ADOPTS WITH AMENDMENTS:

International Plumbing Code 2009 (IPC 2009)

Heads up: There are no amended sections in this chapter.
This chapter shall govern the materials, design and installation of plumbing fixtures, faucets and fixture fittings in accordance with the type of occupancy, and shall provide for the minimum number of fixtures for various types of occupancies.
Water closets having a concealed trap seal or an unventilated space or having walls that are not thoroughly washed at each discharge in accordance with ASME A112.19.2M shall be prohibited. Any water closet that permits siphonage of the contents of the bowl back into the tank shall be prohibited. Trough urinals shall be prohibited.
The maximum water flow rates and flush volume for plumbing fixtures and fixture fittings shall comply with Section 604.4.
Plumbing fixtures shall be constructed of approved materials, with smooth, impervious surfaces, free from defects and concealed fouling surfaces, and shall conform to standards cited in this code. All porcelain enameled surfaces on plumbing fixtures shall be acid resistant.
Materials for specialty fixtures not otherwise covered in this code shall be of stainless steel, soapstone, chemical stoneware or plastic, or shall be lined with lead, copper-base alloy, nickel-copper alloy, corrosion-resistant steel or other material especially suited to the application for which the fixture is intended.
Sheet copper for general applications shall conform to ASTM B 152 and shall not weigh less than 12 ounces per square foot (3.7 kg/m2).
Sheet lead for pans shall not weigh less than 4 pounds per square foot (19.5 kg/m2) coated with an asphalt paint or other approved coating.

403.1 Minimum Number of Fixtures

Amendment
This section has been amended by the state, county, or city.
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 403.1. Types of occupancies 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. Occupancy classification shall be determined in accordance with the International Building Code.

TABLE 403.1
MINIMUM NUMBER OF REQUIRED PLUMBING FIXTURESa
(See Sections 403.2 and 403.3)
NO. CLASSIFICATION OCCUPANCY DESCRIPTION WATER CLOSETS (URINALS
SEE SECTION 419.2)J
LAVATORIESJ BATHTUBS/
SHOWERS
DRINKING
FOUNTAINe,f
(SEE
SECTION 410.1)J
OTHERg
MALE FEMALE MALE FEMALE
1 Assembly
(see Sections
403.2, 403.5 and
403.6)
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 -
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 -
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 -
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
1 per 40 for the
first 1,520 and
1 per 60 for the
remainder
1 per 200 1 per 150 - 1 per 1,000 -
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
1 per 40 for the
first 1,520 and
1 per 60 for the
remainder
1 per 200 1 per 150 - 1 per 1,000 -
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 -
2 Business
(see Sections 403.2,
403.4 and 403.6)
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 first 50 occupants
and 1 per 50 for remaining
occupants exceeding 50
1 per 40 for first 80
occupants and 1 per 80
for remaining
occupants exceeding 80
- 25-100 1
101-250 2
251-500 3
add 1 per 500
exceeding 500
-
3 Educationali E b K-8
9 through 12
Teacher/Staff
1 per 25
1 per 30
1 per 30
1 per 25
1 per 25
1 per 25
1 per 60
1 per 100
1 per 100
- 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 403.3.1
for adjustments in
occupant content)
(See OSHA 29
CFR paragraph 1910.141)
(see
Section
411)
1 per 400 -
5 Institutional I-1 Residential care 1 per 10 1 per 10 1 per 8 - -
I-2 Hospitals and other
health-care
facilitiesc
Fixture requirements are regulated and enforced by
state licensing and certification jurisdictions only.
Employees 1 per 25 1 per 35 - 1 per 100 -
Visitors 1 per 75 1 per 100 - 1 per 500 -
I-3 Prisonsb Fixture requirements are regulated and enforced by
state licensing and certification jurisdictions only.
Reformitories,
detention centers,
and correctional
centersb
Fixture requirements are regulated and enforced by
state licensing and certification jurisdictions only.
Employees 1 per 25 1 per 35 - 1 per 100 -
Visitors 1 per 75 1 per 100 - 1 per 500 -
I-4 Adult day care Fixture requirements are regulated and enforced by
state licensing and certification jurisdictions only.
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 403.2,
403.5, 403.6)
M Retail stores,
service stations,
shops, salesrooms,
markets and
shopping centers
1 per 500 1 per 750 - 100 - 1,000 1
greater than
1,000 require 1
more for each
additional
1,000
-
7 Residential R-1 Hotels, motels,
boarding houses
(transient)
1 per guestroom 1 per guestroom 1 per
guestroom
- -
R-2 Dormitories,
fraternities,
sororities and
boarding houses
(nontransient)
1 per 10 1 per 10 1 per 8 1 per 100 -
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
1 per dwelling unit 1 per dwelling unit 1 per
dwelling
unit
- 1 kitchen
sink per
dwelling
unitf
R-4 Residential care/unlicensed assisted living facilities 1 per 10 1 per 10 1 per 8 - -
8 Storage (see
Sections 403.2
and 403.4)
S-1
S-2
Structures for the
storage of goods,
warehouses,
storehouse and
freight depots, low
and moderate
hazardm,n
1 per 100 1 per 100 See
Section 411
- -
  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 the International 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 rooms shall be permitted where such room is provided with direct access from each patient room 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 number of fixtures provided shall be based on either the capacity of the church sanctuary or the church educational building, 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 403.9 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.

