12-I[CE] DCMR 9.6
9.6. ALTERNATIVE COMPLIANCE PATH: SPACE-BY-SPACE METHOD
Cite as D.C. Mun. Regs. tit. 12-I[CE], § 9.6
SECTION 9 LIGHTING
9.6 ALTERNATIVE COMPLIANCE PATH: SPACE-BY-SPACE METHOD
TABLE 9.6.1
LIGHTING POWER DENSITY ALLOWANCES USING THE SPACE-BY-SPACE METHOD AND MINIMUM CONTROL REQUIREMENTS USING EITHER METHOD
Strike TABLE 9.6.1 Lighting Power Density Allowances Using the Space-by-Space Method and Minimum Control Requirements Using Either Method, in ASHRAE 90.1 and insert new Table 9.6.1 in its place in the Energy Conservation Code-Commercial Provisions to read as follows:
Informative Note: This table is divided into two sections; this first section covers space types that can be commonly found
The control functions below shall be implemented in accordance with the descriptions found in the referenced paragraphs within
Section 9.4.1.1. For each space type: (1) All REQs shall be implemented.
(2) At least one ADD1 (when present) shall be implemented. (3) At least one ADD2 (when present) shall be implemented.
in multiple building types. The second part of this table covers space types that are typically found in a single building type.
Local Control
(See Section
9.4.1.1[a])
Restricted to Manual ON (See Section
9.4.1.1[b])
Restricted to Partial Automatic ON (See Section
9.4.1.1[c])
Bilevel Lighting Control
(See Section
9.4.1.1[d])
Automatic
Daylight Responsive Controls for Sidelighting (See Section
9.4.1.1[e]6)
Automatic
Daylight Responsive Controls for Toplighting (See Section
9.4.1.1[f]6)
Automatic Partial OFF (See Section
9.4.1.1[g] [Full Off complies])
Automatic Full OFF (See Section
9.4.1.1[h])
Scheduled
Shutoff
(See Section
9.4.1.1[i])
Common Space Types1 LPD, W/ft2
RCR Threshold
a b c d e f g h i
Atrium
… that is 20 ft and
40 ft in height 0.03/ft total height NA REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Informative Note: This table is divided into two sections; this first section covers space types that can be commonly found
The control functions below shall be implemented in accordance with the descriptions found in the referenced paragraphs within
Section 9.4.1.1. For each space type: (1) All REQs shall be implemented.
(2) At least one ADD1 (when present) shall be implemented. (3) At least one ADD2 (when present) shall be implemented.
in multiple building types. The second part of this table covers space types that are typically found in a single building type.
Local Control
(See Section
9.4.1.1[a])
Restricted to Manual ON (See Section
9.4.1.1[b])
Restricted to Partial Automatic ON (See Section
9.4.1.1[c])
Bilevel Lighting Control
(See Section
9.4.1.1[d])
Automatic
Daylight Responsive Controls for Sidelighting (See Section
9.4.1.1[e]6)
Automatic
Daylight Responsive Controls for Toplighting (See Section
9.4.1.1[f]6)
Automatic Partial OFF (See Section
9.4.1.1[g] [Full Off complies])
Automatic Full OFF (See Section
9.4.1.1[h])
Scheduled
Shutoff
(See Section
9.4.1.1[i])
1. In cases where both a common space type and a building area specific space type are listed, the building area specific space type shall apply
2. In corridors, the extra lighting power density allowance is permitted when the width of the corridor is less than 8 ft and is not based on the RCR.
3. A “Facility for the Visually Impaired” is a facility that can be documented as being designed to comply with the light levels in ANSI/IES RP-28 and is licensed or will be licensed by local/state authorities for either senior long-term care, adult daycare,
senior support and/or people with special visual needs.
4. For accent lighting, see Section 9.6.2(b).
5. Sometimes referred to as a “Picking Area.”
6. Automatic daylight responsive controls are mandatory only if the requirements of the specified sections are present.
7. An additional 0.53 w/ft2 shall be allowed, provided that the additional lighting is controlled separately from the base allowance of 0.42 W/ft2. The additional 0.53 w/ft2 allowance shall not be used for any other purpose.
