PROPOSED RULES
Original Notice.
Preproposal statement of inquiry was filed as WSR 03-08-027.
Title of Rule: Adoption of chapter 51-50 WAC (adoption and amendment of the 2003 Edition of the International Building Code); and repeal of chapter 51-40 WAC (adoption and amendment of the 1997 Edition of the Uniform Building Code).
Purpose: To consider whether to adopt, or adopt and amend, the 2003 Edition of the International Building Code.
Statutory Authority for Adoption: RCW 19.27.031 and 19.27.074.
Statute Being Implemented: Chapters 19.27 and 34.05 RCW.
Summary: The proposed rule adopts the 2003 Edition of the International Building Code (IBC), published by the International Codes Council (ICC), and repeals the 1997 Edition of the Uniform Building Code (UBC), published by the International Council of Building Officials (ICBO). Existing state amendments are being carried forward into the new code to assure continued provision of safety and flexibility greater than the published version.
Reasons Supporting Proposal: RCW 19.27.031 and 19.27.074.
Name of Agency Personnel Responsible for Drafting and Implementation: Al Rhoades, Olympia, Washington 98504-8350, (360) 725-2970; and Enforcement: Local jurisdictions.
Name of Proponent: Washington State Building Code Council, governmental.
Agency Comments or Recommendations, if any, as to Statutory Language, Implementation, Enforcement, and Fiscal Matters: The council is seeking comments on the issues proposed in the rules shown below.
Rule is not necessitated by federal law, federal or state court decision.
Explanation of Rule, its Purpose, and Anticipated Effects: The proposed rule will adopt by reference the 2003 Edition of the IBC and repeal the 1997 Edition of the UBC, which is no longer being updated. The rule also carries forward existing state amendments into the IBC to assure continued provision of safety and flexibility greater than the published version.
Accessibility regulations have been a state written chapter based on national standards and amended into the UBC to replace the UBC accessibility chapter. In the IBC, accessibility requirements are more completely integrated into the published code with reference to technical specifications in the national accessibility standard ICC/ANSI A117.1-1998, titled Accessible and Usable Buildings and Facilities. The proposed rule includes adoption of the IBC accessibility chapter with limited state amendments to include existing unique requirements found in the current state code.
The proposed rule will keep the Washington State Building Code current with industry and national standards. Existing state amendments are carried over into the IBC to provide for specific application of the new code in Washington state.
Proposal Changes the Following Existing Rules: The 1997 Edition of the UBC is being updated by adopting the 2003 Edition of the IBC. With the repeal of chapter 51-40 WAC (adopting the UBC), a new WAC number has been designated for the replacement code, chapter 51-50 WAC (adopting the IBC).
No small business economic impact statement has been prepared under chapter 19.85 RCW. This rule will update the adoption of model codes to stay current with national standards for the benefit of industry and Washington state interests. No economic impact on small business was identified.
RCW 34.05.328 does not apply to this rule adoption. The State Building Code Council is not listed in this section as one of the agencies required to comply with this regulation.
Hearing Location: Spokane City Council Chambers, West 808 Spokane Falls Boulevard, Spokane, WA, on October 10, 2003, at 10:00 a.m.; and at the Holiday Inn Select/Renton, One Grady Way South, Renton, WA, on October 17, 2003, at 10:00 a.m.
Assistance for Persons with Disabilities: Contact
Sue Mathers by September 26, 2003, TDD (360) 753-7427 or (360) 725-2967.
Submit Written Comments to: Stan Price, Chairman, State Building Code Council, P.O. Box 48350, Olympia, WA 98504-8350, fax (360) 586-9383, e-mail sbcc@cted.wa.gov, by October 17, 2003.
Date of Intended Adoption: November 21, 2003.
August 7, 2003
Tim Nogler
for Stan Price
Chairman
OTS-6588.2
STATE BUILDING CODE ADOPTION AND AMENDMENT OF THE 2003 EDITION OF THE INTERNATIONAL BUILDING CODE
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Pursuant to RCW 19.27.040, Chapter 11 and requirements affecting barrier-free access shall not be amended by local governments.
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The provisions of this code do not apply to temporary growing structures used solely for the commercial production of horticultural plants including ornamental plants, flowers, vegetables, and fruits. "Temporary growing structure" means a structure that has the sides and roof covered with polyethylene, polyvinyl, or similar flexible synthetic material and is used to provide plants with either frost protection or increased heat retention. A temporary growing structure is not considered a building for purposes of this code.
The provisions of this code do not apply to the construction, alteration, or repair of temporary worker housing except as provided by rule adopted under chapter 70.114A RCW or chapter 37, Laws of 1998 (SB 6168). "Temporary worker housing" means a place, area, or piece of land where sleeping places or housing sites are provided by an employer for his or her employees or by another person, including a temporary worker housing operator, who is providing such accommodations for employees, for temporary, seasonal occupancy, and includes "labor camps" under RCW 70.54.110.
The following referenced codes published by the International Code Council are not adopted as part of the State Building Code: ICC Electrical Code, International Plumbing Code, International Energy Conservation Code, International Private Sewage Disposal Code, International Property Maintenance Code, International Existing Building Code, and International Urban-Wildland Interface Code. When referenced, as appropriate, these references shall mean the National Electric Code (as adopted and amended by the state of Washington), the Uniform Plumbing Code (as adopted and amended by the state of Washington), the Washington State Energy Code, or other locally adopted code if applicable.
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RECYCLED MATERIALS means those solid wastes that are separated for recycling or reuse, such as papers, metals and glass.
All local jurisdictions shall require that space be
provide for the storage of recycled materials and solid waste
for all new buildings.
| EXCEPTION: | Group R-3 and Group U Occupancies. |
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SECTION 202 -- DEFINITIONS.
PORTABLE SCHOOL CLASSROOM. See Section 902.1.
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302.3 Mixed occupancies. Where a building is occupied by two
or more uses not included in the same occupancy
classification, the building or portion thereof shall comply
with Section 302.3.1 or 302.3.2 or a combination of these
sections.
| EXCEPTIONS: | 1. Occupancies separated in accordance with Section 508. |
| 2. Areas of Group H-2, H-3, H-4 or H-5 Occupancies shall be separated from any other occupancy in accordance with Section 302.3.2. | |
| 3. Where required by Table 415.3.2, areas of Group H-1, H-2 or H-3 Occupancies shall be located in a separate and detached building or structure. | |
| 4. Accessory use areas in accordance with Section 302.2. | |
| 5. Incidental use areas in accordance with Section 302.1.1. | |
| 6. Offices, mercantile, food preparation establishments for off-site consumption, personal care salons or similar uses in Group R dwelling units, which are conducted primarily by the occupants of a dwelling unit and are secondary to the use of the unit for dwelling purposes, and which do not exceed 500 square feet (46.4 m2). |
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305.2 Day Care. The use of a building or structure, or
portion thereof, for educational, supervision or personal care
services for more than five children older than 2 1/2 years of
age, shall be classified as a Group E Occupancy.
| EXCEPTION: | Family child day care homes licensed by the Washington state department of social and health services for the care of twelve or fewer children shall be classified as Group R-3. |
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308.2 Group I-1. This occupancy shall include buildings,
structures or parts thereof housing more than 16 persons, on a
24-hour basis, who because of age, mental disability or other
reasons, live in a supervised residential environment that
provides personal care services. The occupants are capable of
responding to an emergency situation without physical
assistance from staff. This group shall include, but not be
limited to, the following:
Residential board and care facilities
Assisted living facilities
Halfway houses
Group homes
Congregate care facilities
Social rehabilitation facilities
Alcohol and drug centers
Convalescent facilities
A facility such as the above with five or fewer persons and adult family homes licensed by the Washington state department of social and health services shall be classified as a Group R-3 or shall comply with the International Residential Code in accordance with Section 101.2. A facility such as above, housing at least six and not more than 16 persons, shall be classified as Group R-4.
