Section 140.6 — California Energy Code (Title 24, Part 6)

PRESCRIPTIVE REQUIREMENTS

FOR INDOOR LIGHTING

A building complies with this section if:

i. The calculation of adjusted indoor lighting power of all

proposed building areas combined, calculated under Subsection (a) is no greater than the calculation of allowed indoor lighting power, specific methodologies calculated under Subsection (c); and

ii. The calculation of allowed indoor lighting power, gen eral rules comply with Subsection (b).

The prescriptive limits on indoor lighting power are the smaller of the adjusted and allowed indoor lighting power values determined in accordance with Item i.

(a) Calculation of adjusted indoor lighting power. The adjusted indoor lighting power of all proposed building areas is the total watts of all planned permanent and portable lighting systems in all areas of the proposed building; subject to the applicable adjustments under Subdivisions 1 through 4 of this subsection and the requirements of Subdivision 4 of this subsection.

Exception to Section 140.6(a): Up to 0.3 watts per square foot of portable lighting for office areas shall not be required to be included in the calculation of actual indoor lighting power.

Two interlocked lighting systems. No more than two lighting systems may be used for an area, and if there are two they must be interlocked. Where there are two interlocked lighting systems, the watts of the lower wattage system may be excluded from the adjusted indoor lighting power density if:

A. An installation certificate detailing compliance

with Section 140.6(a)1 is submitted in accordance with Sections 10-103 and 130.4; and

B. The area or areas served by the interlocking sys tems is an auditorium, a convention center, a conference room, a multipurpose room or a theater; and

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tracks shall be within the applicable area in order to qualify for a PAF.

E. Only one PAF from Table 140.6-A may be used

for each qualifying luminaire. PAFs shall not be added together unless allowed in Table 140.6-A.

F. Only lighting wattage directly controlled in

accordance with Section 140.6(a)2 shall be used to reduce the installed watts as allowed by Section 140.6(a)2 for calculating the Adjusted Indoor Lighting Power. If only a portion of the wattage in a luminaire is controlled in accordance with Section 140.6(a)2, then only that portion of controlled wattage may be reduced in calculating adjusted indoor lighting power.

G. Lighting controls used to qualify for a PAF shall

be designed and installed in addition to manual, multilevel, and automatic lighting controls required in Section 130.1, and in addition to any other lighting controls required by any provision of Part 6. PAFs shall not be available for lighting controls required by Part 6.

H. To qualify for the PAF for continuous daylight

dimming plus OFF control, the daylight control and controlled luminaires shall comply with Section 130.1(d), 130.4(a)3 and 130.4(a)7, and the daylight control shall be continuous dimming and shall additionally turn lights completely OFF when the daylight available in the daylit zone is greater than 150 percent of the illuminance received from the general lighting system at full power. The PAF shall apply to the luminaires in the primary sidelit daylit zone, secondary sidelit daylit zone and skylit daylit zone.

I. To qualify for the PAF for an occupant sensing

control controlling the general lighting in large office areas above workstations, in accordance with Table 140.6-A, the following requirements shall be met:

i. The office area shall be greater than 250

square feet; and

ii. This PAF shall be available only in office

areas which contain workstations; and

iii. Controlled luminaires shall only be those

that provide general lighting directly above the controlled area, or furniture mounted luminaires that comply with Section 140.6(a)2 and provide general lighting directly above the controlled area; and

iv. Qualifying luminaires shall be controlled

by occupant sensing controls that meet all of the following requirements, as applicable: a. Infrared sensors shall be equipped by the

manufacturer, of fitted in the field by the installer, with lenses or shrouds to prevent them from being triggered by movement outside of the controlled area.

b. Ultrasonic sensors shall be tuned to

reduce their sensitivity to prevent them from being triggered by movements outside of the controlled area.

c. All other sensors shall be installed and

adjusted as necessary to prevent them from being triggered by movements outside of the controlled area.

J. To qualify for the PAF for an Institutional Tuning

in Table 140.6-A, the tuned lighting system shall comply with all of the following requirements:

i. The lighting controls shall limit the maxi mum output or maximum power draw of the controlled lighting to 85 percent or less of full light output or full power draw; and

ii. The means of setting the limit is accessible

only to authorized personnel; and

iii. The setting of the limit is verified by the

acceptance test required by Section 130.4(a)7; and

iv. The construction documents specify which

lighting systems shall have their maximum light output or maximum power draw set to no greater than 85 percent of full light output or full power draw.