Informative Note: This table is divided into two sections; this first section covers space types that can be commonly found
The control functions below shall be implemented in accordance with the descriptions found in the referenced paragraphs within
Section 9.4.1.1. For each space type: (1) All REQs shall be implemented.
(2) At least one ADD1 (when present) shall be implemented. (3) At least one ADD2 (when present) shall be implemented.
in multiple building types. The second part of this table covers space types that are typically found in a single building type.
Local Control
(See Section
9.4.1.1[a])
Restricted to Manual ON (See Section
9.4.1.1[b])
Restricted to Partial Automatic ON (See Section
9.4.1.1[c])
Bilevel Lighting Control
(See Section
9.4.1.1[d])
Automatic
Daylight Responsive Controls for Sidelighting (See Section
9.4.1.1[e]6)
Automatic
Daylight Responsive Controls for Toplighting (See Section
9.4.1.1[f]6)
Automatic Partial OFF (See Section
9.4.1.1[g] [Full Off complies])
Automatic Full OFF (See Section
9.4.1.1[h])
Scheduled
Shutoff
(See Section
9.4.1.1[i])
Common Space Types1 LPD, W/ft2
RCR Threshold
a b c d e f g h i
Electrical/Mechanical Room7 0.42 6 REQ — — — REQ REQ — — —
Emergency Vehicle Garage 0.56 4 REQ ADD1 ADD1 — REQ REQ — ADD2 ADD2
Food Preparation Area 1.21 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Guest Room 0.91 6 See Section 9.4.1.3b.
Laboratory
Informative Note: This table is divided into two sections; this first section covers space types that can be commonly found
The control functions below shall be implemented in accordance with the descriptions found in the referenced paragraphs within
Section 9.4.1.1. For each space type: (1) All REQs shall be implemented.
(2) At least one ADD1 (when present) shall be implemented. (3) At least one ADD2 (when present) shall be implemented.
in multiple building types. The second part of this table covers space types that are typically found in a single building type.
Local Control
(See Section
9.4.1.1[a])
Restricted to Manual ON (See Section
9.4.1.1[b])
Restricted to Partial Automatic ON (See Section
9.4.1.1[c])
Bilevel Lighting Control
(See Section
9.4.1.1[d])
Automatic
Daylight Responsive Controls for Sidelighting (See Section
9.4.1.1[e]6)
Automatic
Daylight Responsive Controls for Toplighting (See Section
9.4.1.1[f]6)
Automatic Partial OFF (See Section
9.4.1.1[g] [Full Off complies])
Automatic Full OFF (See Section
9.4.1.1[h])
Scheduled
Shutoff
(See Section
9.4.1.1[i])
1. In cases where both a common space type and a building area specific space type are listed, the building area specific space type shall apply
2. In corridors, the extra lighting power density allowance is permitted when the width of the corridor is less than 8 ft and is not based on the RCR.
3. A “Facility for the Visually Impaired” is a facility that can be documented as being designed to comply with the light levels in ANSI/IES RP-28 and is licensed or will be licensed by local/state authorities for either senior long-term care, adult daycare,
senior support and/or people with special visual needs.
4. For accent lighting, see Section 9.6.2(b).
5. Sometimes referred to as a “Picking Area.”
6. Automatic daylight responsive controls are mandatory only if the requirements of the specified sections are present.
7. An additional 0.53 w/ft2 shall be allowed, provided that the additional lighting is controlled separately from the base allowance of 0.42 W/ft2. The additional 0.53 w/ft2 allowance shall not be used for any other purpose.
Informative Note: This table is divided into two sections; this first section covers space types that can be commonly found
The control functions below shall be implemented in accordance with the descriptions found in the referenced paragraphs within
Section 9.4.1.1. For each space type: (1) All REQs shall be implemented.
(2) At least one ADD1 (when present) shall be implemented. (3) At least one ADD2 (when present) shall be implemented.
in multiple building types. The second part of this table covers space types that are typically found in a single building type.