403.1.1 Fixture Calculations

Amendment
This section has been amended by the state, county, or city.
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.
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 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 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

Amendment
This section has been amended by the state, county, or city.
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 25 or less.
  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.
  5. Where the code requires only one toilet facility for each sex, two unisex facilities may be substituted for separate sex facilities.

403.3 Required Public Toilet Facilities

Amendment
This section has been amended by the state, county, or city.

403.3 Adjustments in Occupant Content

Amendment
This section has been amended by the state, county, or city.
If an owner or tenant requests, the plumbing official shall make adjustments in the occupant content established by Table 403.1 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 for in the above table. Approval of such data and accompanying claims shall not prevent the plumbing official from requiring additional facilities based on the above table, should changes be made affecting the floor plan upon 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 are not affected by this paragraph.

403.3.1 Access

Amendment
This section has been amended by the state, county, or city.

403.3.2 Location of Toilet Facilities in Occupancies Other Than Covered Malls

Amendment
This section has been amended by the state, county, or city.

403.3.3 Location of Toilet Facilities in Covered Malls

Amendment
This section has been amended by the state, county, or city.

403.3.4 Pay Facilities

Amendment
This section has been amended by the state, county, or city.

403.4 Signage

Amendment
This section has been amended by the state, county, or city.

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

Amendment
This section has been amended by the state, county, or city.
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.

403.4.1 Directional Signage

Amendment
This section has been amended by the state, county, or city.

403.4.1 Travel Distance

Amendment
This section has been amended by the state, county, or city.
The required toilet facilities in occupancies other than assembly or mercantile shall be located not more than one story above or below the employees' 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 403.4.1, provided that the location and maximum travel distance are approved by the code official.

403.5 Location of Employee Toilet Facilities in Mercantile and Assembly Occupancies

Amendment
This section has been amended by the state, county, or city.
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 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 (91 440 mm).

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 (91 440 mm) and such central toilet facilities are located not more than one story above or below the tenant space.

403.6 Public Facilities

Amendment
This section has been amended by the state, county, or city.
Customers, patrons and visitors shall be provided with public toilet facilities in structures and tenant spaces intended for public utilization. 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).

403.6.1 Covered Malls

Amendment
This section has been amended by the state, county, or city.
In covered mall buildings, the path of travel to required toilet facilities shall not exceed a distance of 300 feet (91 440 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.

403.6.2 Pay Facilities

Amendment
This section has been amended by the state, county, or city.
Where pay facilities are installed, such facilities shall be in excess of the required minimum facilities. Required facilities shall be free of charge.

403.6.3 Picnic Shelters

Amendment
This section has been amended by the state, county, or city.
Where picnic shelters that are less than 750-square feet (70-square meters) in aggregate area are installed in a community recreation area, and parking is neither provided nor required, public toilet facilities are not required. The travel distance to the dwellings served shall not be limited.

403.7 Signage

Amendment
This section has been amended by the state, county, or city.
Required public facilities shall be designated by a legible sign for each sex. Signs shall be visible and located near the entrance to each toilet facility.

403.8 Multiplex Theaters

Amendment
This section has been amended by the state, county, or city.
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.

403.9 Plumbing Fixtures for Public Schools

Amendment
This section has been amended by the state, county, or city.

403.9.1 Occupant Content

Amendment
This section has been amended by the state, county, or city.
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 through 12 (GS 115C-301). The occupant load for private schools shall be as listed in Table 1004.1.2 of the North Carolina Building Code.

403.9.2 Occupant Load and Distance

Amendment
This section has been amended by the state, county, or city.
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 mm) 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.

403.9.3 Occupant Load for Teachers and Staff

Amendment
This section has been amended by the state, county, or city.
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.

403.9.4 Gymnasiums, Cafeterias, Auditoriums and Stadiums for Schools

Amendment
This section has been amended by the state, county, or city.
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.

403.9.5 Miscellaneous Provisions

Amendment
This section has been amended by the state, county, or city.

403.9.5.1 Unisex Facilities

Amendment
This section has been amended by the state, county, or city.
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.

403.9.5.2 Student Group Facilities

Amendment
This section has been amended by the state, county, or city.
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.

403.9.5.3 Substitutions

Amendment
This section has been amended by the state, county, or city.
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.

403.9.5.4 Modular Classroom Buildings

Amendment
This section has been amended by the state, county, or city.
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.

403.9.5.5 Temporary Modular Classroom Buildings

Amendment
This section has been amended by the state, county, or city.
Toilet rooms may be omitted in modular classroom buildings housing 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 m) of horizontal travel distance from the modular classroom.
Accessible plumbing facilities and fixtures shall be provided in accordance with the International Building Code.
The supply lines and fittings for every plumbing fixture shall be installed so as to prevent backflow.
Plumbing fixtures shall be installed so as to afford easy access for cleaning both the fixture and the area around the fixture.
Fixtures shall be set level and in proper alignment with reference to adjacent walls.

