CODES

ADOPTS WITH AMENDMENTS:

International Existing Building Code 2012 (IEBC 2012)

Chapter 1 Scope and Administration

Chapter 2 Definitions

Chapter 3 Compliance Methods

Chapter 4 Prescriptive Compliance Method

Chapter 5 Classification of Work

Chapter 6 Repairs

Chapter 7 Alterations—Level 1

Chapter 8 Alterations—Level 2

Chapter 9 Alterations—Level 3

Chapter 10 Change of Occupancy

Chapter 11 Additions

Chapter 12 Historic Buildings

Chapter 13 Relocated or Moved Buildings

Chapter 14 Performance Compliance Methods

Chapter 15 Construction Safeguards

Chapter 16 Referenced Standards

Appendix A Guidelines for the Seismic Retrofit of Existing Buildings

Appendix B Supplementary Accessibility Requirements for Existing Buildings and Facilities

Appendix C Guidelines for the Wind Retrofit of Existing Buildings

Resource A RECOMMENDED GUIDELINES ON FIRE RATINGS OF ARCHAIC MATERIALS AND ASSEMBLIES

Appendix

(Former Rehab Code designation - Alteration)

801.1 Scope

STATE AMENDMENT
Level 2 alterations as described in Section 504 shall comply with the requirements of this chapter.
Exception: Buildings in which the reconfiguration is exclusively the result of compliance with the accessibility requirements of Section 705.2 shall be permitted to comply with Chapter 7.
In addition to the requirements of this chapter, all work shall comply with the requirements of Chapter 7.
All new construction elements, components, systems, and spaces shall comply with the requirements of the International Building Code.
Exceptions:
1. Windows may be added without requiring compliance with the light and ventilation requirements of the International Building Code.
2. Newly installed electrical equipment shall comply with the requirements of Section 808.
3. The length of dead-end corridors in newly constructed spaces shall only be required to comply with the provisions of Section 805.6.
4. The minimum ceiling height of the newly created habitable and occupiable spaces and corridors shall be 7 feet (2134 mm).

802.1 General

STATE AMENDMENT
Alteration of buildings classified as special use and occupancy as described in the International Building Code shall comply with the requirements of Section 801.1 and the scoping provisions of Chapter 1 where applicable.

802.2 Paint shops

STATE AMENDMENT
Paint shops, not classified as Group H, located in occupancies other than Group F shall be 1-hour separated from the remainder of the building with fire barriers or provided with an automatic fire-extinguishing system.
Waste and soiled linen collection rooms over 100 square feet (9.29 m2) shall be 1-hour separated from the remainder of the building with fire barriers or provided with an automatic fire-extinguishing system.
Chute termination rooms shall be 1-hour separated from the remainder of the building with fire barriers or provided with an automatic fire-extinguishing system.

802.5 Incinerator rooms

STATE AMENDMENT
Incinerator rooms shall be 2-hour separated from the remainder of the building with fire barriers and provided with an automatic sprinkler system.

802.6 Group I-2 and I-3

STATE AMENDMENT
In Group I-2 and I-3, physical plant maintenance shops, laundries over 100 square feet (9.29 m2), and padded cells shall be 1-hour separated from the remainder of the building with fire barriers or provided with an automatic sprinkler system.
The requirements of this section are limited to work areas in which Level 2 alterations are being performed, and shall apply beyond the work area where specified.
Existing vertical openings shall comply with the provisions of Sections 803.2.1, 803.2.2 and 803.2.3.
All existing interior vertical openings connecting two or more floors shall be enclosed with approved assemblies having a fire-resistance rating of not less than 1 hour with approved opening protectives.

Exceptions:

1. Where vertical opening enclosure is not required by the International Building Code or the International Fire Code.
2. Interior vertical openings other than stairways may be blocked at the floor and ceiling of the work area by installation of not less than 2 inches (51 mm) of solid wood or equivalent construction.
3. The enclosure shall not be required where:
3.1. Connecting the main floor and mezzanines; or
3.2. All of the following conditions are met:
3.2.1. The communicating area has a low hazard occupancy or has a moderate hazard occupancy that is protected throughout by an automatic sprinkler system.
3.2.2. The lowest or next to the lowest level is a street floor.
3.2.3. The entire area is open and unobstructed in a manner such that it may be assumed that a fire in any part of the interconnected spaces will be readily obvious to all of the occupants.
3.2.4. Exit capacity is sufficient to provide egress simultaneously for all occupants of all levels by considering all areas to be a single floor area for the determination of required exit capacity.
3.2.5. Each floor level, considered separately, has at least one-half of its individual required exit capacity provided by an exit or exits leading directly out of that level without having to traverse another communicating floor level or be exposed to the smoke or fire spreading from another communicating floor level.
4. In Group A occupancies, a minimum 30-minute enclosure shall be provided to protect all vertical openings not exceeding three stories.
5. In Group B occupancies, a minimum 30-minute enclosure shall be provided to protect all vertical openings not exceeding three stories. This enclosure, or the enclosure specified in Section 803.2.1, shall not be required in the following locations:
5.1. Buildings not exceeding 3,000 square feet (279 m2) per floor.
5.2. Buildings protected throughout by an approved automatic fire sprinkler system.
6. In Group E occupancies, the enclosure shall not be required for vertical openings not exceeding three stories when the building is protected throughout by an approved automatic fire sprinkler system.
7. In Group F occupancies, the enclosure shall not be required in the following locations:
7.1. Vertical openings not exceeding three stories.
7.2. Special purpose occupancies where necessary for manufacturing operations and direct access is provided to at least one protected stairway.
7.3. Buildings protected throughout by an approved automatic sprinkler system.
8. In Group H occupancies, the enclosure shall not be required for vertical openings not exceeding three stories where necessary for manufacturing operations and every floor level has direct access to at least two remote enclosed stairways or other approved exits.
9. In Group M occupancies, a minimum 30-minute enclosure shall be provided to protect all vertical openings not exceeding three stories. This enclosure, or the enclosure specified in Section 803.2.1, shall not be required in the following locations:
9.1. Openings connecting only two floor levels.
9.2. Occupancies protected throughout by an approved automatic sprinkler system.
10. In Group R-1 occupancies, the enclosure shall not be required for vertical openings not exceeding three stories in the following locations:
10.1. Buildings protected throughout by an approved automatic sprinkler system.
10.2. Buildings with less than 25 dwelling units or sleeping units where every sleeping room above the second floor is provided with direct access to a fire escape or other approved second exit by means of an approved exterior door or window having a sill height of not greater than 44 inches (1118 mm) and where:
10.2.1. Any exit access corridor exceeding 8 feet (2438 mm) in length that serves two means of egress, one of which is an unprotected vertical opening, shall have at least one of the means of egress separated from the vertical opening by a 1-hour fire barrier; and
10.2.2. The building is protected throughout by an automatic fire alarm system, installed and supervised in accordance with the International Building Code.
11. In Group R-2 occupancies, a minimum 30-minute enclosure shall be provided to protect all vertical openings not exceeding three stories. This enclosure, or the enclosure specified in Section 803.2.1, shall not be required in the following locations:
11.1. Vertical openings not exceeding two stories with not more than four dwelling units per floor.
11.2. Buildings protected throughout by an approved automatic sprinkler system.
11.3. Buildings with not more than four dwelling units per floor where every sleeping room above the second floor is provided with direct access to a fire escape or other approved second exit by means of an approved exterior door or window having a sill height of not greater than 44 inches (1118 mm) and the building is protected throughout by an automatic fire alarm system complying with Section 804.4.
12. One- and two-family dwellings.
13. Group S occupancies where connecting not more than two floor levels or where connecting not more than three floor levels and the structure is equipped throughout with an approved automatic sprinkler system.
14. Group S occupancies where vertical opening protection is not required for open parking garages and ramps.
15. In Group I-3 occupancies the vertical opening protection may be omitted if either of the following conditions is met:
15.1. The building is in compliance with NFPA 101, Chapter 15; or
15.2. The building is equipped throughout with an automatic fire suppression system.
16. Vertical opening enclosure is not required where the vertical opening enclosure meets the code requirements under which the building was constructed or previously altered.
Where the work area on any floor exceeds 50 percent of that floor area, the enclosure requirements of Section 803.2 shall apply to vertical openings other than stairways throughout the floor.