A facility such as the above providing licensed care to clients in one of the categories listed in Section 313.1 regulated by either the Washington department of health or the department of social and health services shall be classified as Licensed Care Group LC.
308.3 Group I-2. This occupancy shall include buildings and
structures used for medical, surgical, psychiatric, nursing or
custodial care on a 24-hour basis of more than five persons
who are not capable of self-preservation. This group shall
include, but not be limited to, the following:
Hospitals
Nursing homes (both intermediate-care facilities and skilled nursing facilities)
Mental hospitals
Detoxification facilities
A facility such as the above with five or fewer persons shall be classified as Group R-3 or shall comply with the International Residential Code in accordance with Section 101.2.
A facility such as the above providing licensed care to clients in one of the categories listed in Section 313.1 regulated by either the Washington department of health or the department of social and health services shall be classified as Licensed Care Group LC.
308.5.2 Child care facility. A facility that provides
supervision and personal care on a less than 24-hour basis for
more than five children 2 1/2 years of age or less shall be
classified as Group I-4.
| EXCEPTIONS: | 1. A child day care facility that provides care for more than five but no more than 100 children 2 1/2 years or less of age, when the rooms where such children are cared for are located on the level of exit discharge and each of these child care rooms has an exit door directly to the exterior, shall be classified as Group E. |
| 2. Family child day care homes licensed by the Washington state department of social and health services for the care of twelve or fewer children shall be classified as Group R-3. |
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310.1 Residential Group R. Residential Group R includes,
among others, the use of a building or structure, or a portion
thereof, for sleeping purposes when not classified as an
Institutional Group I or Licensed Care Group LC. Residential
occupancies shall include the following:
R-1 Residential occupancies where the occupants are primarily
transient in nature, including:
Boarding houses (transient)
Hotels (transient)
Motels (transient)
R-2 Residential occupancies containing sleeping units or more
than two dwelling units where the occupants are primarily
permanent in nature, including:
Apartment houses
Boarding houses (not transient)
Convents
Dormitories
Fraternities and sororities
Monasteries
Vacation timeshare properties
Hotels (nontransient)
Motels (nontransient)
R-3 Residential occupancies where the occupants are primarily
permanent in nature and not classified as R-1, R-2, R-4 or I
and where buildings do not contain more than two dwelling
units as applicable in Section 101.2, including adult family
homes and family child day care homes for the care of twelve
or fewer children, licensed by the Washington state department
of social and health services, or adult and child care
facilities that provide accommodations for five or fewer
persons of any age for less than 24 hours. Adult family homes
and family child day care homes, or adult and child care
facilities that are within a single-family home are permitted
to comply with the International Residential Code in
accordance with Section 101.2.
Foster family care homes licensed by the Washington state
department of social and health services shall be permitted,
as an accessory use to a dwelling, for six or fewer children
including those of the resident family.
R-4 Residential occupancies shall include buildings arranged
for occupancy as residential care/assisted living facilities
including more than five but not more than 16 occupants,
excluding staff.
| EXCEPTIONS: | 1. A facility such as the above providing licensed care to clients in one of the categories listed in Section 313.1 regulated by either the Washington department of health or the department of social and health services shall be classified as Licensed Care Group LC. |
| 2. Adult family homes, family child day care homes and foster family care homes shall be classified as Group R-3. |
310.2 Definitions.
ADULT FAMILY HOME means a dwelling in which a person or persons
provide personal care, special care, room and board to more
than one but not more than six adults who are not related by
blood or marriage to the person or persons providing the
services.
CHILD DAY CARE, shall, for the purposes of these regulations,
mean the care of children during any period of a 24-hour day.
CHILD DAY CARE HOME, FAMILY is a child day care facility, licensed
by the state, located in the dwelling of the person or persons
under whose direct care and supervision the child is placed,
for the care of twelve or fewer children, including children
who reside at the home.
RESIDENTIAL CARE/ASSISTED LIVING FACILITIES. A building or part
thereof housing persons, on a 24-hour basis, who because of
age, mental disability or other reasons, live in a supervised
residential environment which provides personal care services
that is not classified as Licensed Care Group LC. The
occupants are capable of responding to an emergency situation
without physical assistance from staff. This classification
shall include, but not be limited to, the following:
Residential board and care facilities, assisted living
facilities, halfway houses, group homes, congregate care
facilities, social rehabilitation facilities, alcohol and drug
abuse centers and convalescent facilities.
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SECTION 313 -- LICENSED CARE GROUP LC.
313.1 General. Licensed Care Group LC includes the use of a
building, structure, or portion thereof, for the business of
providing licensed care to clients in one of the following
categories regulated by either the Washington department of
health or the department of social and health services:
1. Adult residential rehabilitation facility.
2. Alcoholism intensive inpatient treatment service.
3. Alcoholism detoxification service.
4. Alcoholism long-term treatment service.
5. Alcoholism recovery house service.
6. Boarding home.
7. Group care facility.
8. Group care facility for severely and multiple handicapped children.
9. Residential treatment facility for psychiatrically impaired children and youth.
| EXCEPTION: | Where the care provided at an alcoholism detoxification service is acute care similar to that provided in a hospital, the facility shall be classified as a Group I-2 Occupancy. |
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SECTION 419 -- GROUP LC.
419.1 General. Occupancies in Group LC shall comply with the
provisions of this section and other applicable provisions of
this code.
419.2 Area and height. Buildings classified as Group LC shall
not exceed, in area or height, the limitations set forth in
Table 503 for Group R-2 Occupancies.
| EXCEPTION: | Occupancies in Group LC licensed for six or fewer clients may be of unlimited area provided they are limited to 3 stories or less. |
419.4 Mixed occupancies. Where the provisions of Section
302.3.2 are applied, occupancies in Group LC shall be
separated from Group H Occupancies by a four-hour
fire-resistive occupancy separation and shall be separated
from all other occupancies by a one-hour fire-resistive
assembly.
| EXCEPTIONS: | 1. An occupancy separation need not be provided between a Group LC Occupancy licensed for 16 or fewer clients and a carport having no enclosed use above, provided the carport is entirely open on two or more sides. |
| 2. Private garages shall be separated from Group LC Occupancies and their attic areas by means of a minimum 1/2-inch (12.7 mm) gypsum board applied to the garage side. Garages beneath habitable rooms shall be separated from all habitable rooms above by not less than 5/8-inch Type-X gypsum board or equivalent. Door openings between private garages and Group LC Occupancies shall be equipped with either solid wood doors, or solid or honeycomb core steel doors not less than 1 3/8 inches (34.9 mm) thick, or doors in compliance with Section 715.3.3. Openings from a private garage directly into a room used for sleeping purposes shall not be permitted. | |
| 3. An occupancy separation need not be provided between a Group LC, Boarding Home Occupancy and a Group R-2 Occupancy. |
I - Persons physically and mentally capable of walking or traversing a normal path to safety, including the ascent and descent of stairs, and capable of self-preservation, without the physical assistance of another person.