405.3.1 Water Closets, Urinals, Lavatories and Bidets

Amendment
This section has been amended by the state, county, or city.
A water closet, urinal, lavatory or bidet shall not be set closer than 15 inches (381 mm) from its center to any side wall, partition, vanity or other obstruction, or closer than 30 inches (762 mm) center-to-center between adjacent fixtures. There shall be at least a 21-inch (533 mm) clearance in front of the water closet, urinal, lavatory or bidet to any wall, fixture or door. Water closet compartments shall not be less than 30 inches (762 mm) wide and 60 inches (1524 mm) deep (see Figure 405.3.1).
Exception: For one- and two-family dwellings and townhouses, see the North Carolina Residential Code, Figure R307.1 for minimum fixture clearances.


For SI: 1 inch = 25.4 mm.
FIGURE 405.3.1
FIXTURE CLEARANCE

405.3.2 Public Lavatories

Amendment
This section has been amended by the state, county, or city.
In employee and public toilet rooms, the required lavatory shall be located in the same room as the required water closet, except in Education K through 5, lavatories may be provided in a common toilet room vestibule, visible from the corridor.
Connections between the drain and floor outlet plumbing fixtures shall be made with a floor flange. The flange shall be attached to the drain and anchored to the structure. Connections between the drain and wall-hung water closets shall be made with an approved extension nipple or horn adaptor. The water closet shall be bolted to the hanger with corrosion-resistant bolts or screws. Joints shall be sealed with an approved elastomeric gasket, flange-to-fixture connection complying with ASME A112.4.3 or an approved setting compound.

405.4.1 Floor Flanges

Amendment
This section has been amended by the state, county, or city.
Floor flanges for water closets or similar fixtures shall not be less than 0.125 inch (3.2 mm) thick for brass, 0.25 inch (6.4 mm) thick for plastic, and 0.25 inch (6.4 mm) thick and not less than a 2-inch (51 mm) caulking depth for cast-iron or galvanized malleable iron.
Floor flanges of hard lead shall weigh not less than 1 pound, 9 ounces (0.7 kg) and shall be composed of lead alloy with not less than 7.75-percent antimony by weight. Flanges shall be secured to the building structure with corrosion-resistant screws or bolts.
Floor outlet fixtures shall be secured to the floor or floor flanges by screws or bolts of corrosion-resistant material.
Wall-hung water closet bowls shall be supported by a concealed metal carrier that is attached to the building structural members so that strain is not transmitted to the closet connector or any other part of the plumbing system. The carrier shall conform to ASME A112.6.1M or ASME A112.6.2.
Joints formed where fixtures come in contact with walls or floors shall be sealed.

405.6 Plumbing in Mental Health Centers

Amendment
This section has been amended by the state, county, or city.
Where any fixture is provided with an overflow, the waste shall be designed and installed so that standing water in the fixture will not rise in the overflow when the stopper is closed, and no water will remain in the overflow when the fixture is empty.
The overflow from any fixture shall discharge into the drainage system on the inlet or fixture side of the trap.
Exception: The overflow from a flush tank serving a water closet or urinal shall discharge into the fixture served.

405.8 Slip Joint Connections

Amendment
This section has been amended by the state, county, or city.
Slip joints shall be made with an approved elastomeric gasket and shall only be installed on the trap outlet, trap inlet and within the trap seal. Fixtures with concealed slip-joint connections shall be provided with an access panel or utility space at least 12 inches (305 mm) in its smallest dimension or other approved arrangement so as to provide access to the slip joint connections for inspection and repair. Where such access cannot be provided, access doors shall not be required, provided that all joints are soldered, solvent cemented or screwed to form a solid connection.
Integral fixture fitting mounting surfaces on manufactured plumbing fixtures or plumbing fixtures constructed on site, shall meet the design requirements of ASME A112.19.2M or ASME A112.19.3M.
Domestic automatic clothes washers shall conform to ASSE 1007.
The water supply to an automatic clothes washer shall be protected against backflow by an air gap installed integrally within the machine conforming to ASSE 1007 or with the installation of a backflow preventer in accordance with Section 608.