Exception: Vertical openings located in tenant spaces that are entirely outside the work area.

Where the work area on any floor exceeds 50 percent of that floor area, stairways that are part of the means of egress serving the work area shall, at a minimum, be enclosed with smoke-tight construction on the highest work area floor and all floors below.

Exception: Where stairway enclosure is not required by the International Building Code or the International Fire Code.

Smoke barriers in Group I-2 occupancies shall be installed where required by Sections 803.3.1 and 803.3.2.
Where the work area is on a story used for sleeping rooms for more than 30 patients, the story shall be divided into not less than two compartments by smoke barrier walls complying with Section 803.3.2 such that each compartment does not exceed 22,500 square feet (2093 m2), and the travel distance from any point to reach a door in the required smoke barrier shall not exceed 200 feet (60 960 mm).

Exception: Where neither the length nor the width of the smoke compartment exceeds 150 feet (45 720 mm), the travel distance to reach the smoke barrier door shall not be limited.

The smoke barriers shall be fire-resistance rated for 30 minutes and constructed in accordance with the International Building Code.
The interior finish of walls and ceilings in exits and corridors in any work area shall comply with the requirements of the International Building Code.
Exception: Existing interior finish materials that do not comply with the interior finish requirements of the International Building Code shall be permitted to be treated with an approved fire-retardant coating in accordance with the manufacturer’s instructions to achieve the required rating.
Where the work area on any floor exceeds 50 percent of the floor area, Section 803.4 shall also apply to the interior finish in exits and corridors serving the work area throughout the floor.

Exception: Interior finish within tenant spaces that are entirely outside the work area.

The requirements of Sections 803.5.1 and 803.5.2 shall apply in all work areas.
Every portion of a floor, such as a balcony or a loading dock, that is more than 30 inches (762 mm) above the floor or grade below and is not provided with guards, or those in which the existing guards are judged to be in danger of collapsing, shall be provided with guards.
Where there are no guards or where existing guards must be replaced, the guards shall be designed and installed in accordance with the International Building Code.
When the work being performed exposes the framing of any wall, floor, ceiling or roof, the exposed framing shall comply with Section 717 of the North Carolina Building Code.

Exception: One- and two-family dwellings shall comply with Sections R302.11 and R302.12 of the North Carolina Residential Code.
Any nonresidential occupancy that is located directly below Group R shall be 1- hour separated from the Group R occupancy. The 1-hour assembly is only required to be rated from the nonresidential side.

Exception: If the work area of the nonresidential occupancy is less than 50 percent of the gross floor area of the nonresidential occupancy, Section 803.7 shall not apply.
The requirements of this section shall be limited to work areas in which Level 2 alterations are being performed, and where specified they shall apply throughout the floor on which the work areas are located or otherwise beyond the work area.
Where an approved automatic sprinkler system is installed throughout the story, the required fire-resistance rating for any corridor located on the story shall be permitted to be reduced in accordance with the International Building Code. In order to be considered for a corridor rating reduction, such system shall provide coverage for the stairwell landings serving the floor and the intermediate landings immediately below.
Automatic sprinkler systems shall be provided in accordance with the requirements of Sections 804.2.1 through 804.2.5. Installation requirements shall be in accordance with the International Building Code.

804.2.1 High-Rise Buildings

STATE AMENDMENT
In high-rise buildings, work areas that have exits or corridors shared by more than one tenant or that have exits or corridors serving an occupant load greater than 30 shall be provided with automatic sprinkler protection in the entire work area where the work area is located on a floor that has a sufficient sprinkler water supply system from an existing standpipe or a sprinkler riser serving that floor. See Section 101.10.
Where the work area on any floor exceeds 50 percent of that floor area, Section 804.2.1 shall apply to the entire floor on which the work area is located.

Exception: Tenant spaces that are entirely outside the work area.

In buildings with occupancies in Groups A, B, E, F-1, H, I, M, R-1, R-2, R-4, S-1 and S-2, work areas that have exits or corridors shared by more than one tenant or that have exits or corridors serving an occupant load greater than 30 shall be provided with automatic sprinkler protection where all of the following conditions occur:
1. The work area is required to be provided with automatic sprinkler protection in accordance with the International Building Code as applicable to new construction; and
2. The work area exceeds 50 percent of the floor area.
Deleted
Exception: If the building does not have sufficient municipal water supply for design of a fire sprinkler system available to the floor without installation of a new fire pump, work areas shall be protected by an automatic smoke detection system throughout all occupiable spaces other than sleeping units or individual dwelling units that activates the occupant notification system in accordance with Sections 907.4, 907.5 and 907.6 of the International Building Code.

804.2.2 Low-rise buildings

STATE AMENDMENT
Work areas that increase the fire area or calculated occupant load above the limits listed in Sections 903.2.1 through 903.2.10 of the International Building Code shall meet the requirements of those sections.

804.2.2.1 Mixed Uses

STATE AMENDMENT
In work areas containing mixed uses, one or more of which requires automatic sprinkler protection in accordance with Section 804.2.2, such protection shall not be required throughout the work area provided that the uses requiring such protection are separated from those not requiring protection by fire-resistance-rated construction having a minimum 2-hour rating for Group H and a minimum 1-hour rating for all other occupancy groups.