II - Persons physically and mentally capable of
traversing a normal path to safety with the use of mobility
aids, but unable to ascend or descend stairs without the
physical assistance of another person.
III - Persons physically or mentally unable to walk or
traverse a normal path to safety without the physical
assistance of another person.
419.6 Location of sleeping rooms. In every Group LC facility,
all sleeping rooms occupied by clients with an evacuation
capability of II or III shall be located on a grade level
floor which provides not less than two means of egress which
do not require clients to use stairs, elevator, or platform
lift to exit the facility.
| EXCEPTIONS: | 1. In a Group LC Occupancy licensed to provide care to two or fewer clients with an evacuation capability of II or III and six or fewer total clients, only one means of egress which does not require clients to use stairs, elevator or platform lift to exit the facility need be provided. |
| 2. Sleeping rooms for clients with an evacuation capability of II or III may be located on floors other than at grade level, provided the facility is divided into at least two compartments by smoke barriers. |
| EXCEPTIONS: | 1. Means of egress illumination required by Section 1006 need not be provided in any Group LC Occupancy licensed for six or fewer clients. |
| 2. In LC Occupancies with an approved automatic fire sprinkler system and approved automatic fire alarm system, waiting and resting areas may be open to the corridor provided: | |
| 2.1 Each rest area does not exceed 150 square feet, excluding the corridor width; and | |
| 2.2 Walls defining the space shall continue the construction of the corridor's wall; and | |
| 2.3 The floor on which the rest area or areas are located is divided into at least two compartments by smoke barriers; and | |
| 2.4 Combustible furnishings located within the rest area are flame resistant as defined by International Building Code Section 802; and | |
| 2.5 Emergency means of egress lighting is provided as required by Section 1006 to illuminate the area. |
Where an occupancy in Group LC is being established by change of occupancy in an existing building, the building shall be altered to comply with apartment building or dormitory provisions of Chapter 11 if any client is a person with disability. The alterations shall provide the minimum necessary access appropriate for the disabilities of clients. Any alteration, whether to accommodate a client with disability or for another purpose, shall comply with Part III of Chapter 11.
419.9 Lighting. Occupancies in Group LC shall be provided
with light as required by Section 1205 for dwelling units and
exterior stairways serving dwelling units.
419.10 Ventilation. Occupancies in Group LC shall comply with
provisions for Group R Occupancies as provided in the
Washington State Ventilation and Indoor Air Quality Code.
419.11 Ceiling heights. Habitable rooms, hallways, corridors,
bathrooms, toilet rooms, laundry rooms and basements shall
have a ceiling height of not less than 7 feet (2134 mm). The
required height shall be measured from the finished floor to
the lowest projection from the ceiling.
| EXCEPTIONS: | 1. Beams and girders spaced not less than 4 feet (1219 mm) on center may project not more than 6 inches (153 mm) below the required ceiling height. |
| 2. Ceilings in basements without habitable spaces may project to within 6 feet 8 inches (2032 mm) of the finished floor, and beams, girders, ducts or other obstructions may project to within 6 feet 4 inches (1931 mm) of the finished floor. | |
| 3. Not more than 50 percent of the required floor area of a room or space is permitted to have a sloped ceiling less than 7 feet (2134 mm) in height, with no portion of the required floor area less than 5 feet (1524 mm) in height. |
| EXCEPTION: | An automatic sprinkler system need not be installed if the licensed care facility is licensed for six or fewer clients. |
419.14 Single- and multiple-station smoke alarms. Listed
single- and multiple-station smoke alarms shall be installed
in accordance with the provisions of this code and the
household fire-warning equipment provisions of NFPA 72.
419.14.1 Where required. Single- or multiple-station smoke
alarms shall be installed and maintained in Group LC,
regardless of occupant load at all of the following locations:
1. On the ceiling or wall outside of each separate
sleeping area in the immediate vicinity of bedrooms.
2. In each room used for sleeping purposes.
3. In each story, including basements but not including crawl spaces and uninhabitable attics. In buildings with split levels and without an intervening door between the adjacent levels, a smoke alarm installed on the upper level shall suffice for the adjacent lower level provided that the lower level is less than one full story below the upper level.
419.14.2 Power source. In new construction, required smoke
alarms shall receive their primary power from the building
wiring where such wiring is served from a commercial source
and shall be equipped with a battery backup. Smoke alarms
shall emit a signal when the batteries are low. Wiring shall
be permanent and without a disconnecting switch other than as
required for overcurrent protection.
419.14.3 Interconnection. Where more than one smoke alarm is
required to be installed within an individual Group LC
Occupancy, the smoke alarms shall be interconnected in such a
manner that the activation of one alarm will activate all of
the alarms in the Group LC Occupancy. The alarm shall be
clearly audible in all bedrooms over background noise levels
with all intervening doors closed.
419.14.4 Additions, alterations or repairs. When the
valuation of an addition, alteration or repair to a Group LC
Occupancy exceeds $1,000 and a permit is required, or when one
or more sleeping rooms is added or created in an existing
Group LC Occupancy, smoke detectors shall be installed in
accordance with Sections 419.14.1 and 419.14.2.
| EXCEPTION: | Repairs to the exterior surfaces are exempt from the requirements of this section. |
419.15.1 General. Sanitation facilities shall comply with
Chapter 29 and the provisions of this section. Any room in
which a water closet is located shall be separated from food
preparation or storage rooms by a self-closing tight-fitting
door.
419.15.2 Group LC Occupancies with six or fewer clients.
Group LC Occupancies licensed for six or fewer clients shall
be provided with not less than one water closet, one lavatory
and one bathtub or shower.
419.15.3 Group LC Occupancies with more than six clients.
Group LC Occupancies licensed for more than six clients shall
provide not less than one water closet for each 10 male
clients, or fractional part thereof, and not less than one
water closet for each 8 female clients, or fractional part
thereof.
In addition, not less than one lavatory shall be provided for each 12 male clients, or fractional part thereof, and not less than one lavatory for each 12 female clients, or fractional part thereof. Where the number of clients of either sex exceeds 12, one lavatory shall be added for each additional 20 males, or fractional part thereof, and one lavatory shall be added for each additional 15 females, or fractional part thereof.