406.3 Waste Connection

Amendment
This section has been amended by the state, county, or city.
The waste from an automatic clothes washer shall connect to a vertical drain of not less than 2 inches (51 mm) in diameter, or a horizontal drain of not less than 3 inches (76 mm) in diameter. The 2-inch (51 mm) trap in the waste connection may be used as a cleanout for both the 2-inch (51 mm) and the 3-inch (76 mm). Automatic clothes washers that discharge by gravity shall be permitted to drain to a waste receptor or an approved trench drain.
Bathtubs shall conform to ANSI Z124.1, ASME A112.19.1M, ASME A112.19.4M, ASME A112.19.9M, CSA B45.2, CSA B45.3 or CSA B45.5.
Bathtubs shall have waste outlets a minimum of 11/2 inches (38 mm) in diameter. The waste outlet shall be equipped with an approved stopper.
Windows and doors within a bathtub enclosure shall conform to the safety glazing requirements of the International Building Code.
Doors within a bathtub enclosure shall conform to ASME A112.19.15.
Bidets shall conform to ASME A112.19.2M, ASME A112.19.9M or CSA B45.1.
The water supply to a bidet shall be protected against backflow by an air gap or backflow preventer in accordance with Section 608.13.1, 608.13.2, 608.13.3, 608.13.5, 608.13.6 or 608.13.8.

408.3 Bidet Water Temperature

Amendment
This section has been amended by the state, county, or city.
Domestic dishwashing machines shall conform to ASSE 1006. Commercial dishwashing machines shall conform to ASSE 1004 and NSF 3.
The water supply to a dishwashing machine shall be protected against backflow by an air gap or backflow preventer in accordance with Section 608.
The waste connection of a dishwashing machine shall comply with Section 802.1.6 or 802.1.7, as applicable.

410.1 Approval

Amendment
This section has been amended by the state, county, or city.
Drinking fountains shall conform to ASME A112.19.1M, ASME A112.19.2M or ASME A112.19.9M and water coolers shall conform to ARI 1010. Drinking fountains and water coolers shall conform to NSF 61, Section 9. Where water is served in restaurants, night clubs, taverns, or bars, drinking fountains shall not be required.
Drinking fountains, water coolers and bottled water dispensers shall not be installed in public restrooms.
Emergency showers and eyewash stations shall conform to ISEA Z358.1.
Waste connections shall not be required for emergency showers and eyewash stations.
Floor drains shall conform to ASME A112.3.1, ASME A112.6.3 or CSA B79. Trench drains shall comply with ASME A112.6.3.
Floor drains shall have removeable strainers. The floor drain shall be constructed so that the drain is capable of being cleaned. Access shall be provided to the drain inlet. Ready access shall be provided to floor drains.
Exception: Floor drains serving refrigerated display cases shall be provided with access.
Floor drains shall have a minimum 2-inch-diameter (51 mm) drain outlet.
In public coin-operated laundries and in the central washing facilities of multiple-family dwellings, the rooms containing automatic clothes washers shall be provided with floor drains located to readily drain the entire floor area. Such drains shall have a minimum outlet of not less than 3 inches (76 mm) in diameter.

412.5 Location

Amendment
This section has been amended by the state, county, or city.
Floor drains shall be located to drain the entire floor area.

412.6 Trap Primers

Amendment
This section has been amended by the state, county, or city.
The water seal of floor drain traps shall be maintained in conformance to Section 1002.4, Trap seals, or another method acceptable to the authority having jurisdiction.

Exception: Hose bibbs located in rooms with nonabsorbent floors may be used in lieu of an automatic trap primer.
Domestic food waste grinders shall conform to ASSE 1008. Commercial food waste grinders shall conform to ASSE 1009. Food waste grinders shall not increase the drainage fixture unit load on the sanitary drainage system.
Domestic food waste grinders shall be connected to a drain of not less than 11/2 inches (38 mm) in diameter.
Commercial food waste grinders shall be connected to a drain not less than 11/2 inches (38 mm) in diameter. Commercial food waste grinders shall be connected and trapped separately from any other fixtures or sink compartments.
All food waste grinders shall be provided with a supply of cold water. The water supply shall be protected against backflow by an air gap or backflow preventer in accordance with Section 608.
The water supply to a garbage can washer shall be protected against backflow by an air gap or a backflow preventer in accordance with Section 608.13.1, 608.13.2, 608.13.3, 608.13.5, 608.13.6 or 608.13.8.

414.2 Waste Connection

Amendment
This section has been amended by the state, county, or city.
Garbage can washers shall be trapped separately. The receptacle receiving the waste from the washer shall have a removable basket or strainer to prevent the discharge of of particles 1/2 inch (12.3 mm) or larger into the drainage system.
Laundry trays shall conform to ANSI Z124.6, ASME A112.19.1M, ASME A112.19.3M, ASME A112.19.9M, CSA B45.2 or CSA B45.4.
Each compartment of a laundry tray shall be provided with a waste outlet a minimum of 11/2 inches (38 mm) in diameter and a strainer or crossbar to restrict the clear opening of the waste outlet.
Lavatories shall conform to ANSI Z124.3, ASME A112.19.1M, ASME A112.19.2M, ASME A112.19.3M, ASME A112.19.4M, ASME A112.19.9M, CSA B45.1, CSA B45.2, CSA B45.3 or CSA B45.4. Group wash-up equipment shall conform to the requirements of Section 402. Every 20 inches (508 mm) of rim space shall be considered as one lavatory.
Cultured marble vanity tops with an integral lavatory shall conform to ANSI Z124.3 or CSA B45.5.
Lavatories shall have waste outlets not less than 11/4 inches (32 mm) in diameter. A strainer, pop-up stopper, crossbar or other device shall be provided to restrict the clear opening of the waste outlet.
Moveable lavatory systems shall comply with ASME A112.19.12.