804.2.3 Windowless Stories

STATE AMENDMENT
Work located in a windowless story, as determined in accordance with the International Building Code, shall be sprinklered where the work area is required to be sprinklered under the provisions of the International Building Code for newly constructed buildings and the building has a sufficient municipal water supply without installation of a new fire pump. In all buildings, any windowless story located below the seventh story above grade which is created by the work being performed or any existing windowless story located below the seventh story in which the work area exceeds 50 percent of the gross enclosed floor area of the windowless story, shall be equipped throughout with an automatic fire suppression system installed in accordance with Section 903.2.11.1 of the International Fire Code.

Exceptions:
  1. Stories or basements shall not be considered windowless where fire-fighter access through openings meeting all of the following is provided:
    1. Openings such as doors, windows, or access panels are located on at least one side of the story or basement;
    2. The openings on each story or basement shall be a minimum of 32 inches by 48 inches in size and located horizontally a maximum of 100 feet (3048 mm) apart or 22 inches by 42 inches (558 mm by 1066 mm) in size and located horizontally a maximum of 30 feet (9144 mm) apart;
    3. Openings shall be unobstructed to allow fire fighting and rescue operations from the exterior;
    4. Openings in stories above grade shall have a sill height of not more than 36 inches measured from the finished floor level. Openings in basements shall have no sill height restrictions;
    5. Openings shall be readily identifiable and openable from the outside; and
    6. Where openings are provided only on one wall of a story or basement the maximum distance to the opposite wall is 75 feet.
  2. Windowless basements 3,000 gross square feet or less in area shall not require automatic fire suppression when a supervised automatic fire alarm is provided in accordance with Section 907 of the North Carolina Fire Prevention Code.
  3. Windowless basements greater than 3,000 but less than 10,000 gross square feet shall be permitted to connect to the domestic water supply when all of the following conditions are met:
    1. The automatic fire suppression system shall be provided with a fire department connection, which shall be marked with a sign reading “Basement Area Sprinkler Water Supply;” and
    2. A supervised automatic fire alarm system shall be installed in accordance with Section 907 of the International Fire Code.
In buildings and areas listed in Table 903.2.11.6 of the International Building Code, work areas that have exits or corridors shared by more than one tenant or that have exits or corridors serving an occupant load greater than 30 shall be provided with an automatic sprinkler system under the following conditions:
1. The work area is required to be provided with an automatic sprinkler system in accordance with the International Building Code applicable to new construction; and
2. The building has sufficient municipal water supply for design of an automatic sprinkler system available to the floor without installation of a new fire pump.

804.2.4 Supervision

STATE AMENDMENT
All newly installed complete or partial sprinkler systems shall comply with Section 903.4 of the International Building Code.

Exception: Supervision is not required for the following:
  1. Underground gate valve with roadway boxes.
  2. Automatic sprinkler systems installed in accordance with NFPA 13R where a common supply main is used to supply both domestic and automatic sprinkler systems and a separate shutoff valve for the automatic sprinkler system is not provided.

804.2.5 Supervision

STATE AMENDMENT
Fire sprinkler systems required by this section shall be supervised by one of the following methods:
1. Approved central station system in accordance with NFPA 72;
2. Approved proprietary system in accordance with NFPA 72;
3. Approved remote station system of the jurisdiction in accordance with NFPA 72; or
4. When approved by the code official, approved local alarm service that will cause the sounding of an alarm in accordance with NFPA 72.

Exception: Supervision is not required for the following:

1. Underground gate valve with roadway boxes.
2. Halogenated extinguishing systems.
3. Carbon dioxide extinguishing systems.
4. Dry- and wet-chemical extinguishing systems.
5. Automatic sprinkler systems installed in accordance with NFPA 13R where a common supply main is used to supply both domestic and automatic sprinkler systems and a separate shutoff valve for the automatic sprinkler system is not provided.

804.2.5 Group H

STATE AMENDMENT
An automatic sprinkler system shall be installed in all Group H occupancies complying with Section 903.2.5 of the International Building Code.

804.3 Standpipes

STATE AMENDMENT
Where the work area includes exits or corridors shared by more than one tenant and is located more than 50 feet (15 240 mm) above or below the lowest level of fire department access, a standpipe system shall be provided. Standpipes shall have an approved fire department connection with hose connections at each floor level above or below the lowest level of fire department access. Standpipe systems shall be installed in accordance with the International Building Code.
Exceptions:
1. No pump shall be required provided that the standpipes are capable of accepting delivery by fire department apparatus of a minimum of 250 gallons per minute (gpm) at 65 pounds per square inch (psi) (946 L/m at 448KPa) to the topmost floor in buildings equipped throughout with an automatic sprinkler system or a minimum of 500 gpm at 65 psi (1892 L/m at 448KPa) to the topmost floor in all other buildings. Where the standpipe terminates below the topmost floor, the standpipe shall be designed to meet (gpm/psi) (L/m/KPa) requirements of this exception for possible future extension of the standpipe.
2. The interconnection of multiple standpipe risers shall not be required.
Work areas shall meet the requirements of Sections 907.2.1 through 907.2.23 of the North Carolina Fire Prevention Code and Section 804.4.3. For one- and two-family dwellings and townhouses an approved fire alarm system shall be installed in accordance with Sections 804.4.1 through 804.4.3. Where automatic sprinkler protection is provided in accordance with Section 804.2 and is connected to the building fire alarm system, automatic heat detection shall not be required.

An approved automatic fire detection system shall be installed in accordance with the provisions of this code and NFPA 72. Devices, combinations of devices, appliances, and equipment shall be approved. The automatic fire detectors shall be smoke detectors, except that an approved alternative type of detector shall be installed in spaces such as boiler rooms, where products of combustion are present during normal operation in sufficient quantity to actuate a smoke detector.

804.4.2.

Exception: Buildings other than one- and two-family dwellings that do not have an existing fire alarm and detection system are not required to install a fire alarm and detection system.
A fire alarm system shall be installed in accordance with Sections 804.4.1.1 through 804.4.1.7. Existing alarm-notification appliances shall be automatically activated throughout the building. Where the building is not equipped with a fire alarm system, alarm-notification appliances within the work area shall be provided and automatically activated.

Exceptions:

1. Occupancies with an existing, previously approved fire alarm system.
2. Where selective notification is permitted, alarm-notification appliances shall be automatically activated in the areas selected.
Detached one- and twofamily dwellings and townhouses shall be provided with smoke alarms in accordance with Sections 804.4.1.1 through 804.4.1.4.

Exceptions:
  1. Work involving the exterior surfaces of dwellings, such as the replacement of roofing or siding, or the addition or replacement of windows or doors, or the addition of a porch or deck, are exempt from the requirement.
  2. Installation, alteration or repairs of plumbing or mechanical systems are exempt from the requirements of this section.