In addition, not less than one bathtub or shower shall be provided for every eight clients, or fractional part thereof. Where there are female clients, one additional bathtub or shower shall be provided for each 30 female clients, or fractional part thereof. Where the number of total clients exceeds 150, one bathtub or shower shall be provided for each 20 clients, or fractional part thereof, over 150 clients.
419.16 Concealed spaces. Fireblocking and draftstopping shall
be installed in occupancies in Group LC in accordance with the
provisions of Section 717 applicable to Group R-2.
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707.14.1 Elevator lobby. Elevators opening into a
fire-resistance-rated corridor as required by Section 1016.1
shall be provided with an elevator lobby at each floor
containing such a corridor. The lobby shall separate the
elevators from the corridor by fire partitions and the
required opening protection. Elevator lobbies shall have at
least one means of egress complying with Chapter 10 and other
provisions within this code.
| EXCEPTIONS: | 1. In office buildings, separations are not required from a street-floor elevator lobby provided the entire street floor is equipped with an automatic sprinkler system in accordance with Section 903.3.1.1. |
| 2. Elevators not required to be located in a shaft in accordance with Section 707.2. | |
| 3. Where additional doors are provided in accordance with Section 3002.6. Such doors shall be tested in accordance with UL 1784 without an artificial bottom seal. | |
| 4. In other than Group I-3, and buildings more than four stories above the lowest level of fire department vehicle access, lobby separation is not required where the building, including the lobby and corridors leading to the lobby, is protected by an automatic sprinkler system installed throughout in accordance with Section 903.3.1.1 or 903.3.1.2. | |
| 5. In fully sprinklered buildings where elevator and stair shafts are pressurized in accordance with Section 909, elevator lobbies need not be provided. |
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902.1 Definitions.
PORTABLE SCHOOL CLASSROOM. A structure, transportable in one or
more sections, which requires a chassis to be transported, and
is designed to be used as an educational space with or without
a permanent foundation. The structure shall be trailerable
and capable of being demounted and relocated to other
locations as needs arise.
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903.2.2 Group E. An automatic sprinkler system shall be
provided for Group E Occupancies as follows:
1. Throughout all Group E fire areas greater than 20,000 square feet (1858 m2) in area.
2. Throughout every portion of educational buildings below the level of exit discharge.
| EXCEPTION: | An automatic sprinkler system is not required in any fire area or area below the level of exit discharge where every classroom throughout the building has at least one exterior exit door at ground level. |
For the purpose of this section, additions exceeding 60 percent of the value of such building or structure, or alterations and repairs to any portion of a building or structure within a twelve-month period that exceeds 100 percent of the value of such building or structure shall be considered new construction. In the case of additions, fire walls shall define separate buildings.
| EXCEPTIONS: | 1. Portable school classrooms, provided aggregate area of clusters of portable school classrooms does not exceed 5,000 square feet (1465 m2); and clusters of portable school classrooms shall be separated as required in Chapter 5 of the building code. |
| 2. Group E day care. |
903.2.10.3 Buildings over 75 feet in height. An automatic
sprinkler system shall be installed throughout buildings with
a floor level having an occupant load of 30 or more that is
located 75 feet (22 860 mm) or more above the lowest level of
fire department vehicle access.
| EXCEPTIONS: | 1. Airport control towers. |
| 2. Open parking structures. | |
| 3. Occupancies in Group F-2. |
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909.6.3 Elevator shaft pressurization. Where elevator shaft
pressurization is required to comply with Exception 5 of
Section 707.14.1, the pressurization system shall comply with
the following.
909.6.3.1 Elevator shafts shall be pressurized to not less
than 0.10 inch water column relative to atmospheric pressure.
Elevator pressurization shall be measured with the elevator
cars at the designated primary recall level with the doors in
the open position. The test shall be conducted at the
location of the calculated maximum positive stack effect in
the elevator shaft. The measured pressure shall be sufficient
to provide 0.10 inch of water column as well as accounting for
the stack and wind effect expected on the mean low temperature
January day.
909.6.3.2 The elevator shaft pressurization system shall be
activated by a fire alarm system which shall include smoke
detectors or other approved detectors located near the
elevator shaft on each floor as approved by the building
official and fire chief. If the building has a fire alarm
panel, detectors shall be connected to, with power supplied
by, the fire alarm panel.
909.6.3.3 Elevator shaft pressurization equipment and its
ductwork located within the building shall be separated from
other portions of the building by construction equal to that
required for the elevator shaft.
909.6.3.4 Elevator shaft pressurization air intakes shall be
located in accordance with Section 909.10.3. Such intakes
shall be provided with smoke detectors which upon detection of
smoke, shall deactivate the pressurization fan supplied by
that air intake.
909.6.3.5 The power source for the fire alarm system and the
elevator shaft pressurization system shall be in accordance
with Section 909.11.
909.6.3.6 Hoistway venting required by Section 3004 need not
be provided for pressurized elevator shafts.
909.6.3.7 Elevator machine rooms required to be pressurized by
Section 3006.3 need not be pressurized where separated from
the hoistway shaft by construction in accordance with Section
707.
909.6.3.8 Special inspection shall be required in accordance
with Section 909.18.8.3 and Section 1704.
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1008.1.2 Door swing. Egress doors shall be side-hinged
swinging.
| EXCEPTIONS: | 1. Private garages, office areas, factory and storage areas with an occupant load of 10 or less. |
| 2. Group I-3 Occupancies used as a place of detention. | |
| 3. Doors within or serving a single dwelling unit in Groups R-2 and R-3 as applicable in Section 101.2. | |
| 4. In other than Group H Occupancies, revolving doors complying with Section 1008.1.3.1. | |
| 5. In other than Group H Occupancies, horizontal sliding doors complying with Section 1008.1.3.3 are permitted as a means of egress. | |
| 6. Power-operated doors in accordance with Section 1008.1.3.1. |
The opening force for interior side-swinging doors without closers shall not exceed a 5-pound force. For other side-swinging, sliding, and folding doors, the door latch shall release when subjected to a 15-pound force. The door shall be set in motion when subjected to a 30-pound force. The door shall swing to a full-open position when subjected to a 15-pound force. Forces shall be applied to the latch side. Within an accessible route, at exterior doors where environmental conditions require a closing pressure greater than 8.5 pounds, power operated doors shall be used within the accessible route of travel.
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1009.3 Stair treads and risers. Stair riser heights shall be
7 1/2 inches (190 mm) maximum and 4 inches (102 mm) minimum.