Local Control
(See Section
9.4.1.1[a])
Restricted to Manual ON (See Section
9.4.1.1[b])
Restricted to Partial Automatic ON (See Section
9.4.1.1[c])
Bilevel Lighting Control
(See Section
9.4.1.1[d])
Automatic
Daylight Responsive Controls for Sidelighting (See Section
9.4.1.1[e]6)
Automatic
Daylight Responsive Controls for Toplighting (See Section
9.4.1.1[f]6)
Automatic Partial OFF (See Section
9.4.1.1[g] [Full Off complies])
Automatic Full OFF (See Section
9.4.1.1[h])
Scheduled
Shutoff
(See Section
9.4.1.1[i])
Building Type Specific/Space Types1 LPD W/ft2
RCR Threshold
a b c d e f g h i
Facility for the Visually Impaired3
… in a chapel (used primarily by residents) 2.21 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in a recreation room/common living
room (and not used primarily by staff) 2.41 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Automotive (See “Vehicular
Maintenance Area”)
Convention Center— Exhibit Space
Dormitory—Living Quarters Fire Station—Sleeping Quarters Facility for the Visually Impaired 3
Gymnasium/Fitness Center
… in an exercise area 0.61 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in a playing area 1.20 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Healthcare Facility
… in an exam/treatment room 1.41 8 REQ — — REQ REQ REQ — ADD2 ADD2
… in an imaging room 1.51 6 REQ — — REQ — — — ADD2 ADD2
….in a medical supply room 0.66 6 (See “Storage Room” under “Common Space Types” for control requirements)
1. In cases where both a common space type and a building area specific space type are listed, the building area specific space type shall apply
2. In corridors, the extra lighting power density allowance is permitted when the width of the corridor is less than 8 ft and is not based on the RCR.
3. A “Facility for the Visually Impaired” is a facility that can be documented as being designed to comply with the light levels in ANSI/IES RP-28 and is licensed or will be licensed by local/state authorities for either senior long-term care, adult daycare,
senior support and/or people with special visual needs.
4. For accent lighting, see Section 9.6.2(b).
5. Sometimes referred to as a “Picking Area.”
6. Automatic daylight responsive controls are mandatory only if the requirements of the specified sections are present.
7. An additional 0.53 w/ft2 shall be allowed, provided that the additional lighting is controlled separately from the base allowance of 0.42 W/ft2. The additional 0.53 w/ft2 allowance shall not be used for any other purpose.
Informative Note: This table is divided into two sections; this first section covers space types that can be commonly found
The control functions below shall be implemented in accordance with the descriptions found in the referenced paragraphs within
Section 9.4.1.1. For each space type: (1) All REQs shall be implemented.
(2) At least one ADD1 (when present) shall be implemented. (3) At least one ADD2 (when present) shall be implemented.
in multiple building types. The second part of this table covers space types that are typically found in a single building type.
Local Control
(See Section
9.4.1.1[a])
Restricted to Manual ON (See Section
9.4.1.1[b])
Restricted to Partial Automatic ON (See Section
9.4.1.1[c])
Bilevel Lighting Control
(See Section
9.4.1.1[d])
Automatic
Daylight Responsive Controls for Sidelighting (See Section
9.4.1.1[e]6)
Automatic
Daylight Responsive Controls for Toplighting (See Section
9.4.1.1[f]6)
Automatic Partial OFF (See Section
9.4.1.1[g] [Full Off complies])
Automatic Full OFF (See Section
9.4.1.1[h])
Scheduled
Shutoff
(See Section
9.4.1.1[i])
Building Type Specific/Space Types1 LPD W/ft2
RCR Threshold
a b c d e f g h i
Library
… in a nurse’s station 0.63 6 REQ — — REQ REQ REQ — ADD2 ADD2
… in an operating room 2.48 6 REQ — — REQ — — — ADD2 ADD2
… in a patient room 0.55 6 REQ — — REQ REQ REQ — ADD2 ADD2
… in a physical therapy room 0.77 6 REQ — — REQ REQ REQ — ADD2 ADD2
… in a recovery room 1.15 6 REQ — — REQ REQ REQ — ADD2 ADD2
… in a reading area 1.06 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in the stacks 1.62 4 REQ ADD1 ADD1 REQ REQ REQ REQ ADD2 ADD2
Manufacturing Facility
… in a detailed manufacturing area 1.29 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in an equipment room 0.74 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in an extra high bay area
(>50 ft floor-to-ceiling height) 1.05 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in a high bay area
(25–50 ft floor-to-ceiling height) 1.04 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in a low bay area
(<25 ft floor-to-ceiling height) 1.01 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Museum
… in a general exhibition area 1.05 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in a restoration room 1.02 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Performing Arts Theater—
Dressing Room 0.61 6 REQ ADD1 ADD1 REQ REQ REQ — REQ —
1. In cases where both a common space type and a building area specific space type are listed, the building area specific space type shall apply
2. In corridors, the extra lighting power density allowance is permitted when the width of the corridor is less than 8 ft and is not based on the RCR.