804.4.1.1 Group E

STATE AMENDMENT
A fire alarm system shall be installed in work areas of Group E occupancies as required by the International Fire Code for existing Group E occupancies.
All smoke alarms shall be listed in accordance with UL 217 and installed in accordance with the provisions of this code and the household fire warning equipment provisions of NFPA 72.

804.4.1.2 Group I-1

STATE AMENDMENT
A fire alarm system shall be installed in work areas of Group I-1 residential care/assisted living facilities as required by the International Fire Code for existing Group I-1 occupancies.
Household fire alarm systems installed in accordance with NFPA 72 that include smoke alarms, or a combination of smoke detector and audible notification device installed as required by this section for smoke alarms, shall be permitted. The household fire alarm system shall provide the same level of smoke detection and alarm as required by this section for smoke alarms. Where a household fire warning system is installed using a combination smoke detector and audible notification device(s), it shall become a permanent fixture of the occupancy and owned by the homeowner. The system shall be monitored by an approved supervising station and be maintained in accordance with NFPA 72.

Exception: Where smoke alarms are provided meeting the requirements of Section 804.4.1.4.

804.4.1.3 Group I-2

STATE AMENDMENT
A fire alarm system shall be installed in work areas of Group I-2 occupancies as required by the International Fire Code for existing Group I-2 occupancies.

804.4.1.3 Location

STATE AMENDMENT
Smoke alarms shall be installed in the following locations:
  1. In each sleeping room.
  2. Outside each separate sleeping area in the immediate vicinity of the bedrooms.
  3. On each additional story of the dwelling, including basements and habitable attics but not including crawl spaces and uninhabitable attics. In dwellings or dwelling units with split levels and without an intervening door between 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.
   When more than one smoke alarm is required to be installed within an individual dwelling unit the alarm devices shall be interconnected in such a manner that the actuation of one alarm will activate all of the alarms in the individual unit.

804.4.1.4 Group I-3

STATE AMENDMENT
A fire alarm system shall be installed in work areas of Group I-3 occupancies as required by the International Fire Code for existing Group I-3 occupancies.

804.4.1.4 Power source

STATE AMENDMENT
Smoke alarms shall receive their primary power from the building wiring when such wiring is served from a commercial source, and when primary power is interrupted, shall receive power from a battery. Wiring shall be permanent and without a disconnecting switch other than those required for overcurrent protection. Smoke alarms shall be interconnected.

Exceptions:
  1. Smoke alarms shall be permitted to be battery operated when installed in buildings without commercial power.
  2. Interconnection and hard-wiring of smoke alarms in existing areas shall not be required where the alterations or repairs do not result in the removal of interior wall or ceiling finishes exposing the structure. Smoke alarm locations are required per Section R314.2 of the North Carolina Residential Code but may be battery powered and shall be designed to emit a recurring signal when batteries are low and need to be replaced.

804.4.1.5 Group R-1

STATE AMENDMENT
A fire alarm system shall be installed in Group R-1 occupancies as required by the International Fire Code for existing Group R-1 occupancies.

804.4.1.6 Group R-2

STATE AMENDMENT
A fire alarm system shall be installed in work areas of Group R-2 apartment buildings as required by the International Fire Code for existing Group R-2 occupancies.

804.4.1.7 Group R-4

STATE AMENDMENT
A fire alarm system shall be installed in work areas of Group R-4 residential care/assisted living facilities as required by the International Fire Code for existing Group R-4 occupancies.
Where the work area on any floor exceeds 50 percent of that floor area, Section 804.4.1 shall apply throughout the floor.

Exception: Alarm-initiating and notification appliances shall not be required to be installed in tenant spaces outside of the work area.

Carbon monoxide detection shall be installed in accordance with Section 403.7.

804.4.3 Smoke Alarms

STATE AMENDMENT
Individual sleeping units and individual dwelling units in any work area in Group R and I-1 occupancies shall be provided with smoke alarms in accordance with the International Fire Code.

Exception: Interconnection of smoke alarms outside of the work area shall not be required.

Any nonresidential occupancy work area located directly below Group R shall be provided with single- or multi-station smoke detectors complying with NFPA 72 and shall provide an audible alarm in each dwelling unit located on floors above the nonresidential work area. The detectors shall be AC powered with battery backup.

Exceptions:
  1. Hardwired, interconnected smoke detectors installed throughout the building shall be accepted as complying with Section 804.4.3.
  2. If the work area of the nonresidential occupancy is less than 50 percent of the gross floor area of the nonresidential occupancy, Section 804.4.3 shall not apply.
The requirements of this section shall be limited to work areas that include exits or corridors shared by more than one tenant within the work area in which Level 2 alterations are being performed, and where specified they shall apply throughout the floor on which the work areas are located or otherwise beyond the work area.

805.2 General

STATE AMENDMENT
The means of egress shall comply with the requirements of this section.
Exceptions:
1. Where the work area and the means of egress serving it complies with NFPA 101.
2. Means of egress conforming to the requirements of the building code under which the building was constructed shall be considered compliant means of egress if, in the opinion of the code official, they do not constitute a distinct hazard to life.
3. In one- and two-family dwellings, stairways not required for egress are permitted to be as narrow as 26 inches.
The capacity of the means of egress in each work area shall be sufficient for the maximum permitted occupant load of the work area and any adjacent spaces served by that means of egress as calculated on a per floor basis. Means of egress shall be measured in units of exit width of 22 inches (558 mm). The maximum permitted occupant load of a space shall be determined by the capacity of the means of egress serving the space as calculated in accordance with Table 805.2.1. The building owner shall have the option of establishing a reasonable restriction on the occupant load of the space based on the existing capacity of the means of egress or of providing additional egress capacity.

TABLE 805.2.1a,b
CAPACITY PER UNIT OF EGRESS WIDTH
USE GROUP NUMBER OF OCCUPANTS
Without Fire Suppression With Fire Suppression
Stairways Doors, Ramps, and Corridors Stairways Doors, Ramps, and Corridors
Ac 75 100 113 150
B 60 100 90 150
E 75 100 113 150
F 60 100 90 150
H NA NA 60 100
I-1 60 100 90 100
I-2 22 30 35 45
I-3 60 100 90 150
M 60 100 90 150
R 75 100 113 150
S 60 100 90 150
Unit of egress width = 22 inches
NA = Not Allowed
  1. The occupant load may be equal to the total number of occupants for which exit capacity is provided as determined by Table 805.2.1 above.
  2. Interpolation shall be allowed in determining capacity of egress width.
  3. For Use Group A occupancies, the resulting total occupant load shall not exceed one occupant per 5 square feet of net floor area over the entire use.
The number of exits shall be in accordance with Sections 805.3.1 through 805.3.3.
Every story utilized for human occupancy on which there is a work area that includes exits or corridors shared by more than one tenant within the work area shall be provided with the minimum number of exits based on the occupancy and the occupant load in accordance with the International Building Code. In addition, the exits shall comply with Sections 805.3.1.1 and 805.3.1.2.
Only one exit is required from buildings and spaces of the following occupancies:
1. In Group A, B, E, F, M, U and S occupancies, a single exit is permitted in the story at the level of exit discharge when the occupant load of the story does not exceed 50 49 and the exit access travel distance does not exceed 75 feet (22 860 mm).