Stair tread depths shall be 10 inches (254 mm) minimum. The
riser height shall be measured vertically between the leading
edges of adjacent treads. The greatest riser height within
any flight of stairs shall not exceed the smallest by more
than 0.375 inch (9.5 mm). Winder treads shall have a minimum
tread depth of 11 inches (279 mm) measured at a right angle to
the tread's leading edge at a point 12 inches (305 mm) from
the side where the treads are narrower and a minimum tread
depth of 10 inches (254 mm). The greatest winder tread depth
at the 12-inch (305 mm) walk line within any flight of stairs
shall not exceed the smallest by more than 0.375 inch (9.5
mm).
| EXCEPTIONS: | 1. Circular stairways in accordance with Section 1009.7. |
| 2. Winders in accordance with Section 1009.8. | |
| 3. Spiral stairways in accordance with Section 1009.9. | |
| 4. Aisle stairs in assembly seating areas where the stair pitch or slope is set, for sightline reasons, by the slope of the adjacent seating area in accordance with Section 1024.11.2. | |
| 5. In occupancies in Group R-3, as applicable in Section 101.2, within dwelling units in occupancies in Group R-2, as applicable in Section 101.2, and in occupancies in Group U, which are accessory to an occupancy in Group R-3 as applicable in Section 101.2, the maximum riser height shall be 7.75 inches (197 mm) and the minimum tread depth shall be 10 inches (254 mm), the minimum winder tread depth at the walk line shall be 10 inches (254 mm), and the minimum winder tread depth shall be 6 inches (152 mm). A nosing not less than 0.75 inch (19.1 mm) but not more than 1.25 inches (32 mm) shall be provided on stairways with solid risers where the tread depth is less than 11 inches (279 mm). | |
| 6. See the International Existing Building Code for the replacement of existing stairways. |
[]
1010.8 Handrails. Ramps with a rise greater than 6 inches
(152 mm) shall have handrails on both sides complying with
Section 1009.11. At least one handrail shall extend in the
direction of ramp run not less than 12 inches (305 mm)
horizontally beyond the top and bottom of the ramp runs.
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1024.11 Assembly aisle walking surfaces. Aisles with a slope
not exceeding one unit vertical in eight units horizontal
(12.5-percent slope) shall consist of a ramp having a
slip-resistant walking surface. Aisles with a slope exceeding
one unit vertical in eight units horizontal (12.5-percent
slope) shall consist of a series of risers and treads that
extends across the full width of aisles and complies with
Sections 1024.11.1 through 1024.11.3.
| EXCEPTION: | When provided with fixed seating, aisles in Group A-1 Occupancies shall be permitted to have a slope not steeper than one unit vertical in five units horizontal (20-percent slope). |
| EXCEPTIONS: | 1. Handrails are not required for ramped aisles having a gradient no greater than one unit vertical in five units horizontal (20-percent slope) and seating on both sides. |
| 2. Handrails are not required if, at the side of the aisle, there is a guard that complies with the graspability requirements of handrails. |
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1101.2 Design. Buildings and facilities shall be designed and
constructed to be accessible in accordance with this code and
ICC A117.1, except those portions of ICC A117.1 amended by
this section.
1101.2.1 Landings. The maximum rise for any run is 30 inches
(762 mm). Landings shall be provided at the top and bottom of
any run. Landings shall be level and have a minimum dimension
measured in the direction of travel of not less than 60 inches
(1525 mm). Amends ICC A117.1 403.
1101.2.2 Clear width. Clear width of an accessible route
shall comply with Table 403.5. For exterior routes of travel,
the minimum clear width shall be 44 inches (1118 mm). Amends
ICC A117.1 403.5.
1101.2.3 Door-opening force. Fire doors shall have the
minimum opening force allowable by the appropriate
administrative authority. The maximum force for pushing open
or pulling open doors other than fire doors shall be as
follows:
1. Interior hinged door: 5.0 pounds
2. Sliding or folding doors: 5.0 pounds
At exterior doors where environmental conditions require a closing pressure greater than 8.5 pounds, power operated doors shall be used within the accessible route of travel.
These forces do not apply to the force required to retract latch bolts or disengage other devices that hold the door in a closed position. Amends ICC A117.1 404.2.9.
1101.2.4 Identification. Where accessible parking spaces are
required to be identified by signs, the signs shall include
the International Symbol of Access complying with Section
703.7. Such signs shall be 60 inches (1525 mm) minimum above
the floor or ground surface of the parking space, measured to
the bottom of the sign. Van accessible parking spaces shall
have an additional sign mounted below the International Symbol
of Access identifying the spaces as "Van Accessible." Amends
ICC A117.1 502.6.
1101.2.5 Coat hooks, shelves, dispensers, and other fixtures.
Coat hooks provided within toilet rooms shall accommodate a
forward reach or side reach complying with Section 308. Where
provided, shelves shall be installed so that the top of the
shelf is within 40 inches (1015 mm) of the floor. Drying
equipment, towel or other dispensers, and disposal fixtures
shall be mounted so as to not exceed 40 inches above the
finish floor to any rack, operating controls, receptacle or
dispenser. Amends ICC A117.1 603.4.
1101.2.6 Flush controls. Flush controls shall be hand
operated or automatic. Hand operated flush controls for water
closets shall be mounted for use from the wide side of the
water closet area and not more than 44 inches (1118 mm) above
the floor. Amends ICC A117.1 604.6.
1101.2.7 Dispensers. Toilet paper dispensers shall comply
with Section 309.4 and shall be 7 inches (180 mm) minimum and
9 inches (230 mm) maximum in front of the water closet. The
outlet of the dispenser shall be 15 inches (380 mm) minimum
and 48 inches (1015 mm) maximum above the floor or ground.
There shall be a clearance of 1 1/2 inches (38 mm) minimum
below and 12 inches (305 mm) minimum above the grab bar.
Dispensers shall not be of a type that control delivery, or
that do not allow continuous paper flow. Other dispensers,
and disposal fixtures shall be mounted so as to not exceed 40
inches above the finish floor to any rack, operating controls,
receptacle or dispenser. Amends ICC A117 604.7.
1101.2.8 Grab bars. Grab bars shall have an outside diameter
of not less than 1 1/4 inch (32 mm) nor more than 1 1/2 inches
(38 mm) and shall provide a clearance of 1 1/2 inches (38 mm)
between the grab bar and the wall. Amends ICC A117.1 609.2.
1101.2.9 International Symbol of Accessibility. Where the
International Symbol of Accessibility is required, it shall be
proportioned complying with Figure 703.2.1. All interior and
exterior signs depicting the International Symbol of Access
shall be white on a blue background. Amends ICC A117.1
703.7.2.1.
1101.2.10 Lines of sight. Wheelchair spaces shall be located
in places with unobstructed sight lines. Amends ICC A117.1
802.8.
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1103.2.15 Modifications. Where full compliance with this
chapter is impractical due to unique characteristics of the
terrain, the building official may grant modifications in
accordance with Section 104.10, provided that any portion of
the building or structure that can be made accessible shall be
made accessible to the greatest extent practical.