3. A “Facility for the Visually Impaired” is a facility that can be documented as being designed to comply with the light levels in ANSI/IES RP-28 and is licensed or will be licensed by local/state authorities for either senior long-term care, adult daycare,
senior support and/or people with special visual needs.
4. For accent lighting, see Section 9.6.2(b).
5. Sometimes referred to as a “Picking Area.”
6. Automatic daylight responsive controls are mandatory only if the requirements of the specified sections are present.
7. An additional 0.53 w/ft2 shall be allowed, provided that the additional lighting is controlled separately from the base allowance of 0.42 W/ft2. The additional 0.53 w/ft2 allowance shall not be used for any other purpose.
Informative Note: This table is divided into two sections; this first section covers space types that can be commonly found
The control functions below shall be implemented in accordance with the descriptions found in the referenced paragraphs within
Section 9.4.1.1. For each space type: (1) All REQs shall be implemented.
(2) At least one ADD1 (when present) shall be implemented. (3) At least one ADD2 (when present) shall be implemented.
in multiple building types. The second part of this table covers space types that are typically found in a single building type.
Local Control
(See Section
9.4.1.1[a])
Restricted to Manual ON (See Section
9.4.1.1[b])
Restricted to Partial Automatic ON (See Section
9.4.1.1[c])
Bilevel Lighting Control
(See Section
9.4.1.1[d])
Automatic
Daylight Responsive Controls for Sidelighting (See Section
9.4.1.1[e]6)
Automatic
Daylight Responsive Controls for Toplighting (See Section
9.4.1.1[f]6)
Automatic Partial OFF (See Section
9.4.1.1[g] [Full Off complies])
Automatic Full OFF (See Section
9.4.1.1[h])
Scheduled
Shutoff
(See Section
9.4.1.1[i])
Building Type Specific/Space Types1 LPD W/ft2
RCR Threshold
a b c d e f g h i
Post Office—Sorting Area 0.94 4 REQ ADD1 ADD1 REQ REQ REQ REQ ADD2 ADD2
Religious Buildings
… in a fellowship hall 0.64 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in a worship/pulpit/choir area 1.53 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Retail Facilities
… in a dressing/fitting room 0.71 8 REQ ADD1 ADD1 REQ REQ — REQ —
… in a mall concourse 1.10 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Sports Arena—Playing Area
… for a Class I facility 3.68 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… for a Class II facility 2.40 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… for a Class III facility 1.80 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… for a Class IV facility 1.20 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Transportation Facility
… in a baggage/carousel area 0.47 4 REQ ADD1 ADD1 — REQ REQ — ADD2 ADD2
… in an airport concourse 0.32 4 REQ ADD1 ADD1 — REQ REQ — ADD2 ADD2
… at a terminal ticket counter 0.68 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Warehouse—Storage Area
…for medium to bulky,
palletized items 0.49 4
… for smaller, hand-carried items5 0.95 6
1. In cases where both a common space type and a building area specific space type are listed, the building area specific space type shall apply
2. In corridors, the extra lighting power density allowance is permitted when the width of the corridor is less than 8 ft and is not based on the RCR.
3. A “Facility for the Visually Impaired” is a facility that can be documented as being designed to comply with the light levels in ANSI/IES RP-28 and is licensed or will be licensed by local/state authorities for either senior long-term care, adult daycare,
senior support and/or people with special visual needs.