Exception: Licensed Group E adult and child day care occupancies shall have a minimum of two exits. Rooms where occupants receive care are on the level of exit discharge and each of these rooms has an exit door directly to the exterior may have a single exit.

2. Group B, F-2, and S-2 occupancies not more than two stories in height that are not greater than 3,500 square feet per floor (326 m2), when the exit access travel distance does not exceed 75 feet (22 860 mm). The minimum fire-resistance rating of the exit enclosure and of the opening protection shall be 1 hour.
3. Open parking structures where vehicles are mechanically parked.
4. In community residences for the developmentally disabled, the maximum occupant load excluding staff is 12.
5. Groups R-1 and R-2 not more than two stories in height, when there are not more than four dwelling units per floor and the exit access travel distance does not exceed 50 feet (15 240 mm). The minimum fire-resistance rating of the exit enclosure and of the opening protection shall be 1 hour.
6. In multilevel dwelling units in buildings of occupancy Group R-1 or R-2, an exit shall not be required from every level of the dwelling unit provided that one of the following conditions is met:
6.1. The travel distance within the dwelling unit does not exceed 75 feet (22 860 mm); or
6.2. The building is not more than three stories in height and all third-floor space is part of one or more dwelling units located in part on the second floor; and no habitable room within any such dwelling unit shall have a travel distance that exceeds 50 feet (15 240 mm) from the outside of the habitable room entrance door to the inside of the entrance door to the dwelling unit.
7. In Group R-2, H-4, H-5 and I occupancies and in rooming boarding houses and child care centers, a single exit is permitted in a one-story building with a maximum occupant load of 10 and the exit access travel distance does not exceed 75 feet (22 860 mm).
8. In buildings of Group R-2 occupancy that are equipped throughout with an automatic fire sprinkler system, a single exit shall be permitted from a basement or story below grade if every dwelling unit on that floor is equipped with an approved window providing a clear opening of at least 5 square feet (0.47 m2) in area, a minimum net clear opening of 24 inches (610 mm) in height and 20 inches (508 mm) in width, and a sill height of not more than 44 inches (1118 mm) above the finished floor.
9. In buildings of Group R-2 occupancy of any height with not more than four dwelling units per floor; with a smokeproof enclosure or outside stair as an exit; and with such exit located within 20 feet (6096 mm) of travel to the entrance doors to all dwelling units served thereby.
10. In buildings of Group R-3 occupancy equipped throughout with an automatic fire sprinkler system, only one exit shall be required from basements or stories below grade.
11. Licensed Group R-4 adult and child day care rooms where occupants receive care and that meet all of the following shall have a minimum of one means of egress:
11.1. Located on the level of exit discharge, and
11.2. The egress door discharges directly to the exterior.
When more than one exit is required, an existing or newly constructed fire escape complying with Section 805.3.1.2.1 shall be accepted as providing one of the required means of egress.
Fire escapes shall comply with all of the following requirements:
1. Occupants shall have unobstructed access to the fire escape without having to pass through a room subject to locking.
2. Access to a new fire escape shall be through a door, except that windows shall be permitted to provide access from single dwelling units or sleeping units in Group R-1, R-2 and I-1 occupancies or to provide access from spaces having a maximum occupant load of 10 in other occupancy classifications.
2.1. The window shall have a minimum net clear opening of 5.7 square feet (0.53 m2) or 5 square feet (0.46 m2) where located at grade.
2.2. The minimum net clear opening height shall be 24 inches (610 mm) and net clear opening width shall be 20 inches (508 mm).
2.3. The bottom of the clear opening shall not be greater than 44 inches (1118 mm) above the floor.
2.4. The operation of the window shall comply with the operational constraints of the International Building Code.
3. Newly constructed fire escapes shall be permitted only where exterior stairs cannot be utilized because of lot lines limiting the stair size or because of the sidewalks, alleys, or roads at grade level.
4. Openings within 10 feet (3048 mm) of fire escape stairs shall be protected by fire assemblies having minimum 3/4-hour fire-resistance ratings.

Exception: Opening protection shall not be required in buildings equipped throughout with an approved automatic sprinkler system.

5. In all buildings of Group E occupancy, up to and including the 12th grade, buildings of Group I occupancy, rooming boarding houses and childcare centers, ladders of any type are prohibited on fire escapes used as a required means of egress.
The fire escape shall be designed to support a live load of 100 pounds per square foot (4788 Pa) and shall be constructed of steel or other approved noncombustible materials. Fire escapes constructed of wood not less than nominal 2 inches (51 mm) thick are permitted on buildings of Type V construction. Walkways and railings located over or supported by combustible roofs in buildings of Types III and IV construction are permitted to be of wood not less than nominal 2 inches (51 mm) thick.
Stairs shall be at least 22 inches (559 mm) wide with risers not more than, and treads not less than, 8 inches (203 mm). Landings at the foot of stairs shall not be less than 40 inches (1016 mm) wide by 36 inches (914 mm) long and located not more than 8 inches (203 mm) below the door.

805.3.2 Mezzanines

STATE AMENDMENT
Mezzanines in the work area and with an occupant load of more than 50 49 or in which the travel distance to an exit exceeds 75 feet (22 860 mm) shall have access to at least two independent means of egress.

Exception: Two independent means of egress are not required where the travel distance to an exit does not exceed 100 feet (30 480 mm) and the building is protected throughout with an automatic sprinkler system.

All Where the main entrance is included in the alteration, buildings of Group A with an occupant load of 300 or more shall be provided with a main entrance capable of serving as the main exit with an egress capacity of at least one-half of the total occupant load. The remaining exits shall be capable of providing one-half of the total required exit capacity.

Exception: Where there is no well-defined main exit or where multiple main exits are provided, exits shall be permitted to be distributed around the perimeter of the building provided that the total width of egress is not less than 100 percent of the required width.

Egress doorways in any work area shall comply with Sections 805.4.1 through 805.4.5.
Work areas shall be provided with two egress doorways in accordance with the requirements of Sections 805.4.1.1 and 805.4.1.2. through 805.4.1.3.
In any work area, all rooms and spaces having an occupant load greater than of 50 or more in which the travel distance to an exit exceeds 75 feet (22 860 mm) shall have a minimum of two egress doorways.