[]
1104.4 Multilevel buildings and facilities. At least one
accessible route shall connect each accessible level,
including mezzanines, in multilevel buildings and facilities.
| EXCEPTIONS: | 1. An accessible route is not required to stories and mezzanines above and below accessible levels that have an aggregate area of not more than 3,000 square feet. This exception shall not apply to: |
| 1.1 Multiple tenant facilities of Group M Occupancies containing five or more tenant spaces; | |
| 1.2 Levels containing offices of health care providers (Group B or I); or | |
| 1.3 Passenger transportation facilities and airports (Group A-3 or B); or | |
| 1.4 Buildings owned or leased by government agencies. | |
| 2. In Group A, I, R and S Occupancies, levels that do not contain accessible elements or other spaces required by Section 1107 or 1108 are not required to be served by an accessible route from an accessible level. | |
| 3. In air traffic control towers, an accessible route is not required to serve the cab and floor immediately below the cab. | |
| 4. Where a two-story building or facility has one story with an occupant load of five or fewer persons that does not contain public use space, that story shall not be required to be connected by an accessible route to the story above or below. |
[]
1105.1 Public entrances. In addition to accessible entrances
required by Sections 1105.1.1 through 1105.1.6, at least 50
percent of all public entrances shall be accessible. All
exterior exits which are located adjacent to accessible areas
and within 6 inches (152 mm) of grade shall be accessible.
| EXCEPTIONS: | 1. An accessible entrance is not required in areas not required to be accessible. |
| 2. Loading and service entrances that are not the only entrance to a tenant space. |
[]
1106.3 Outpatient medical care facilities. For Group I-1 and
I-2 Occupancies providing outpatient medical care facilities,
10 percent of the parking spaces provided accessory to such
occupancies shall be accessible.
1106.4 Inpatient and outpatient medical care facilities. For
Group I-1 and I-2 units and facilities specializing in the
treatment of persons with mobility impairments on either an
inpatient or outpatient basis, 20 percent of the parking
spaces provided accessory to such units and facilities shall
be accessible.
1106.6 Location. Accessible parking spaces shall be located
on the shortest route of travel from adjacent parking to an
accessible building entrance. Accessible parking spaces shall
be dispersed among the various types of parking facilities
provided. In parking facilities that do not serve a
particular building, accessible parking spaces shall be
located on the shortest route to an accessible pedestrian
entrance to the parking facility. Where buildings have
multiple accessible entrances with adjacent parking,
accessible parking spaces shall be dispersed and located near
the accessible entrances. Wherever practical, the accessible
route of travel shall not cross lanes of vehicular traffic.
Where crossing traffic lanes is necessary, the route of travel
shall be designated and marked as a crosswalk.
| EXCEPTION: | In multilevel parking structures, van accessible parking spaces are permitted on one level. |
[]
1107.6 Group R. Occupancies in Group R shall be provided with
accessible features in accordance with Sections 1107.6.1
through 1107.6.4. Accessible and Type A units shall be
apportioned among efficiency dwelling units, single bedroom
units and multiple bedroom units, in proportion to the numbers
of such units in the building. Accessible hotel guest rooms
shall be apportioned among the various classes of sleeping
accommodations.
1107.6.2.1.1 Type A units. In occupancies in Group R-2
containing more than 20 dwelling units or sleeping units, at
least 5 percent, but not less than one, of the units shall be
a Type A unit. All units on a site shall be considered to
determine the total number of units and the required number of
Type A units. Type A units shall be dispersed among the
various classes of units.
| EXCEPTIONS: | 1. The number of Type A units is permitted to be reduced in accordance with Section 1107.7. |
| 2. Existing structures on a site shall not contribute to the total number of units on a site. |
[]
1109.2 Toilet and bathing facilities. Toilet rooms and
bathing facilities shall be accessible. Where a floor level
is not required to be connected by an accessible route, the
only toilet rooms or bathing facilities provided within the
facility shall not be located on the inaccessible floor. At
least one of each type of fixture, element, control or
dispenser in each accessible toilet room and bathing facility
shall be accessible.
| EXCEPTIONS: | 1. In toilet rooms or bathing facilities accessed only through a private office, not for common or public use, and intended for use by a single occupant, any of the following alternatives are allowed: |
| 1.1 Doors are permitted to swing into the clear floor space provided the door swing can be reversed to meet the requirements in ICC A117.1; | |
| 1.2 The height requirements for the water closet in ICC A117.1 are not applicable; | |
| 1.3 Grab bars are not required to be installed in a toilet room, provided that reinforcement has been installed in the walls and located so as to permit the installation of such grab bars; and | |
| 1.4 The requirement for height, knee and toe clearance shall not apply to a lavatory. | |
| 2. This section is not applicable to toilet and bathing facilities that serve dwelling units or sleeping units that are not required to be accessible by Section 1107. | |
| 3. Where multiple single-user toilet rooms or bathing facilities are clustered at a single location and contain fixtures in excess of the minimum required number of plumbing fixtures, at least 5 percent, but not less than one room for each use at each cluster, shall be accessible. | |
| 4. Toilet room fixtures that are in excess of those required by the State Building Code and that are designed for use by children in day care and primary school occupancies. | |
| 5. Where no more than one urinal is provided in a toilet room or bathing facility, the urinal is not required to be accessible. | |
| 6. Toilet rooms that are part of critical care or intensive care patient sleeping rooms are not required to be accessible. | |
| 7. In dwelling units where a separate bathtub and shower are provided in the same room, at least one shall be accessible. |
1109.6 Elevators. Passenger elevators on an accessible route
shall be accessible and comply with ICC A117.1. Elevators
required to be accessible shall be designed and constructed to
comply with Chapter 296-96 of the Washington Administrative
Code.
1109.9 Detectable warnings. Passenger transit platform edges
bordering a drop-off and not protected by platform screens or
guards shall have a detectable warning. Curb ramps shall have
detectable warnings. Detectable warnings shall extend the
full width and depth of the curb ramp.
| EXCEPTION: | Detectable warnings are not required at bus stops. |
| EXCEPTION: | Where the area of the selling space is less than 5,000 square feet (465 m2), only one check-out aisle is required to be accessible. |
[]
1203.1 General. Buildings shall be provided with natural
ventilation in accordance with Section 1203.4, or mechanical
ventilation in accordance with the International Mechanical
Code and the Washington State Ventilation and Indoor Air
Quality Code.
1203.4 Natural ventilation. For other than Group R
Occupancies in buildings four stories and less, natural
ventilation of an occupied space shall be through windows,
doors, louvers or other openings to the outdoors. The
operating mechanism for such openings shall be provided with
ready access so that the openings are readily controllable by
the building occupants. Group R Occupancies in buildings four
stories and less shall comply with the Washington State
Ventilation and Indoor Air Quality Code.
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1204.2.1 Definitions. For the purposes of this section only,
the following definitions apply.
DESIGNATED AREAS are those areas designated by a county to be an
urban growth area in chapter 36.70A RCW and those areas
designated by the U.S. Environmental Protection Agency as
being in nonattainment for particulate matter.
SUBSTANTIALLY REMODELED means any alteration or restoration of a
building exceeding 60 percent of the appraised value of such
building within a 12-month period. For the purpose of this
section, the appraised value is the estimated cost to replace
the building and structure in-kind, based on current
replacement costs.
1204.2.2 Primary heating source. Primary heating sources in
all new and substantially remodeled buildings in designated
areas shall not be dependent upon wood stoves.