416.5 Tempered Water for Public Hand-Washing Facilities

Amendment
This section has been amended by the state, county, or city.
When hot water is provided to a public hand-washing facility, such water shall be tempered water delivered through an approved water-temperature limiting device that conforms to ASSE 1070 or CSA B125.3.

417.1 Approval

Amendment
This section has been amended by the state, county, or city.
Prefabricated showers and shower compartments shall conform to ANSI Z124.1.2, ASME A112.19.9M or CSA B45.5. Shower valves for individual showers shall conform to the requirements of Section 424.3.
Water supply risers from the shower valve to the shower head outlet, whether exposed or concealed, shall be attached to the structure. The attachment to the structure shall be made by the use of support devices designed for use with the specific piping material or by fittings anchored with screws.

417.3 Shower Waste Outlet

Amendment
This section has been amended by the state, county, or city.
Waste outlets serving showers shall be at least 2 inches (51 mm) in diameter and, for other than waste outlets in bathtubs, shall have removable strainers not less than 3 inches (76 mm) in diameter with strainer openings not less than 1/4 inch (6.4 mm) in minimum dimension. Where each shower space is not provided with an individual waste outlet, the waste outlet shall be located and the floor pitched so that waste from one shower does not flow over the floor area serving another shower. Waste outlets shall be fastened to the waste pipe in an approved manner.


Exception: Retaining pre-existing 11/2 inch (12.3 mm) in diameter waste outlets shall be permitted when removing an existing bathtub and installing in its place a shower.

417.4 Shower Compartments

Amendment
This section has been amended by the state, county, or city.
Shower compartments shall conform to Table 417.4 and shall have approved shower pan material or the equivalent thereof as determined by the plumbing official. The pan shall turn up on three sides at least 2 inches (51 mm) above the finished curb level. The remaining side shall wrap over the curb. Shower drains shall be constructed with a clamping device so that the pan may be securely fastened to the shower drain thereby making a water-tight joint. Shower drains shall have an approved weephole device system to ensure constant drainage of water from the shower pan to the sanitary drainage system. There shall be a water-tight joint between the shower and drain and trap. Shower receptacle waste outlets shall be not less than 2 inches (51mm) and shall have a removable strainer.
Exceptions:
  1. Shower compartments with prefabricated receptors conforming to the standards listed in Table 417.4.
  2. Where load-bearing, bonded, waterproof membranes meeting ANSI A118.10 are used, integrated bonding flange drains shall be approved. Clamping devices and weepholes are not required where shower drains include an integrated bonding flange. Manufacturer's installation instructions shall be followed to achieve a watertight seal between the bonded waterproof membrane and the integrated bonding flange drain. Integrated bonding flange drains shall conform to ASME A112.6.3, ASME A112.18.2/CSA B125.2, or CSA B79.
TABLE 417.4
PREFABRICATED SHOWER
RECEPTOR STANDARDS MATERIALS STANDARDS
Plastic shower receptors and shower stalls ANSI Z124.1.2
Shower pans, nonmetallic ASTM D 4551.
See Section 303.8
The wall area above built-in tubs with installed shower heads and in shower compartments shall be constructed of smooth, noncorrosive and nonabsorbent waterproof materials to a height not less than 6 feet (1829 mm) above the room floor level, and not less than 70 inches (1778 mm) where measured from the compartment floor at the drain. Such walls shall form a water-tight joint with each other and with either the tub, receptor or shower floor.

417.4.2 Access

Amendment
This section has been amended by the state, county, or city.
Floor surfaces shall be constructed of impervious, noncorrosive, nonabsorbent and waterproof materials.
Floors or receptors under shower compartments shall be laid on, and supported by, a smooth and structurally sound base.

417.5.2 Shower Lining

Amendment
This section has been amended by the state, county, or city.
Floors under shower compartments, except where prefabricated receptors have been provided, shall be lined and made water tight utilizing material complying with Sections 417.5.2.1 through 417.5.2.5. Such liners shall turn up on all sides at least 2 inches (51 mm) above the finished threshold level. Liners shall be recessed and fastened to an approved backing so as not to occupy the space required for wall covering, and shall not be nailed or perforated at any point less than 1 inch (25 mm) above the finished threshold. Liners shall be securely fastened to the waste outlet at the seepage entrance, making a water-tight joint between the liner and the outlet. Liners shall be installed in accordance with manufacturer's instructions.
Exceptions:
  1. Floor surfaces under shower heads provided for rinsing laid directly on the ground are not required to comply with this section.
  2. Where a sheet-applied, load-bearing, bonded, waterproof membrane is installed as the shower lining, the membrane shall not be required to be recessed.
Plasticized polyvinyl chloride (PVC) sheets shall be a minimum of 0.040 inch (1.02 mm) thick, and shall meet the requirements of ASTM D 4551. Sheets shall be joined by solvent welding in accordance with the manufacturer's installation instructions.
Nonplasticized chlorinated polyethylene sheet shall be a minimum 0.040 inch (1.02 mm) thick, and shall meet the requirements of ASTM D 4068. The liner shall be joined in accordance with the manufacturer's installation instructions.
Sheet lead shall not weigh less than 4 pounds per square foot (19.5 kg/m2) coated with an asphalt paint or other approved coating. The lead sheet shall be insulated from conducting substances other than the connecting drain by 15-pound (6.80 kg) asphalt felt or its equivalent. Sheet lead shall be joined by burning.
Sheet copper shall conform to ASTM B 152 and shall not weigh less than 12 ounces per square foot (3.7 kg/m2). The copper sheet shall be insulated from conducting substances other than the connecting drain by 15-pound (6.80 kg) asphalt felt or its equivalent. Sheet copper shall be joined by brazing or soldering.
Sheet-applied, load-bearing, bonded, waterproof membranes shall meet requirements of ANSI A118.10 and shall be applied in accordance with the manufacturer's installation instructions.