4. For accent lighting, see Section 9.6.2(b).
5. Sometimes referred to as a “Picking Area.”
6. Automatic daylight responsive controls are mandatory only if the requirements of the specified sections are present.
7. An additional 0.53 w/ft2 shall be allowed, provided that the additional lighting is controlled separately from the base allowance of 0.42 W/ft2. The additional 0.53 w/ft2 allowance shall not be used for any other purpose.
TABLE 9.6.3 Control Factors Used in Calculating Additional Interior Lighting Power Allowance
Additional Control Method
(in Addition to Mandatory Requirements)
Open
Office
Private
Office
Space Type
Conference Room, Meeting Room, Classroom (Lecture/ Training)
Retail Sales Area
Lobby, Atrium, Dining Area, Corridors/ Stairways, Gym/ Pool, Mall Concourse, Parking Garage
Manual, continuous dimming control or programmable multilevel
dimming control 0.05 0.05 0.10 0.10 0
Programmable multilevel dimming control using programmable time
scheduling 0.05 0.05 0.10 0.10 0.10
Occupancy sensors controlling the downlight component of
workstation specific luminaires with continuous dimming to off capabilities
0.25a 0 0 0 0
Occupancy sensors controlling the downlight component of workstation specific luminaires with continuous dimming to off operation, in combination with personal continuous dimming control of downlight illumination by workstation occupant
0.30a,b 0 0 0 0
Automatic continuous daylight dimming in secondary sidelighted c c c c c
areas 0.10
0.10
0.10
0.10
0.10
a. Control factor is limited to workstation-specific luminaires in partitioned single occupant work spaces contained within an open office environment (i.e. direct-indirect luminaires with separately controlled downlight and uplight components, with the downward component providing illumination to a single occupant in an open plan workstation). Within 30 minutes of the occupant leaving the space, the downward component shall continuously dim to off over a minimum of two minutes. Upon the occupant entering the space, the down- ward component shall turn on at the minimum level and continuously raise the illumination to a preset level over a minimum of 30 seconds. The uplight component of workstation specific luminaire shall comply with Section 9.4.1.1(h) (automatic full off).
b. In addition to the requirements described in footnote (b), the control shall allow the occupant to select their preferred light level via a personal computer, handheld device, or similarly accessible device located within the workstation.
c. Control factors may not be used if controls are used to satisfy exceptions to Section 5.5.4.2.3
Strike Section 9.6.2 of ASHRAE 90.1 in its entirety and insert a new Section 9.6.2 in its place in the Energy Conservation Code-Commercial Provisions to read as follows:
9.6.2 Additional Interior Lighting Power. When using the Space-by-Space Method, an increase in the interior lighting power allowance is allowed for specific lighting functions. Additional power shall be allowed only if the specified lighting is installed and automatically controlled, separately from the general lighting, to be turned off during nonbusiness hours. This additional power shall be used only for the specified luminaires and shall not be used for any other purpose unless otherwise indicated.
An increase in the interior lighting power allowance is permitted in the following cases:
a. For spaces in which lighting is specified to be installed in addition to the general lighting for the purpose of decorative appearance or for highlighting art or exhibits, provided that the additional lighting power shall not exceed 5% of the lighting power allowance across the entire project space permitted in Sections 9.5.1 or 9.6.1.
b. For lighting equipment installed in sales areas and specifically designed and directed to highlight merchandise, calculate the additional lighting power as follows:
+ (For Retail Area 2, 10% base power allowance for the sales area per Table 9.5.1 or Table 9.6.1)
+ (For Retail Area 3, 30% base power allowance for the sales area per Table 9.5.1 or Table 9.6.1)
+ (For Retail Area 4, 50% base power allowance for the sales area per Table 9.5.1 or Table 9.6.1),
Retail Area 1 = the floor area for all products not listed in Retail Areas 2, 3, or 4
Retail Area 2 = the floor area used for the sale of vehicles, sporting goods, and small electronics
Retail Area 3 = the floor area used for the sale of furniture, clothing, cosmetics, and artwork
Retail Area 4 = the floor area used for the sale of jewelry, crystal, and china
Exception: Other merchandise categories may be included in Retail Areas 2 through 4 above, provided that justification documenting the need for additional lighting power based on visual inspection, contrast, or other critical display is approved by the authority having jurisdiction.