1204.2.3 Solid fuel burning devices. No used solid fuel
burning device shall be installed in new or existing buildings
unless such device is United States Environmental Protection
Agency certified or a pellet stove either certified or exempt
from certification by the United States Environmental
Protection Agency.
| EXCEPTION: | Antique wood cook stoves and heaters manufactured prior to 1940. |
[]
Option 1:
1208.2 Minimum ceiling heights. Occupiable spaces, habitable
spaces, corridors, bathrooms, toilet rooms, kitchen, storage
rooms and laundry rooms shall have a ceiling height of not
less than 7 feet (2134 mm).
| EXCEPTIONS: | 1. In one- and two-family dwellings, beams or girders spaced not less than 4 feet (1219 mm) on center and projecting not more than 6 inches (152 mm) below the required ceiling height. |
| 2. If any room in a building has a sloped ceiling, the prescribed ceiling height for the room is required in one-half the area thereof. Any portion of the room measuring less than 5 feet (1524 mm) from the finished floor to the ceiling shall not be included in any computation of the minimum area thereof. | |
| 3. Mezzanines constructed in accordance with Section 505.1. |
1208.2 Minimum ceiling heights. Occupiable spaces, habitable
spaces and corridors shall have a ceiling height of not less
than 7 feet 6 inches (2286 mm). Bathrooms, toilet rooms,
kitchen, storage rooms and laundry rooms shall be permitted to
have a ceiling height of not less than 7 feet (2134 mm).
| EXCEPTIONS: | 1. In one- and two-family dwellings, beams or girders spaced not less than 4 feet (1219 mm) on center and projecting not more than 6 inches (152 mm) below the required ceiling height. |
| 2. If any room in a building has a sloped ceiling, the prescribed ceiling height for the room is required in one-half the area thereof. Any portion of the room measuring less than 5 feet (1524 mm) from the finished floor to the ceiling shall not be included in any computation of the minimum area thereof. | |
| 3. Mezzanines constructed in accordance with Section 505.1. | |
| 4. Residential Group R Occupancies shall be permitted to have a ceiling height of not less than 7 feet (2134 mm). |
| EXCEPTION: | Every kitchen in a one- and two-family dwelling shall have not less than 50 square feet (4.64 m2) of gross floor area. |
[]
1702.1 General.
STRUCTURAL OBSERVATION. The visual observation of the structural
system by a registered design professional for general
conformance to the approved construction documents.
Structural observation does not include or waive the
responsibility for the inspection required by Section 109,
1704, or other sections of this code.
[]
1709.1 Structural observations. Structural observations shall
be provided for those structures included in Seismic Design
Category D, E or F, as determined in Section 1616, where one
or more of the following conditions exist:
1. The structure is included in Seismic Use Group II or III.
2. The height of the structure is greater than 75 feet (22 860 mm) above the base.
3. The structure is in Seismic Design Category E and Seismic Use Group I and greater than two stories in height.
4. When so designated by the registered design professional in responsible charge of the design.
5. When such observation is specifically required by the building official for unusual lateral force-resisting structures or irregular structures as defined in Section 1616.
Structural observations shall also be provided for those structures sited where the basic wind speed exceeds 110 mph (49 m/sec) determined from Figure 1609, where one or more of the following conditions exist:
1. The structure is included in Category III or IV according to Table 1604.5.
2. The height of the structure is greater than 75 feet (22 860 mm).
3. When so designated by the registered design professional in responsible charge of the design.
4. When such observation is specifically required by the building official for unusual main windforce-resisting structures.
The owner shall employ a registered design professional to perform structural observations as defined in Section 1702.
Deficiencies shall be reported in writing to the owner and the building official. At the conclusion of the work included in the permit, the structural observer shall submit to the building official a written statement that the site visits have been made and identify any reported deficiencies which, to the best of the structural observer's knowledge, have not been resolved.
[]
2114.1 Emission Standards for Factory-built Fireplaces. After
January 1, 1997, no new or used factory-built fireplace shall
be installed in Washington state unless it is certified and
labeled in accordance with procedures and criteria specified
in the Washington State Building Code Standard 31-2.
To certify an entire fireplace model line, the internal assembly shall be tested to determine its particulate matter emission performance. Retesting and recertifying is required if the design and construction specifications of the fireplace model line internal assembly change. Testing for certification shall be performed by a Washington state department of ecology (DOE) approved and U.S. Environmental Protection Agency (EPA) accredited laboratory.
2114.2 Emission Standards for Certified Masonry and Concrete
Fireplaces. After January 1, 1997, new certified masonry or
concrete fireplaces installed in Washington state shall be
tested and labeled in accordance with procedures and criteria
specified in the Washington State Building Code Standard 31-2.
To certify an entire fireplace model line, the internal assembly shall be tested to determine its particulate matter emission performance. Retesting and recertifying is required if the design and construction specifications of the fireplace model line internal assembly change. Testing for certification shall be performed by a Washington state department of ecology (DOE) approved and U.S. Environmental Protection Agency (EPA) accredited laboratory.
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SECTION 2901 -- PLUMBING CODE.
Plumbing systems shall comply with the Plumbing Code.
SECTION 2902 -- GENERAL.
2902.1 Number of fixtures.
2902.1.1 Requirements. Plumbing fixtures shall be provided in
the minimum number shown in Table 2902.1 and in this chapter.
Where the proposed occupancy is not listed in Table 2902.1,
the building official shall determine fixture requirements
based on the occupancy which most nearly resembles the
intended occupancy.
Plumbing fixtures need not be provided for unoccupied buildings or facilities.
2902.1.2 Private offices. Fixtures only accessible to private
offices shall not be counted to determine compliance with this
section.
2902.1.3 Occupancy load distribution. The occupant load shall
be divided equally between the sexes, unless data approved by
the building official indicates a different distribution of
the sexes.
2902.1.4 Food preparation areas. In food preparation, serving
and related storage areas, additional fixture requirements may
be dictated by health codes.
2902.1.5 Other requirements. For other requirements for
plumbing facilities, see Sections 419.15 and 1210 and Chapter
11.
2902.2 Access to fixtures.
2902.2.1 Location. Plumbing fixtures shall be located in each
building or conveniently in a building adjacent thereto on the
same property.
2902.2.2 Multiple tenants. Access to toilets serving multiple
tenants shall be through a common use area and not through an
area controlled by a tenant.
2902.2.3 Multistory buildings. Required fixtures shall not be
located more than one vertical story above or below the area
served.
2902.3 Separate facilities.
2902.3.1 Requirements. Separate toilet facilities shall be
provided for each sex.
| EXCEPTIONS: | 1. In occupancies serving 10 or fewer persons, one toilet facility designed for use by no more than one person at a time shall be permitted for use by both sexes. |
| 2. In Group B and M Occupancies with a total floor area of 1500 square feet (139.5 m2) or less, one toilet facility designed for use by no more than one person at a time shall be permitted for use by both sexes. |
2902.4 Pay facilities. Required facilities shall be free of
charge. Where pay facilities are installed, they shall be in
addition to the minimum required facilities.
2902.5 is not adopted.
2902.6 is not adopted.
SECTION 2903 -- SPECIAL PROVISIONS.
2903.1 Dwelling units. Dwelling units shall be provided with
a kitchen sink.
2903.2 Water closet space requirements. The water closet
stool in all occupancies shall be located in a clear space not
less than 30 inches (762 mm) in width, with a clear space in
front of the stool of not less than 24 inches (610 mm).