Exceptions:

1. Storage rooms having a maximum occupant load of 10.
2. Where the work area is served by a single exit in accordance with Section 805.3.1.1.
3. The occupant load of the space may be restricted to comply with North Carolina Building Code, Sections 1015, 1018, and 1021. Signage indicating the allowed quantity of occupants shall be permanently mounted in the building at a location approved by the local fire marshal.
In buildings of Group I-2 occupancy, any patient sleeping room or suite of patient rooms greater than 1,000 square feet (93 m2) within the work area shall have a minimum of two egress doorways.
Group E and R-4 adult and child day care facilities shall have two means of egress. Rooms where occupants receive care and that meet all of the following shall have a minimum of one means of egress:
  1. Located on the level of exit discharge, and
  2. The egress door discharges directly to the exterior.

805.4.2 Door Swing

STATE AMENDMENT
In the work area and in the egress path from any work area to the exit discharge, all egress doors serving an occupant load greater than of 50 or more shall swing in the direction of exit travel.
Where the work area exceeds 50 percent of the floor area, door swing shall comply with Section 805.4.2 throughout the floor.

Exception: Means of egress within or serving only a tenant space that is entirely outside the work area.

In any work area, all doors opening onto an exit passageway at grade or an exit stair shall be self-closing or automatic-closing by listed closing devices.

Exceptions:

1. Where exit enclosure is not required by the International Building Code.
2. Means of egress within or serving only a tenant space that is entirely outside the work area.
Where the work area exceeds 50 percent of the floor area, doors shall comply with Section 805.4.3 throughout the exit stair from the work area to, and including, the level of exit discharge.
In any work area, and in the egress path from any work area to the exit discharge, in buildings or portions thereof of Group A assembly occupancies with an occupant load greater than 100, all required exit doors equipped with latching devices shall be equipped with approved panic hardware.
Where the work area exceeds 50 percent of the floor area, panic hardware shall comply with Section 805.4.4 throughout the floor.

Exception: Means of egress within a tenant space that is entirely outside the work area.

Work areas in buildings of Group I-2 and I-3 occupancy occupancies having remote power unlocking capability for more than 10 locks shall be provided with an emergency power source for such locks. Power shall be arranged to operate automatically upon failure of normal power within 10 seconds and for a duration of not less than 1 hour.
Remote locking shall comply with Section 407.10 of the North Carolina Building Code.
Openings in corridor walls in any work area shall comply with Sections 805.5.1 through 805.5.4.
Exception: Openings in corridors where such corridors are not required to be rated in accordance with the International Building Code.
Corridor doors in the work area shall not be constructed of hollow core wood and shall not contain louvers. All dwelling unit or sleeping unit corridor doors in work areas in buildings of Groups R-1, R-2, and I-1 shall be at least 13/8-inch (35 mm) solid core wood or approved equivalent and shall not have any glass panels, other than approved wired glass or other approved glazing material in metal frames. All dwelling unit or sleeping unit corridor doors in work areas in buildings of Groups R-1, R-2, and I-1 shall be equipped with approved door closers. All replacement doors shall be 13/4-inch (45 mm) solid bonded wood core or approved equivalent, unless the existing frame will accommodate only a 13/8-inch (35 mm) door.

Exceptions:

1. Corridor doors within a dwelling unit or sleeping unit.
2. Existing doors meeting the requirements of Guidelines on Fire Ratings of Archaic Materials and Assemblies (IEBC Resource A) for a rating of 15 minutes or more shall be accepted as meeting the provisions of this requirement.
3. Existing doors in buildings protected throughout with an approved automatic sprinkler system shall be required only to resist smoke, be reasonably tight fitting, and shall not contain louvers.
4. In group homes with a maximum of 15 occupants and that are protected with an approved automatic detection system, closing devices may be omitted.
5. Door assemblies having a fire protection rating of at least 20 minutes.
In all buildings of Group I-1, R-1 and R-2 occupancy, all transoms in corridor walls in work areas shall either be glazed with 1/4-inch (6.4 mm) wired glass set in metal frames or other glazing assemblies having a fire protection rating as required for the door and permanently secured in the closed position or sealed with materials consistent with the corridor construction.
In any work area, any other sash, grille, or opening in a corridor and any window in a corridor not opening to the outside air shall be sealed with materials consistent with the corridor construction.
Where the work area exceeds 50 percent of the floor area, Section 805.5.3 shall be applicable to all corridor windows, grills, sashes, and other openings on the floor.

Exception: Means of egress within or serving only a tenant space that is entirely outside the work area.

Where the work area on any floor exceeds 50 percent of the floor area, the requirements of Sections 805.5.1 through 805.5.3 shall apply throughout the floor.

805.6 Dead-End Corridors

STATE AMENDMENT
Dead-end corridors in any work area shall not exceed 35 feet (10 670 mm).
Exceptions:
1. Where dead-end corridors of greater length are permitted by the International Building Code.
2. In other than Group A and H occupancies, the maximum length of an existing dead-end corridor shall be 50 feet (15 240 mm) in buildings equipped throughout with an automatic fire alarm system installed in accordance with the International Building Code.
3. In other than Group A and H occupancies, the maximum length of an existing dead-end corridor shall be 70 feet (21 356 mm) in buildings equipped throughout with an automatic sprinkler system installed in accordance with the International Building Code.
4. In other than Group A and H occupancies, the maximum length of an existing, newly constructed, or extended dead-end corridor shall not exceed 50 feet (15 240 mm) on floors equipped with an automatic sprinkler system installed in accordance with the International Building Code.
Means-of-egress lighting shall be in accordance with this section, as applicable.
Means of egress in all work areas shall be provided with artificial lighting in accordance with the requirements of the International Building Code.
Where the work area on any floor exceeds 50 percent of that floor area, means of egress throughout the floor shall comply with Section 805.7.1.

Exception: Means of egress within or serving only a tenant space that is entirely outside the work area.

Exit signs shall be in accordance with this section, as applicable.
Means of egress in all work areas shall be provided with exit signs in accordance with the requirements of the International Building Code.
Where the work area on any floor exceeds 50 percent of that floor area, means of egress throughout the floor shall comply with Section 805.8.1.

Exception: Means of egress within a tenant space that is entirely outside the work area.

The requirements of Sections 805.9.1 and 805.9.2 shall apply to handrails from the work area floor to, and including, the level of exit discharge.
Every required exit stairway that is part of the means of egress for any work area and that has three or more risers and is not provided with at least one handrail, or in which the existing handrails are judged to be in danger of collapsing, shall be provided with handrails for the full length of the run of steps on at least one side. All exit stairways with a required egress width of more than 66 inches (1676 mm) shall have handrails on both sides.
Handrails required in accordance with Section 805.9.1 shall be designed and installed in accordance with the provisions of the International Building Code.
The requirements of Sections 805.10.1 and 805.10.2 shall apply to guards from the work area floor to, and including, the level of exit discharge but shall be confined to the egress path of any work area.
Every open portion of a stair, landing, or balcony that is more than 30 inches (762 mm) above the floor or grade below and is not provided with guards, or those portions in which existing guards are judged to be in danger of collapsing, shall be provided with guards.
Guards required in accordance with Section 805.10.1 shall be designed and installed in accordance with the International Building Code.
When the work being performed creates a bedroom below the fourth floor in a Group R occupancy, at least one sleeping room window or exterior door shall comply with Sections 805.11.1 through 805.11.3.