417.5.2.6 Liquid-Type, Trowel-Applied, Load-Bearing, Bonded Waterproof Materials

Amendment
This section has been amended by the state, county, or city.
Liquid-type, trowel-applied, load-bearing, bonded waterproof materials shall meet the requirements of ANSI A118.10 and shall be applied in accordance with the manufacturer's instructions.
Windows and doors within a shower enclosure shall conform to the safety glazing requirements of the International Building Code.
Sinks shall conform to ANSI Z124.6, ASME A112.19.1M, ASME A112.19.2M, ASME A112.19.3M, ASME A112.19.4M, ASME A112.19.9M, CSA B45.1, CSA B45.2, CSA B45.3 or CSA B45.4.
Sinks shall be provided with waste outlets a minimum of 11/2 inches (38 mm) in diameter. A strainer or crossbar shall be provided to restrict the clear opening of the waste outlet.
Moveable sink systems shall comply with ASME A112.19.12.

419.1 Approval

Amendment
This section has been amended by the state, county, or city.
Urinals shall conform to ANSI Z124.9, ASME A112.19.2M, ASME A112.19.19, CSA B45.1 or CSA B45.5. Urinals shall conform to the water consumption requirements of Section 604.4. Water-supplied urinals shall conform to the hydraulic performance requirements of ASME A112.19.6, CSA B45.1 or CSA B45.5.
Urinals that do not use water shall be permitted, provided the urinals:
  1. Provide a barrier liquid sealant contained in a removable trap to maintain the trap seal;
  2. Permit the uninhibited flow of water through the trap to the sanitary drainage system;
  3. Comply with ANSI Z124.9 and ASME A112.19.2, as applicable.
  4. Shall be provided with water supply for future connection.
In each bathroom or toilet room, urinals shall not be substituted for more than 67 percent of the required water closets in assembly and educational occupancies. Urinals shall not be substituted for more than 50 percent of the required water closets in all other occupancies.

419.3 Surrounding Material

Amendment
This section has been amended by the state, county, or city.
Water closets shall conform to the water consumption requirements of Section 604.4 and shall conform to ANSI Z124.4, ASME A112.19.2M, CSA B45.1, CSA B45.4 or CSA B45.5. Water closets shall conform to the hydraulic performance requirements of ASME A112.19.6. Water closet tanks shall conform to ANSI Z124.4, ASME A112.19.2, ASME A112.19.9M, CSA B45.1, CSA B45.4 or CSA B45.5. Electro-hydraulic water closets shall comply with ASME A112.19.13.
Water closet bowls for public or employee toilet facilities shall be of the elongated type.
Water closets shall be equipped with seats of smooth, nonabsorbent material. All seats of water closets provided for public or employee toilet facilities shall be of the hinged open-front type. Integral water closet seats shall be of the same material as the fixture. Water closet seats shall be sized for the water closet bowl type.
A 4-inch by 3-inch (102 mm by 76 mm) closet bend shall be acceptable. Where a 3-inch (76 mm) bend is utilized on water closets, a 4-inch by 3-inch (102 mm by 76 mm) flange shall be installed to receive the fixture horn.
Whirlpool bathtubs shall comply with ASME A112.19.7M or with CSA B45.5 and CSA B45 (Supplement 1).
Whirlpool bathtubs shall be installed and tested in accordance with the manufacturer's installation instructions. The pump shall be located above the weir of the fixture trap.
The pump drain and circulation piping shall be sloped to drain the water in the volute and the circulation piping when the whirlpool bathtub is empty.
Suction fittings for whirlpool bathtubs shall comply with ASME A112.19.8M.