2903.3 Water. Each required sink, lavatory, bathtub and
shower stall shall be equipped with hot and cold running water
necessary for its normal operation.
2903.4 Drinking fountains.
2903.4.1 Number. Occupant loads over 30 shall have one
drinking fountain for the first 150 occupants, then one per
each additional 500 occupants.
| EXCEPTIONS: | 1. Sporting facilities with concessions serving drinks shall have one drinking fountain for each 1000 occupants. |
| 2. A drinking fountain need not be provided in a drinking or dining establishment. |
2903.4.3 Penal institutions. Penal institutions shall have
one drinking fountain on each cell block floor and one on each
exercise floor.
2903.4.4 Location. Drinking fountains shall not be located in
toilet rooms.
| TYPE OF BUILDING OR OCCUPANCY | WATER CLOSETS (fixtures per person) |
LAVATORIES5 (fixtures per person) |
BATHTUB OR SHOWER (fixtures per person) |
||
| MALE3 | FEMALE | MALE | FEMALE | ||
| For the occupancies listed below, use 30 square feet (2.79 m˛) per occupant for the minimum number of plumbing fixtures. | |||||
| Group A | |||||
| Conference rooms, dining rooms, drinking establishments, exhibit rooms, gymnasiums, lounges, stages and similar uses including restaurants classified as Group B Occupancies | 1:1-25 | 1:1-25 | One per 2 water closets | ||
| 2:26-75 | 2:26-75 | ||||
| 3:76-125 | 3:76-125 | ||||
| 4:126-200 | 4:126-200 | ||||
| 5:201-300 | 5:201-300 | ||||
| 6:301-400 | 6:301-400 | ||||
| Over 400, add one fixture for each additional 200 males or 150 females | |||||
| For the assembly occupancies listed below, use the number of fixed seating or, where no fixed seating is provided, use 15 square feet (1.39 m2) per occupant for the minimum number of plumbing fixtures. | |||||
| Assembly places -- Theaters, auditoriums, convention halls, dance floors, lodge rooms, casinos, and such places which have limited time for fixture use (intermissions) |
1:1-100 | One per 25 | 1:1-200 | 1:1-200 | |
| 2:101-200 | Up to 400 | 2:201-400 | 2:201-400 | ||
| 3:201-400 | 3:401-750 | 3:401-750 | |||
| Over 400, add one fixture for each additional 250 males or 50 females | Over 750, add one fixture for each additional 500 persons | ||||
| Assembly places -- Stadiums, arena and other sporting facilities where fixture use is not limited to intermissions |
1:1-100 | One per 50 | 1:1-200 | 1:1-200 | |
| 2:101-200 | Up to 400 | 2:201-400 | 2:201-400 | ||
| 3:201-400 | 3:401-750 | 3:401-750 | |||
| Over 400, add one fixture for each additional 300 males or 100 females | Over 750, add one fixture for each additional 500 persons | ||||
| For the assembly occupancies listed below, use the number of fixed seating or, where no fixed seating is provided, use 30 square feet (2.79 m2) per occupant for the minimum number of plumbing fixtures. | |||||
| Worship places | |||||
| Principal assembly area | One per 150 | One per 75 | One per 2 water closets | ||
| Educational & activity unit | One per 125 | One per 75 | One per 2 water closets | ||
| For the occupancies listed below, use 200 square feet (18.58 m˛) per occupant for the minimum number of plumbing fixtures. | |||||
| Group B and other clerical or administrative employee accessory use |
1:1-15 | 1:1-15 | One per 2 water closets | ||
| 2:16-35 | 2:16-35 | ||||
| 3:36-55 | 3:36-55 | ||||
| Over 55, add one for each additional 50 persons | |||||
| For the occupancies listed below, use 100 square feet ( 9.3 m2) per student for the minimum number of plumbing fixtures. | |||||
| Group E | 1:1-15 | 1:1-15 | One per 2 water closets | ||
| Schools - for staff use | 2:16-35 | 2:16-35 | |||
| All schools | 3:36-55 | 3:36-55 | |||
| (One staff per 20 students) | Over 55, add one fixture for each additional 40 persons | ||||
| Schools - for student use | 1:1-20 | 1:1-20 | 1:1-20 | 1:1-20 | |
| Day care | 2:21-50 | 2:21-50 | 2:21-50 | 2:21-50 | |
| Over 50, add one fixture for each additional 50 persons | Over 50, add one fixture for each additional 50 persons | ||||
| Elementary | One per 30 | One per 25 | One per 2 water closets | ||
| Secondary | One per 40 | One per 30 | One per 2 water closets | ||
| For the occupancies listed below, use 50 square feet (4.65 m2) per occupant for the minimum number of plumbing fixtures. | |||||
| Education facilities other than Group E | |||||
| Others (colleges, universities, adult centers, etc.) | One per 40 | One per 25 | One per 2 water closets | ||
| For the occupancies listed below, use 2,000 square feet (185.8 m˛) per occupant for the minimum number of plumbing fixtures. | |||||
| Group F and Group H | 1:1-10 | 1:1-10 | One per 2 water closets | ||
| Workshop, foundries and similar establishments, and hazardous occupancies | 2:11-25 | 2:11-25 | One shower for each 15 persons exposed to excessive heat or to skin contamination with irritating materials | ||
| 3:26-50 | 3:26-50 | ||||
| 4:51-75 | 4:51-75 | ||||
| 5:76-100 | 5:76-100 | ||||
| Over 100, add one fixture for each additional 30 persons | |||||
| For the occupancies listed below, use the designated application and 200 square feet (18.58 m˛) per occupant of the general use area for the minimum number of plumbing fixtures. | |||||
| Group I7 | |||||
| Hospital waiting rooms | One per room (usable by either sex) | One per room | |||
| Hospital general use areas | 1:1-15 | 1:1-15 | One per 2 water closets | ||
| 2:16-35 | 3:16-35 | ||||
| 3:36-55 | 3:36-55 | ||||
| Over 55, add one fixture for each additional 40 persons | |||||
| Hospital patient rooms: | |||||
| Single Bed | One adjacent to and directly accessible from | One per toilet room | One per toilet room | ||
| Isolation | One adjacent to and directly accessible from | One per toilet room | One per toilet room | ||
| Multibed | One per 4 patients | One per 4 patients | One per 8 patients | ||
| Long-term | One per 4 patients | One per 4 patients | One per 15 patients | ||
| Jails and reformatories | |||||
| Cell | One per cell | One per cell | |||
| Exercise room | One per exercise room | One per exercise room | |||
| Other institutions (on each occupied floor) | One per 25 | One per 25 | One per 2 water closets | One per 8 | |
| Group LC | For Group LC Occupancies, the minimum number of plumbing fixtures is specified in Section 419.15. | ||||
| For the occupancies listed below, use 200 square feet (18.58 m2) per occupant for the minimum number of plumbing fixtures. | |||||
| Group M | |||||
| Retail or wholesale stores | 1:1-50 | 1:1-50 | |||