K. To qualify for the PAF for a demand responsive

control in Table 140.6-A, the general lighting wattage receiving the PAF shall not be within the scope of Section 110.12(c) and a demand responsive control shall meet all of the following requirements:

i. The controlled lighting shall be capable of

being automatically reduced in response to a demand response signal; and

ii. General lighting shall be reduced in a man ner consistent with uniform level of illumination requirements in Table 130.1-A.

L. To qualify for the PAFs for clerestory fenestra tion, horizontal slats, or light shelves in Table 140.6-A, the daylighting design shall meet the requirements in Section 140.3(d). The PAFs shall only apply to lighting in a primary or secondary sidelit daylit zone where continuous dimming daylighting controls meeting the requirements of Section 130.1(d) are installed.

Lighting wattage excluded. The watts of the following indoor lighting applications may be excluded from adjusted indoor lighting power. (Indoor lighting not listed below shall comply with all applicable nonresidential indoor lighting requirements in Part 6):

A. In theme parks: lighting for themes and special

effects;

B. Studio lighting for film or photography, provided

that these lighting systems are in addition to and

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separately switched from a general lighting system;

C. Lighting for dance floors, lighting for theatrical

and other live performances, and theatrical lighting used for religious worship, provided that these lighting systems are additions to a general lighting system and are separately controlled by a multiscene or theatrical cross-fade control station accessible only to authorized operators;

Lighting intended for makeup, hair, and cos - tume preparation in performing arts facility dressing rooms, provided that the lighting is separately switched from the general lighting system, switched independently at each dressing station, and is controlled with a vacancy sensor.

D. In civic facilities, transportation facilities, con vention centers and hotel function areas: lighting for temporary exhibits, if the lighting is in addition to a general lighting system, and is separately controlled from a panel accessible only to authorized operators;

E. Lighting installed by the manufacturer in walk-in

coolers or freezers, vending machines, food preparation equipment, and scientific and industrial equipment;

F. Examination and surgical lights, low ambient

night lights and lighting integral to medical equipment, provided that these lighting systems are additions to and separately switched from a general lighting system;

G. Lighting for plant growth or maintenance in non CEH spaces, if it is controlled by a multilevel astronomical time-switch control that complies with the applicable provisions of Section 110.9;

H. Lighting equipment that is for sale;

I. Lighting demonstration equipment in lighting

education facilities;

J. Lighting that is required for exit signs subject to

the CBC. Exit signs shall meet the requirements of the Appliance Efficiency Regulations; K. Exitway or egress illumination that is normally

off and that is subject to the CBC;

L. In hotel/motel buildings, lighting in guest rooms

(lighting in hotel/motel guestrooms shall comply with Section 130.0(b). (Indoor lighting not in guestrooms shall comply with all applicable nonresidential lighting requirements in Part 6.)

M.Reserved.

N. Temporary lighting systems.

O. Lighting in occupancy group U buildings less

than 1,000 square feet;

P. Lighting in unconditioned agricultural buildings

less than 2,500 square feet;

Q. Lighting systems in qualified historic buildings,

as defined in the California Historical Building Code (Title 24, Part 8), are exempt from the lighting power density allowances, if they consist solely of historic lighting components or replicas of historic lighting components. If lighting systems in qualified buildings contain some historic lighting components or replicas of historic components, combined with other lighting components, only those historic or historic replica components are exempt. All other lighting systems in qualified historic buildings shall comply with the lighting power density allowances;

R. Lighting in nonresidential parking garages for

seven or less vehicles: Lighting in nonresidential parking garages for seven or less vehicles shall comply with the applicable residential parking garage provisions of Section 150.0(k).

S. Lighting for signs: Lighting for signs shall com ply with Section 140.8.

T. Lighting in refrigerated cases less than 3,000

square feet. (Lighting in refrigerated cases less than 3,000 square feet shall comply with the Title 20 Appliance Efficiency Regulations).

U. Lighting in elevators where the lighting meets the

requirements in Section 120.6(f).

V. Lighting connected to a Life Safety Branch or

Critical Branch, as specified in Section 517 of the California Electrical Code.

W.Horticultural lighting in CEH spaces (indoor

growing and greenhouses) complying with Section 120.6(h). 4. Luminaire classification and power adjustment.

A. Luminaire classification and power shall be

determined in accordance with Section 130.0(c).