Exception: Emergency escape and rescue openings are not required to comply with this section where the sleeping room is provided with a door to a corridor having access to two remote exits or in a building equipped throughout with an automatic fire suppression system.

805.11.1 Operation

STATE AMENDMENT
Emergency escape and rescue openings shall be operational from the inside without the use of keys or tools.

805.11.2 Sill height

STATE AMENDMENT
The opening shall have a sill height not greater than 44 inches (1117 mm) measured from the floor.

805.11.3 Minimum size

STATE AMENDMENT
The minimum net clear opening shall be 5.7 square feet (0.529 m2). The minimum net clear opening width shall be 20 inches (508 mm). The minimum net clear opening height shall be 24 inches (609 mm). The clear opening dimensions shall be the result of normal operation of the opening.

806.1 General

STATE AMENDMENT
A building, facility , or element that is altered shall comply with this section and Section 705. the applicable provisions in Sections 806.1.1 through 806.1.14, 806.2 through 806.6, and Chapter 11 of the International Building Code unless it is technically infeasible. Where compliance with this section is technically infeasible, the alteration shall provide access to the maximum extent that is technically feasible.

   A facility that is constructed or altered to be accessible shall be maintained accessible during occupancy.

Exceptions:
  1. The altered element or space is not required to be on an accessible route unless required by Section 806.2.
  2. Accessible means of egress required by Chapter 10 of the International Building Code are not required to be provided in existing facilities.
  3. Type B dwelling or sleeping units required by Section 1107 of the International Building Code are not required to be provided in existing facilities undergoing less than a Level 3 alteration.
  4. The alteration to Type A individually owned dwelling units within a Group R-2 occupancy shall meet the provisions for Type B dwelling units.
  5. Accessibility improvements outside the work area are not required unless required by Section 806.2.

806.1.1 Entrances

STATE AMENDMENT
Where an alteration includes alterations to an entrance, and the facility has an accessible entrance on an accessible route, the altered entrance is not required to be accessible unless required by Section 806.2. Signs complying with Section 1110 of the International Building Code shall be provided.

806.1.2 Elevators

STATE AMENDMENT
Altered elements of existing elevators shall comply with ASME A17.1/CSA B44 and ICC A117.1. Such elements shall also be altered in elevators programmed to respond to the same hall call control as the altered elevator.

806.1.3 Platform lifts

STATE AMENDMENT
Platform (wheelchair) lifts complying with ICC A117.1 and installed in accordance with ASME A18.1 shall be permitted as a component of an accessible route.

806.1.4 Ramps

STATE AMENDMENT
Where steeper slopes than allowed by Section 1010.3 of the International Building Code are necessitated by space limitations, the slope of ramps in or providing access to existing facilities shall comply with Table 806.1.4.

TABLE 806.1.4
RAMPS
SLOPE MAXIMUM RISE
Steeper than 1:10 but not steeper than 1:8 3 inches
Steeper than 1:12 but not steeper than 1:10 6 inches
For SI: 1 inch = 25.4 mm.

806.1.5 Dining areas

STATE AMENDMENT
An accessible route to raised or sunken dining areas or to outdoor seating areas is not required provided that the same services and decor are provided in an accessible space usable by any occupant and not restricted to use by people with a disability.

806.1.6 Performance areas

STATE AMENDMENT
Where it is technically infeasible to alter performance areas to be on an accessible route, at least one of each type of performance area shall be made accessible.
In alterations, accessible wheelchair spaces are not required to be located within the defined area of raised jury boxes or witness stands and shall be permitted to be located outside these spaces where ramp or lift access poses a hazard by restricting or projecting into a required means of egress.
Where Group I-1, I-2, I-3, R-1, R-2 or R-4 dwelling or sleeping units are being altered, the requirements of Section 1107 of the International Building Code for accessible units and Chapter 9 of the International Building Code for visible alarms apply only to the quantity of the spaces being altered.
Where more than 20 Group R-2 dwelling or sleeping units are being altered, the requirements of Section 1107 of the International Building Code for Type A units and Chapter 9 of the International Building Code for visible alarms apply only to the quantity of the spaces being altered.

806.1.10 Toilet rooms

STATE AMENDMENT
Where it is technically infeasible to alter existing toilet and bathing rooms to be accessible, an accessible family or assisted-use toilet or bathing room constructed in accordance with Section 1109.2.1 of the International Building Code is permitted. The family or assisted-use toilet or bathing room shall be located on the same floor and in the same area as the existing toilet or bathing rooms.
Where it is technically infeasible to provide accessible dressing, fitting, or locker rooms at the same location as similar types of rooms, one accessible room on the same level shall be provided. Where separate sex facilities are provided, accessible rooms for each sex shall be provided. Separate sex facilities are not required where only unisex rooms are provided.

806.1.12 Fuel dispensers

STATE AMENDMENT
Operable parts of replacement fuel dispensers shall be permitted to be 54 inches (1370 mm) maximum measured from the surface of the vehicular way where fuel dispensers are installed on existing curbs.

806.1.13 Thresholds

STATE AMENDMENT
The maximum height of thresholds at doorways shall be 34 inch (19.1 mm). Such thresholds shall have beveled edges on each side.
An alteration of an existing element, space, or area of a facility shall not impose a requirement for greater accessibility than that which would be required for new construction. Alterations shall not reduce or have the effect of reducing accessibility of a facility or portion of a facility.
Where an alteration affects the accessibility to a, or contains an area of, primary function, the route to the primary function area shall be accessible. The accessible route to the primary function area shall include toilet facilities or drinking fountains serving the area of primary function.

