 feet (152 m).

2902.3.1 Access

STATE AMENDMENT
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. All 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.
Access to toilet facilities in occupancies other than mercantile and assembly occupancies shall be from within the employees’ 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 employees’ working area.
The required toilet facilities in occupancies other than assembly or mercantile shall be located not more than one story above or below the employee's working area and the path of travel to such facilities shall not exceed a distance of 500 feet (152 m).

Exception: The location and maximum travel distances to required employee toilet facilities in factory and industrial occupancies are permitted to exceed that required in Section 2902.4.1, provided that the location and maximum travel distance are approved by the code official.

In occupancies other than covered 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 (152 400 mm).

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

Employees shall be provided with toilet facilities in building and tenant spaces utilized as restaurants, nightclubs, places or public assembly and mercantile occupancies. The employee facilities shall be either separate facilities or combined employee and public facilities. The required toilet facilities shall be located not more than one story above or below the employees’ work area and the path of travel to such facilities, in other than covered malls, shall not exceed a distance of 500 feet (152 m). The path of travel to required facilities in covered malls shall not exceed a distance of 300 feet (91.44 m).

Exception: Employee toilet facilities shall not be required in tenant spaces where the travel distance from the main entrance of the tenant space to a central toilet area does not exceed 300 feet (91.44 m) and such central toilet facilities are located not more than one story above or below the tenant space.
In covered 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 (91 440 mm). In covered mall buildings, the required facilities shall be based on total square footage, and facilities shall be installed in each individual store or in a central toilet area located in accordance with this section. The maximum travel distance to the central toilet facilities in covered mall buildings shall be measured from the main entrance of any store or tenant space. In covered mall buildings, where employees’ toilet facilities are not provided in the individual store, the maximum travel distance shall be measured from the employees’ work area of the store or tenant space. In covered mall buildings, the path of travel to required toilet facilities shall not exceed a distance of 300 feet (91440 mm). Facilities shall be installed in each individual store or in a central toilet area located in accordance with this section. The maximum travel distance to the central toilet facilities in covered mall buildings shall be measured from the main entrance of any 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.

2902.4 Signage

STATE AMENDMENT
A legible sign designating the sex shall be provided in a readily visible location near the entrance to each toilet facility. Signs for accessible toilet facilities shall comply with ICC A117.1.
Directional signage indicating the route to the public facilities shall be posted in accordance with Section 3107. Such signage shall be located in a corridor or aisle, at the entrance to the facilities for customers and visitors.

2902.5 Multiplex theaters

STATE AMENDMENT
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.

2902.6.1 Occupant content

STATE AMENDMENT
Occupant content of public schools for the purpose of determining the number of required facilities shall be the maximum legal 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. Maximum class sizes are 29 students for grades K through 9 and 33 students for grades 10-12. (GS 115C-301). The occupant load for private schools shall be as listed in Table 1004.1.1 of this code.
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.
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 70-percent female and 30-percent male.
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 (122 m) feet of the closest bleacher exit from each set of bleachers that the facility serves.
A single unisex facility may be used when the classroom area served is 1200 square feet (112 m2) or less and is used either for grades K through 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.
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.

2902.6.5.3 Substitutions

STATE AMENDMENT
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.
Toilet rooms may be omitted in a modular classroom building when facilities of sufficient capacity for the additional occupants are provided in an adjacent building and located within 200 feet (61 m) of horizontal travel distance from the modular classroom.
Toilet rooms may be omitted in modular classroom buildings grades 9 through 12 when these temporary buildings are to be replaced by permanent facilities which are under contract. Facilities of sufficient capacity for the additional occupants shall be provided within 450 feet (137.16 m) of horizontal travel distance from the modular classroom.

Each water closet utilized by the public or employees shall occupy a separate compartment with walls or partitions and a door enclosing the fixtures to ensure privacy.

Exceptions:

  1. Water closet compartments shall not be required in a single-occupant toilet room with a lockable door.
  2. Toilet rooms located in day care and child care facilities and containing two or more water closets shall be permitted to have one water closet without an enclosing compartment. In toilet rooms in child care facilities in areas used exclusively by children five years of age and under, the following is permitted:
    1. Toilet stall enclosures, toilet stall doors and partitions between toilets may be omitted.
    2. Doors into toilet rooms may be omitted.
    3. Walls enclosing toilet rooms may be full height with vision panels, or may be partial height at least 42 inches (1067 mm) high in areas for children four and five years of age and 36 inches (914 mm) high in areas for children under four years of age.
  3. This provision is not applicable to toilet areas located within Group I-3 housing areas.

Each urinal utilized by the public or employees shall occupy a separate area with walls or partitions to provide privacy. The walls or partitions shall begin at a height not more than 12 inches (305 mm) from and extend not less than 60 inches (1524 mm) above the finished floor surface. The walls or partitions shall extend from the wall surface at each side of the urinal a minimum of 18 inches (457 mm) or to a point not less than 6 inches (152 mm) beyond the outermost front lip of the urinal measured from the finished back wall surface, whichever is greater.

Exceptions:

1. Urinal partitions shall not be required in a single occupant or family or assisted use toilet room with a lockable door.

2. Toilet rooms located in day care and child care facilities and containing two or more urinals shall be permitted to have one urinal without partitions.

Interior finish surfaces of toilet rooms shall comply with Section 1210.
Resources
Help us
keep law free