B. Small aperture tunable-white and dim-to-warm

luminaires lighting power adjustment. For qualifying small aperture tunable-white and dim-towarm LED luminaires, the adjusted indoor lighting power of these luminaires shall be calculated by multiplying their maximum rated wattage by 0.80. Qualifying luminaires shall meet all of the following:

i. Small aperture. Qualifying luminaires

with a luminaire aperture length longer than 18 inches shall have a luminaire aperture no wider than four inches. Qualifying luminaires with a luminaire aperture length of 18 inches or less shall have a luminaire aperture no wider than eight inches.

ii. Color changing. qualifying tunable-white

luminaires shall be capable of a color change greater than or equal to 2,000 Kel

NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—PERFORMANCE AND PRESCRIPTIVE COMPLIANCE APPROACHES FOR ACHIEVING ENERGY EFFICIENCY

vin correlated color temperature (CCT). Qualifying dim-to-warm luminaires shall be capable of color change greater than or equal to 500 Kelvin CCT.

iii. Controls. Qualifying luminaires shall be

connected to controls that allows color changing of the luminaires.

C. Tailored method display lighting mounting

height lighting power adjustment. For wall display luminaires or floor display luminaires meeting Tailored Method Section 140.6(c)3G and H and where the bottom of luminaires are 10 feet 7 inches and greater above the finished floor, the adjusted indoor lighting power of these luminaires shall be calculated by multiplying their maximum rated wattage and the appropriated mounting height adjustment factor from Table 140.6-E. Luminaire mounting height is the distance from the finished floor to the bottom of the luminaire. General lighting shall not qualify for a mounting height multiplier. (b) Calculation of allowed indoor lighting power: gen- eral rules.

The allowed indoor lighting power allotment for conditioned areas shall be calculated separately from the allowed lighting power allotment for unconditioned areas. Each allotment is applicable solely to the area to which it applies, and there shall be no trade-offs between conditioned and unconditioned area allotments.
Allowed indoor lighting power allotment shall be calculated separately from the allowed outdoor lighting power allotment. Each allotment is applicable solely to the area to which it applies, and there shall be no tradeoffs between the separate indoor and outdoor allotments.
The allowed indoor lighting power density allotment for general lighting shall be calculated as follows: A. The complete building method, as described in

Section 140.6(c)1, shall be used only for an entire building, except as permitted by Section 140.6(c)1. As described more fully in Section 140.6(c)1, and subject to the adjustments listed there, the allowed indoor lighting power allotment for general lighting for the entire building shall be calculated as follows:

i. For a conditioned building, the product of the

square feet of conditioned space of the building times the applicable allotment of watts per square foot described in Table 140.6-B.

ii. For an unconditioned building, the product of the

square foot of unconditioned space of the building times the applicable allotment of watts per square feet described in Table 140.6-B. B. The area category method, as described in Section

140.6(c)2, shall be used either by itself for all areas in the building, or when some areas in the building

use the tailored method described in Section 140.6(c)3. Under the area category method (either by itself or in conjunction with the tailored method), as described more fully in Section 140.6(c)2, and subject to the adjustments listed there, the allowed indoor lighting power allotment for general lighting shall be calculated for each area in the building as follows:

i. For conditioned areas, by multiplying the condi tioned square feet of the area times the applicable allotment of watts per square foot for the area shown in Table 140.6-C (or Table 140.6-D if the tailored method is used for that area).

ii. For unconditioned areas, by multiplying the

unconditioned square feet of the area times the applicable allotment of watts per square foot for the area shown in Table 140.6-C (or Table 140.6D if the tailored method is used for that area).

The allowed indoor lighting power allotment for general lighting for one area for which the area category method was used may be increased up to the amount that the allowed indoor lighting power allotment for general lighting for another area using the area category method or tailored method is decreased, except that such increases and decreases shall not be made between conditioned and unconditioned space. C. The tailored method, as described in Section

140.6(c)3, shall be used either by itself for all areas in the building, or when some areas in the building use the area category method described in Section 140.6(c)2. Under the tailored method (either by itself or in conjunction with the area category method) as described more fully in Section 140.6(c)3, and subject to the adjustments listed there, allowed indoor lighting power allotment for general lighting shall be calculated for each area in the building as follows:

i. For conditioned areas, by multiplying the condi tioned square feet of the area times the applicable allotment of watts per square foot for the area shown in Table 140.6-D (or Table 140.6-C if the area category method is used for that area);

ii. For unconditioned areas, by multiplying the

unconditioned square feet of the area times the applicable allotment of watts per square foot for the area shown in Table 140.6-D (or Table 140.6C if the area category method is used for that area);

The allowed indoor lighting power allotment for general lighting for one area for which the tailored method was used may be increased up to the amount that the allowed indoor power lighting for general lighting for another area is decreased, but only if the tailored method or area category method was used for the other area, except that such increases and decreases shall not be made between conditioned and unconditioned space.