Exceptions:
  1. The costs of providing the accessible route are not required to exceed 20 percent of the costs of the alterations affecting the area of primary function.
  2. This provision does not apply to alterations limited solely to windows, hardware, operating controls, electrical outlets and signs.
  3. This provision does not apply to alterations limited solely to mechanical systems, electrical systems, installation or alteration of fire protection systems and abatement of hazardous materials.
  4. This provision does not apply to alterations undertaken for the primary purpose of increasing the accessibility of a facility.
  5. This provision does not apply to altered areas limited to Type B dwelling and sleeping units.
In alterations where an escalator or stair is added where none existed previously, an accessible route shall be provided in accordance with Sections 1104.4 and 1104.5 of the International Building Code.
Where Group I-1, I-2, I-3, R-1, R-2 or R-4 dwelling or sleeping units are being added, the requirements of Section 1107 of the International Building Code for accessible units and Chapter 9 of the International Building Code for visible alarms apply only to the quantity of spaces being added.
Where 11 or more more than 20 Group R-2 dwelling or sleeping units are being added, the requirements of Section 1107 of the International Building Code for Type A units and Chapter 9 of the International Building Code for visible alarms apply only to the quantity of the spaces being added.
Where four or more Group I-1, I-2, R-1, R-2, R-3 or R-4 dwelling or sleeping units are being added, the requirements of Section 1107 of the International Building Code for Type B units and Chapter 9 of the International Building Code for visible alarms apply only to the quantity of the spaces being added.
Structural elements and systems within buildings undergoing Level 2 alterations shall comply with this section.
New structural elements in alterations, including connections and anchorage, shall comply with the International Building Code.
The minimum design loads on existing elements of a structure that do not support additional loads as a result of an alteration shall be the loads applicable at the time the building was constructed.
Alterations shall not reduce the capacity of existing gravity load-carrying structural elements unless it is demonstrated that the elements have the capacity to carry the applicable design gravity loads required by the International Building Code. Existing structural elements supporting any additional gravity loads as a result of the alterations, including the effects of snow drift, shall comply with the International Building Code.
Exceptions:
1. Structural elements whose stress is not increased by more than 5 percent.
2. Buildings of Group R occupancy with not more than five dwelling or sleeping units used solely for residential purposes where the existing building and its alteration comply with the conventional light-frame construction methods of the International Building Code or the provisions of the International Residential Code.
Alterations affecting the demands or capacities of existing elements of the lateral load-resisting system shall be evaluated using the wind provisions of the International Building Code and the reduced IBC-level seismic forces. Any existing lateral load-resisting structural elements whose demand-capacity ratio with the alteration considered is more than 10 percent greater than its demand-capacity ratio with the alteration ignored shall be brought into compliance with those wind and seismic provisions. In addition, the alteration shall not create a structural irregularity prohibited by ASCE 7 unless the entire structure complies with Section 301.1.4.2. For the purposes of this section, comparisons of demand-capacity ratios and calculation of design lateral loads, forces and capacity shall account for the cumulative effects of additions and alterations since the original construction. The work shall not cause any diminution of existing structural strength below that which exists at the time of application for a permit or that which is required by the applicable codes of the North Carolina State Building Code, whichever is lower.
Newly introduced fixed loads shall not exceed the uniformly distributed live loads or concentrated live load criteria of Table 1607.1 of the North Carolina Building Code and shall not create deflection that exceeds the standards set forth below. As used in this section, fixed loads shall mean uniform or concentrated loads and shall include equipment, files, library stacks, or similar loading conditions.
  1. For wood frame construction, deflection shall not exceed L/180 for roofs with a slope of 3 in 12 or less or L/120 for roofs with a slope of greater than 3 in 12 and for floors.
  2. For steel frame construction, deflection shall not exceed L/240 for roofs with a slope of 3 in 12 or less or L/180 for roofs with a slope of greater than 3 in 12 and for floors.
  3. For concrete construction, deflection shall not exceed L/180 for roofs or L/240 for floors.
Alterations of existing structural elements and additions of new structural elements that are initiated for the purpose of increasing the lateral force-resisting strength or stiffness of an existing structure and that are not required by other sections of this code shall not be required to be designed for forces conforming to the International Building Code, provided that an engineering analysis is submitted to show that:
1. The capacity of existing structural elements required to resist forces is not reduced;
2. The lateral loading to existing structural elements is not increased either beyond its capacity or more than 10 percent;
3. New structural elements are detailed and connected to the existing structural elements as required by the International Building Code;
4. New or relocated nonstructural elements are detailed and connected to existing or new structural elements as required by the International Building Code; and
5. A dangerous condition as defined in this code is not created. Voluntary alterations to lateral force-resisting systems conducted in accordance with Appendix A and the referenced standards of this code shall be permitted.
All newly installed electrical equipment and wiring relating to work done in any work area shall comply with the materials and methods requirements of Chapter 7.
Exception: Electrical equipment and wiring in newly installed partitions and ceilings shall comply with all applicable requirements of NFPA 70.
Existing wiring in all work areas in Group A-1, A-2, A-5, H and I occupancies shall be upgraded to meet the materials and methods requirements of Chapter 7.
In Group R-2, R-3 and R-4 occupancies and buildings regulated by the International Residential Code, the requirements of Sections 808.3.1 through 808.3.7 shall be applicable only to work areas located within a dwelling unit.
All enclosed areas, other than closets, kitchens, basements, garages, hallways, laundry areas, utility areas, storage areas and bathrooms shall have a minimum of two duplex receptacle outlets or one duplex receptacle outlet and one ceiling or wall-type lighting outlet.
Kitchen areas shall have a minimum of two duplex receptacle outlets.
Laundry areas shall have a minimum of one duplex receptacle outlet located near the laundry equipment and installed on an independent circuit.
Newly installed receptacle outlets shall be provided with ground fault circuit interruption as required by NFPA 70.
At least one lighting outlet shall be provided in every bathroom, hallway, stairway, attached garage, and detached garage with electric power, and to illuminate outdoor entrances and exits.
At least one lighting outlet shall be provided in utility rooms and basements where such spaces are used for storage or contain equipment requiring service.
Clearance for electrical service equipment shall be provided in accordance with the NFPA 70.
All reconfigured spaces intended for occupancy and all spaces converted to habitable or occupiable space in any work area shall be provided with natural or mechanical ventilation in accordance with the International Mechanical Code.
Exception: Existing mechanical ventilation systems shall comply with the requirements of Section 809.2.
In mechanically ventilated spaces, existing mechanical ventilation systems that are altered, reconfigured, or extended shall provide not less than 5 cubic feet per minute (cfm) (0.0024 m3/s) per person of outdoor air and not less than 15 cfm (0.0071 m3/s) of ventilation air per person; or not less than the amount of ventilation air determined by the Indoor Air Quality Procedure of ASHRAE 62.
All newly introduced devices, equipment, or operations that produce airborne particulate matter, odors, fumes, vapor, combustion products, gaseous contaminants, pathogenic and allergenic organisms, and microbial contaminants in such quantities as to affect adversely or impair health or cause discomfort to occupants shall be provided with local exhaust.
Where the occupant load of the story is increased by more than 20 percent, plumbing fixtures for the story shall be provided in quantities specified in the International Plumbing Code based on the increased occupant load.

811.1 Minimum Requirements

STATE AMENDMENT
Level 2 alterations to existing buildings or structures are permitted without requiring the entire building or structure to comply with the energy requirements of the International Energy Conservation Code or International Residential Code. The alterations shall conform to the energy requirements of the International Energy Conservation Code or International Residential Code. as they relate to new construction only.
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