Strike Section 9.6.3 of ASHRAE 90.1 in its entirety and insert a new Section 9.6.3 in its place to read as follows:
9.6.3 Prescriptive Controls. Building projects shall comply with the prescriptive control requirements of 9.5.2, 9.5.3, 9.5.4, and 9.5.5.
SOURCE: Final Rulemaking published at 67 DCR 6326 (May 29, 2020 – Part 2).
The District of Columbia Energy Conservation Code (2017), referred to as the “Energy Conservation Code,” consists of ANSI/ASHRAE/IES 90.1-2013, Energy Standard for Buildings Except Low-Rise Residential Buildings (ASHRAE 90.1) and substantial portions of Chapter 7 of ANSI/ASHREA/IES 189.1-2014, Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings (ASHRAE 189.1), published by the American Society of Heating, Refrigeration and Air-Conditioning Engineers (ASHRAE), and the Residential Provisions of the 2015 edition of the International Energy Conservation Code (International Energy Conservation Code), published by the International Code Council (ICC), as amended by the Energy Conservation Code Supplement of 2017 – Commercial Provisions (12-I[CE] DCMR) and the Energy Conservation Code Supplement of 2017 – Residential Provisions (12-I[RE] DCMR). The International Energy Conservation Code is copyrighted by the ICC and therefore is not republished here. However, a copy of the text may be obtained at: https://codes.iccsafe.org/public/document/IECC2015. ASHRAE 90.1 is copyrighted by ASHRAE and therefore is not republished here. However, the text of ASHRAE 90.1 may be reviewed at: https://www.ashrae.org/standards-research--technology. Portions of Chapter 7 of ASHRAE 189.1 are reprinted in the District of Columbia Energy Conservation Code Supplement by permission of ASHRAE and ICC.
… that is <20 ft in height 0.03/ft total height NA REQ ADD1 ADD1 — REQ REQ — ADD2 ADD2
… that is >40 ft in height 0. 0 + 0.02/ft total NA REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Audience Seating Area Audience Seating Area Audience Seating Area Audience Seating Area Audience Seating Area Audience Seating Area Audience Seating Area Audience Seating Area Audience Seating Area Audience Seating Area Audience Seating Area Audience Seating Area
... in an auditorium 0.63 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
... in a convention center 0.82 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in a gymnasium 0.65 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
... in a motion picture theater 1.14 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
... in a penitentiary 0.28 4 REQ ADD1 ADD1 — REQ REQ — ADD2 ADD2
... in a performing arts theater 2.43 8 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
... in a religious building 1.53 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
... in a sports arena 0.43 4 REQ ADD1 ADD1 — REQ REQ — ADD2 ADD2
… all other audience seating areas 0.43 4 REQ ADD1 ADD1 — REQ REQ — ADD2 ADD2
Banking Activity Area 1.01 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Breakroom
(See Lounge/Breakroom)
Classroom/Lecture Hall/Training Room
… in a penitentiary 1.34 4 REQ ADD1 ADD1 REQ REQ REQ — REQ —
… all other classrooms/lecture halls/
training rooms 1.24 4 REQ ADD1 ADD1 REQ REQ REQ — REQ —
Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors LPD, W/ft2 RCR Threshold a b c d e f g h i
Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors 1.10 6 REQ ADD1 ADD1 REQ REQ REQ — REQ —
Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors 0.81 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors 0.72 6 REQ ADD1 ADD1 REQ REQ REQ — REQ —
Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors 0.92 width <8 ft REQ — — — REQ REQ REQ ADD2 ADD2
Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors 0.99 width <8 ft REQ — — — REQ REQ ADD2 ADD2 ADD2
Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors 0.41 width <8 ft REQ — — — REQ REQ — ADD2 ADD2
Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors Common Space Types1
Conference/Meeting/Multipurpose
Room Confinement Cells Copy/Print Room
Corridor2
… in a facility for the visually impaired
(and not used primarily by the staff)3
… in a hospital
… in a manufacturing facility
… all other corridors 0.56 width <8 ft REQ — — — REQ REQ REQ ADD2 ADD2
Courtroom 1.46 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Computer Room
Dining Area … in a penitentiary 1.71
0.96 4
6 REQ
REQ ADD1
ADD1 ADD1
ADD1 REQ
REQ REQ
REQ REQ
REQ —
— ADD2
ADD2 ADD2
ADD2
… in a facility for
(and not us the visually impaired
ed primarily by staff)3 2.65 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in bar/lo unge or leisure dining 1.07 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in cafete ria or fast food dining 0.65 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in family dining 0.75 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… all other dining areas 0.58 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in or as a classroom 1.43 6 REQ ADD1 ADD1 REQ REQ REQ REQ ADD2 ADD2
… all other laboratories 1.71 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Laundry/Washing Area 0.57 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Loading Dock, Interior
Lobby 0.47 6 REQ ADD1 ADD1 — REQ REQ — ADD2 ADD2
… in a facility for the visually impaired
(and not used primarily by the staff)3 1.80 4 REQ — — — REQ REQ REQ ADD2 ADD2
… for an elevator 0.54 6 REQ — — — REQ REQ — ADD2 ADD2
… in a hotel 1.06 4 REQ — — — REQ REQ — ADD2 ADD2
… in a motion picture theater 0.56 4 REQ — — — REQ REQ — ADD2 ADD2
… in a performing arts theater 2.00 6 REQ — — — REQ REQ REQ ADD2 ADD2
… all other lobbies 0.85 4 REQ — — — REQ REQ REQ ADD2 ADD2
Locker Room
Lounge/Breakroom
… in a healthcare facility 0.75
0.78 6
6 REQ
REQ ADD1
ADD1 ADD1
ADD1 REQ
REQ REQ
REQ REQ
REQ —
— REQ
REQ —
—
… all other lounges/breakrooms 0.62 4 REQ ADD1 ADD1 REQ REQ REQ — REQ —
Common Space Types1 LPD, RCR a
W/ft2 Threshold Common Space Types1 LPD, RCR a
W/ft2 Threshold Common Space Types1 LPD, RCR a
W/ft2 Threshold Common Space Types1 LPD, RCR a
W/ft2 Threshold Common Space Types1 LPD, RCR a
W/ft2 Threshold b c d e f g h i
Office Office Office Office Office Office Office Office Office Office Office Office Office
… enclosed and 250 ft2 … enclosed and 250 ft2 1.05 8 REQ ADD1 ADD1 REQ REQ REQ — REQ —
… enclosed and >250 ft2 … enclosed and >250 ft2 1.05 8 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… open plan … open plan 0.93 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Parking Area, Interior Parking Area, Interior 0.19 4 See Section 9.4.1.2.
Pharmacy Area Pharmacy Area 1.68 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Restroom Restroom
… in a facility for the visually impaired
(and not used primarily by the staff)3 … in a facility for the visually impaired
(and not used primarily by the staff)3 1.21 8 REQ — — — REQ REQ — REQ —
… all other restrooms … all other restrooms 0.98 8 REQ — — — REQ REQ — REQ —
Sales Area4 Sales Area4 1.36 6 REQ ADD1 ADD1 REQ — REQ — ADD2 ADD2
Seating Area, General Seating Area, General 0.54 4 REQ ADD1 ADD1 — REQ REQ — ADD2 ADD2
Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway. Stairway The space containing the stairway shall determine the LPD and control requirements for the stairway.
Stairwell 0.69 10 REQ — — REQ REQ REQ REQ ADD2 ADD2
Storage Room … <50 ft2 1.24 6 REQ — — — — — — ADD2 ADD2
… 50 ft2 and  1000 ft2 0.63 6 REQ ADD1 ADD1 — REQ REQ — REQ —
… all other storage rooms 0.63 6 REQ ADD1 ADD1 — REQ REQ REQ ADD2 ADD2
Vehicular Maintenance Area Vehicular Maintenance Area 0.67 4 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
Workshop Workshop 1.59 6 REQ ADD1 ADD1 REQ REQ REQ — ADD2 ADD2
… in a nursery 0.74 6 REQ — — REQ REQ REQ — ADD2 ADD2