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D. If the area category method is used for an area, the

tailored method may not be used for that area. If the tailored method is used for an area, the area category method may not be used for that area.

Allowed indoor lighting power allotments for all lighting power allotments other than general lighting shall be restricted as follows: A. When using the area category method, allowed

indoor lighting power allotments for specialized task work; precision commercial and industrial work; white board or chalk board; accent, display and feature; decorative; or videoconferencing studio; may not be increased as a result of, or otherwise traded off against, decreasing any other allotment; and

B. When using the tailored method, allowed indoor

lighting power allotments for wall display; floor display and task; decorative/special effect; or very valuable display case; may not be increased, or otherwise traded between any of the separate allotments.

(c) Calculation of allowed indoor lighting power: spe- cific methodologies. The allowed indoor lighting power for each building type, or each primary function area shall be calculated using only one of the methods in Subsection 1, 2 or 3 below as applicable.

Complete building method. Requirements for using the complete building method include all of the following: A. The complete building method shall be used only for

building types, as defined in Section 100.1, that are specifically listed in Table 140.6-B. (For example, retail and wholesale stores, hotel/motel, and highrise residential buildings shall not use this method.)

B. The complete building method shall be used only on

projects involving:

i. Entire buildings with one type of use occupancy;

ii. Mixed occupancy buildings where one type of

use makes up at least 90 percent of the entire building (in which case, when applying the complete building method, it shall be assumed that the primary use is 100 percent of the building); or

iii. A tenant space where one type of use makes up at

least 90 percent of the entire tenant space (in which case, when applying the complete building method, it shall be assumed that the primary use is 100 percent of the tenant space). C. The complete building method shall be used only

when the applicant is applying for a lighting permit and submits plans and specifications for the entire building or the entire tenant space.

use portion of the building shall each separately use the Complete Building Method.

Area category method. Requirements for using the area category method include all of the following:

A. The area category method shall be used only for pri mary function areas, as defined in Section 100.1, that are listed in Table 140.6-C. For primary function areas not listed, selection of a reasonably equivalent type shall be permitted.

B. Primary function areas in Table 140.6-C shall not

apply to a complete building. Each primary function area shall be determined as a separate area.

C. For purposes of compliance with Section 140.6(c)2,

an “area” shall be defined as all contiguous areas that accommodate or are associated with a single primary function area listed in Table 146.0-C.

D. Where areas are bounded or separated by interior

partitions, the floor area occupied by those interior partitions may be included in primary function area.

E. If at the time of permitting for a newly constructed

building, a tenant is not identified for a multitenant area, a maximum of 0.4 watts per square foot shall be allowed for the lighting in each area in which a tenant has not been identified. The area shall be classified as unleased tenant area.

F. Under the area category method, the allowed indoor

lighting power for each primary function area is the lighting power density value in Table 140.6-C times the square feet of the primary function area. The total allowed indoor lighting power density for the building is the sum of all allowed indoor lighting powers densities for all areas in the building.

G. In addition to the allowed indoor lighting power cal culated according to Sections 140.6(c)2 A through F, the building may add additional lighting power allowances for qualifying lighting systems as specified in the Qualifying Lighting Systems column in Table 140.6-C under the following conditions:

i. Only primary function areas having a lighting

systems as specified in the Qualifying Lighting Systems column in Table 140.6-C and in accordance with the corresponding footnote of the table shall qualify for the additional lighting power allowances; and.

ii. The additional lighting power allowances shall

be used only if the plans clearly identify all applicable task areas and the lighting equipment designed to illuminate these tasks; and

iii. Tasks that are performed less than two hours

per day or poor quality tasks that can be improved are not eligible for the additional lighting power allowances; and

iv. The additional lighting power allowances

shall not utilize any type of luminaires that are used for general lighting in the building; and

D. Under the complete building method, the allowed

indoor lighting power allotment is the lighting power density value times the floor area of the entire building.