421.5 Access to Pump

Amendment
This section has been amended by the state, county, or city.
Access shall be provided to circulation pumps in accordance with the fixture or pump manufacturer's installation instructions. Where the manufacturer's instructions do not specify the location and minimum size of field-fabricated access openings, a 12-inch by 12-inch (305 mm by 305 mm) minimum sized opening shall be installed to provide access to the circulation pump. Where pumps are located more than 2 feet (609 mm) from the access opening, an 18-inch by 18-inch (457 mm by 457 mm) minimum sized opening shall be installed. A door or panel shall be permitted to close the opening. In all cases, the access opening shall be unobstructed and of the size necessary to permit the removal and replacement of the circulation pump. A minimum clearance of 21 inches (514.5 mm) is required in front of the access door.
Doors within a whirlpool enclosure shall conform to ASME A112.19.15.
This section shall govern those aspects of health care plumbing systems that differ from plumbing systems in other structures. Health care plumbing systems shall conform to the requirements of this section in addition to the other requirements of this code. The provisions of this section shall apply to the special devices and equipment installed and maintained in the following occupancies: nursing homes, homes for the aged, orphanages, infirmaries, first aid stations, psychiatric facilities, clinics, professional offices of dentists and doctors, mortuaries, educational facilities, surgery, dentistry, research and testing laboratories, establishments manufacturing pharmaceutical drugs and medicines, and other structures with similar apparatus and equipment classified as plumbing.
All special plumbing fixtures, equipment, devices and apparatus shall be of an approved type.
All devices, appurtenances, appliances and apparatus intended to serve some special function, such as sterilization, distillation, processing, cooling, or storage of ice or foods, and that connect to either the water supply or drainage system, shall be provided with protection against backflow, flooding, fouling, contamination of the water supply system and stoppage of the drain.
Fixtures designed for therapy, special cleansing or disposal of waste materials, combinations of such purposes, or any other special purpose, shall be of smooth, impervious, corrosion-resistant materials and, where subjected to temperatures in excess of 180°F (82°C), shall be capable of withstanding, without damage, higher temperatures.
Access shall be provided to concealed piping in connection with special fixtures where such piping contains steam traps, valves, relief valves, check valves, vacuum breakers or other similar items that require periodic inspection, servicing, maintenance or repair. Access shall be provided to concealed piping that requires periodic inspection, maintenance or repair.
A clinical sink shall have an integral trap in which the upper portion of a visible trap seal provides a water surface. The fixture shall be designed so as to permit complete removal of the contents by siphonic or blowout action and to reseal the trap. A flushing rim shall provide water to cleanse the interior surface. The fixture shall have the flushing and cleansing characteristics of a water closet.
A clinical sink serving a soiled utility room shall not be considered as a substitute for, or be utilized as, a service sink. A service sink shall not be utilized for the disposal of urine, fecal matter or other human waste.
Machines for manufacturing ice, or any device for the handling or storage of ice, shall not be located in a soiled utility room.
The approval and installation of all sterilizers shall conform to the requirements of the International Mechanical Code.
Access for the purposes of inspection and maintenance shall be provided to all sterilizer piping and devices necessary for the operation of sterilizers.
Steam supplies to sterilizers, including those connected by pipes from overhead mains or branches, shall be drained to prevent any moisture from reaching the sterilizer. The condensate drainage from the steam supply shall be discharged by gravity.
Steam condensate returns from sterilizers shall be a gravity return system.
Pressure sterilizers shall be equipped with a means of condensing and cooling the exhaust steam vapors. Nonpressure sterilizers shall be equipped with a device that will automatically control the vapor, confining the vapors within the vessel.
Control valves, vacuum outlets and devices protruding from a wall of an operating, emergency, recovery, examining or delivery room, or in a corridor or other location where patients are transported on a wheeled stretcher, shall be located at an elevation that prevents bumping the patient or stretcher against the device.
Baptisteries, ornamental and lily pools, aquariums, ornamental fountain basins, swimming pools, and similar constructions, where provided with water supplies, shall be protected against backflow in accordance with Section 608.
Specialties requiring water and waste connections shall be submitted for approval.
Faucets and fixture fittings shall conform to ASME A112.18.1/CSA B125.1. Faucets and fixture fittings that supply drinking water for human ingestion shall conform to the requirements of NSF 61, Section 9. Flexible water connectors exposed to continuous pressure shall conform to the requirements of Section 605.6.
Faucets and supply fittings shall conform to the water consumption requirements of Section 604.4.
Waste fittings shall conform to ASME A112.18.2/CSA B125.2, ASTM F 409 or to one of the standards listed in Tables 702.1 and 702.4 for above-ground drainage and vent pipe and fittings.
Hand-held showers shall conform to ASME A112.18.1 or CSA B125.1. Hand-held showers shall provide backflow protection in accordance with ASME A112.18.1 or CSA B125.1 or shall be protected against backflow by a device complying with ASME A112.18.3.