E. For buildings including a parking garage plus

another type of use listed in Table 140.6-B, the parking garage portion of the building and other type of

NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—PERFORMANCE AND PRESCRIPTIVE COMPLIANCE APPROACHES FOR ACHIEVING ENERGY EFFICIENCY

partitions may be included in a primary function area.

E. In addition to the allowed indoor lighting power

allotments for general lighting calculated according to Sections 140.6(c)3F, as applicable, the building may add additional lighting power allowances for wall display lighting, floor display lighting and task lighting, decorative/special effects lighting, and very valuable display cases lighting according to Sections 140.6(c)3G through J.

F. Determine allowed indoor lighting power allotments

for general lighting for primary function areas listed in Table 140.6-D as follows:

v. The additional lighting power allowances

shall not be used when using the complete building method, or when the tailored method used for any area in the building; and

vi. The additional lighting power allowed is the

smaller of:

a. the lighting power density listed in the

“Allowed Additional Lighting LPD” column in Table 140.6-C, times the square feet of the primary function, or

b. the adjusted indoor lighting power of the

applicable lighting; and

vii. In addition to meeting Sections 140.6(c)2Gi

through vi, additional lighting power for videoconferencing as specified in Table 140.6-C shall be allowed in a videoconferencing studio, as defined in Section 100.1, provided the following conditions are met:

a. A completed and signed installation cer tificate is prepared and submitted in accordance with Section 130.4(b), specifically detailing compliance with the applicable requirements of Section 140.6(c)2Gvii; and b. The videoconferencing studio is a room

with permanently installed videoconferencing cameras, audio equipment, and playback equipment for both audiobased and video-based two-way communication between local and remote sites; and c. General lighting is switched in accor dance with Table 130.1-A; and d. Wall wash lighting is separately switched from the general lighting system; and e. All of the lighting in the studio, including

general lighting and additional lighting power allowed by Section 140.6(c)2Gvii is controlled by a multiscene programmable control system (also known as a scene preset control system).

i. Use the General Illumination Level (Lux)

listed in Column 2 of Table 140.6-D to determine the allowed general lighting power density allotments for the area.

ii. Determine the room cavity ratio (RCR) for the

area. The RCR shall be calculated according to the applicable equation in Table 140.6-F.

iii. Find the allowed general lighting power den sity allotments in Table 140.6-G that is applicable to the general illuminance level (Lux) from Column 2 of Table 140.6-D (as described in Item i) and the RCR determined in accordance with Table 140.6-F (as described in Item ii).

iv. Determine the square feet of the area in accor dance with Section 140.6(c)3C and D.

v. Multiply the allowed lighting power density

i. Floor displays shall not qualify for wall dis play allowances.

ii. Qualifying wall lighting shall:

allotment, as determined in accordance with Item iii by the square feet of each primary function area, as determined in accordance with Item iv. The product is the allowed indoor lighting power allotment for general lighting for the area. G. Determine additional allowed power for wall dis

play lighting according to column 3 of Table 140.6D for each primary function area as follows:

Tailored method. Requirements for using the tailored method include all of the following: A. The tailored method shall be used only for primary

function areas listed in Table 140.6-D, as defined in Section 100.1.

B. Allowed indoor lighting power allotments for gen eral lighting shall be determined according to Section 140.6(c)3F, as applicable.

C. For compliance with Section 140.6(c)3, an “area”

shall be defined as all contiguous areas that accommodate or are associated with a single primary function area listed in Table 140.6-D.

D. Where areas are bounded or separated by interior

partitions, the floor area occupied by those interior

a. Be mounted within 10 feet of the wall hav ing the wall display. When track lighting is used for wall display, and where portions of that lighting track are more than 10 feet from the wall and other portions are within 10 feet of the wall, portions of track more than 10 feet from the wall shall not be used for the wall display allowance. b. Be a lighting system type appropriate for

wall lighting. Lighting systems appropriate for wall lighting are lighting track adjacent to the wall, wall-washer luminaires, luminaires behind a wall valance or wall cove, or accent light. (Accent luminaires are

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adjustable or fixed luminaires with PAR, R, MR, AR or luminaires providing directional display light.)