424.3 Individual Shower Valves

Amendment
This section has been amended by the state, county, or city.
Individual shower and tub-shower combination valves shall be balanced-pressure, thermostatic or combination balanced-pressure/thermostatic valves that conform to the requirements of ASSE 1016 or ASME A112.18.1/CSA B125.1 and shall be installed at the point of use. Shower and tub-shower combination valves required by this section shall be equipped with a means to limit the maximum setting of the valve to 120°F (49°C), which shall be field adjusted in accordance with the manufacturer's instructions. In-line thermostatic valves shall not be utilized for compliance with this section. Scald preventative valves are not required in dwelling units with individual water heaters set at 120°F (49°C).
Multiple (gang) showers supplied with a single-tempered water supply pipe shall have the water supply for such showers controlled by an approved automatic temperature control mixing valve that conforms to ASSE 1069 or CSA B125, or each shower head shall be individually controlled by a balanced-pressure, thermostatic or combination balanced-pressure/thermostatic valve that conforms to ASSE 1016 or CSA B125 and is installed at the point of use. Such valves shall be equipped with a means to limit the maximum setting of the valve to 120°F (49°C), which shall be field adjusted in accordance with the manufacturer's instructions.

424.5 Bathtub and Whirlpool Bathtub Valves

Amendment
This section has been amended by the state, county, or city.
The hot water supplied to bathtubs and whirlpool bathtubs shall be limited to a maximum temperature of 120°F (49°C) by a water-temperature limiting device that conforms to ASSE 1070 or CSA B125.3, except where such protection is otherwise provided by a combination tub/shower valve in accordance with Section 424.3. Scald preventative valves are not required in dwelling units with individual water heaters set at 120°F (49°C).
Faucets and fixture fittings with hose-connected outlets shall conform to ASME A112.18.3M or CSA B125.
Temperature-actuated, flow reduction devices, where installed for individual fixture fittings, shall conform to ASSE 1062. Such valves shall not be used alone as a substitute for the balanced pressure, thermostatic or combination shower valves required in Section 424.3.
Deck-mounted bath/shower transfer valves containing an integral atmospheric vacuum breaker shall conform to the requirements of ASME A112.18.7.

425.1 Flushing Devices Required

Amendment
This section has been amended by the state, county, or city.
Each water closet, urinal, clinical sink and any plumbing fixture that depends on trap siphonage to discharge the fixture contents to the drainage system shall be provided with a flushometer valve, flushometer tank or a flush tank designed and installed to supply water in quantity and rate of flow to flush the contents of the fixture, cleanse the fixture and refill the fixture trap.
A flushometer valve, flush tank or similar device shall not be required for urinal fixtures that comply with the waterless test requirements of ANSI Z124.9 and that:
  1. Provide a barrier liquid sealant contained in a removable trap to maintain the trap seal;
  2. Permit the uninhibited flow of water through the trap to the sanitary drainage system;
  3. Comply with ANSI Z124.9 and ASME 112.19.2, as applicable.
A flushing device shall not serve more than one fixture.
Flushometer valves and tanks shall comply with ASSE 1037. Vacuum breakers on flushometer valves shall conform to the performance requirements of ASSE 1001 or CAN/CSA B64.1.1. Access shall be provided to vacuum breakers. Flushometer valves shall be of the water-conservation type and shall not be utilized where the water pressure is lower than the minimum required for normal operation. When operated, the valve shall automatically complete the cycle of operation, opening fully and closing positively under the water supply pressure. Each flushometer valve shall be provided with a means for regulating the flow through the valve. The trap seal to the fixture shall be automatically refilled after each valve flushing cycle.
Flush tanks equipped for manual flushing shall be controlled by a device designed to refill the tank after each discharge and to shut off completely the water flow to the tank when the tank is filled to operational capacity. The trap seal to the fixture shall be automatically refilled after each flushing. The water supply to flush tanks equipped for automatic flushing shall be controlled with a timing device or sensor control devices.
All flush tanks shall be equipped with an antisiphon fill valve conforming to ASSE 1002 or CSA B125.3. The fill valve backflow preventer shall be located at least 1 inch (25 mm) above the full opening of the overflow pipe.
Flush tanks shall be provided with overflows discharging to the water closet or urinal connected thereto and shall be sized to prevent flooding the tank at the maximum rate at which the tanks are supplied with water according to the manufacturer's design conditions. The opening of the overflow pipe shall be located above the flood level rim of the water closet or urinal or above a secondary overflow in the flush tank.
Sheet copper utilized for flush tank linings shall conform to ASTM B 152 and shall not weigh less than 10 ounces per square foot (0.03 kg/m2).
All parts in a flush tank shall be accessible for repair and replacement.
Flush pipes and fittings shall be of nonferrous material and shall conform to ASME A112.19.5 or CSA B125.
Manual food and beverage dispensing equipment shall conform to the requirements of NSF 18.
Sanitary floor sinks shall conform to the requirements of ASME A112.6.7.
Linked Resources
P
P Premium Feature

This feature is included in the premium subscription. Visit the feature page to learn more.

Learn More
Code Compare
P
P Premium Feature

This feature is included in the premium subscription. Visit the feature page to learn more.

Learn More
Bookmarks
P
P Premium Feature

This feature is included in the premium subscription. Visit the feature page to learn more.

Learn More
Amendment Styling
P
P Premium Feature

This feature is included in the premium subscription. Visit the feature page to learn more.

Learn More