iii.Additional allowed power for wall display

lighting is available only for lighting that illuminates walls having wall displays. The length of display walls shall include the length of the perimeter walls, including but not limited to closable openings and permanent full height interior partitions. Permanent full height interior partitions are those that (I) extend from the floor to within 2 feet of the ceiling or are taller than 10 feet and (II) are permanently anchored to the floor.

iv. For wall display lighting where the bottom of

the luminaire is greater than 10 feet 6 inches above the finished floor, the mounting height adjustment factor from Table 140.6-E can be used to adjust the installed luminaire wattage as specified in Section 140.6(a)4C.

v. The allowed power for wall display lighting

shall be the smaller of:

a. the “wall display lighting power density”

determined in accordance with Table 140.6D, multiplied by the wall display lengths determined in accordance with Item iii; and

b. The adjusted indoor lighting power used

for the wall display lighting systems.

vi. Lighting internal to display cases that are

attached to a wall or directly adjacent to a wall are counted as wall display lighting as specified in Section 140.6(c)3G. All other lighting internal to display cases are counted as floor display lighting as specified in Section 140.6(c)3H, or as very valuable display case lighting as specified in Section 140.6(c)3J.

H. Determine additional allowed power for floor dis play lighting and task lighting as follows:

i. Displays that are installed against a wall shall

not qualify for the floor display lighting power allowances.

ii. Lighting internal to display cases that are not

attached to a wall and not directly adjacent to a wall shall be counted as floor display lighting in accordance with Section 140.6(c)3H; or very valuable display case lighting in accordance with Section 140.6(c)3J.

iii. Additional allowed power for floor display

lighting, and additional allowed power for task lighting, may be used by qualifying floor display lighting systems, qualifying task lighting systems, or a combination of both. For floor areas qualifying for both floor display and task lighting power allowances, the additional allowed power shall be used only once for the same floor area, so that the allowance shall not be additive.

iv. Qualifying floor display lighting shall:

a. Be mounted no closer than 2 feet to a wall. b. Consist of only (I) directional lamp types,

such as PAR, R, MR, AR; or (II) luminaires providing directional display light. c. If track lighting is used, shall be only track

heads that are classified as direction lighting types. v. Qualifying task lighting shall:

a. Be located immediately adjacent to and

capable of illuminating the task for which it is installed. b. Be of a type different from the general

lighting system. c. Be separately switched from the general

lighting system. vi. If there are illuminated floor displays, floor

display lighting power shall be used only if allowed by Column 4 of Table 140.6-D. vii. The square footage of floor display or the

square footage of task areas shall be determined in accordance with Section 140.6(c)3C and D, except that any floor area designed to not have floor displays or tasks, such as floor areas designated as a path of egress, shall not be included for the floor display allowance. viii. For floor display lighting where the bottom of

the luminaire is greater than 10.6 feet above the finished floor, multiply the floor display installed watts by the appropriate mounting height adjustment factor from Table 140.6-E to calculate the Adjusted Indoor Lighting Power as specified in Section 140.6(a)4C. ix. The allowed power for floor display lighting

for each applicable area shall be the smaller of: a. the allowed floor display and task lighting

power determined in accordance with Section 140.6(c)3Hvi multiplied by the floor square footage determined in accordance with Section 140.6(c)3Hvii; and b. The Adjusted Indoor Lighting Power used

for the floor display lighting systems. I. Determine additional allowed power for decorative/

special effects lighting as follows:

i. Qualifying decorative lighting includes lumi naires such as chandeliers, sconces, lanterns, neon and cold cathode, light emitting diodes, theatrical projectors, moving lights and light color panels, when any of those lights are used in a decorative manner that does not serve as display lighting or general lighting.

ii. Additional lighting power for decorative/spe cial effects lighting shall be used only if allowed by Column 5 of Table 140.6-D.

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iii. Additional lighting power for decorative/spe cial effects lighting shall be used only in areas having decorative/special effects lighting. The square footage of the floor area shall be determined in accordance with Section 140.6(c)3C and D, and it shall not include floor areas not having decorative/special effects lighting.

iv. The additional allowed power for decorative/

special effects lighting for each applicable area shall be the smaller of:

a. The product of the allowed decorative/spe cial effects lighting power determined in accordance with Section 140.6(c)3Iii, multiplied by the floor square footage determined in accordance with Section 140.6(c)3Iiii; and

b. The adjusted indoor lighting power of

crystal, precious stones, silver, small art objects and artifacts, and/or valuable collections the display of which involves customer inspection of very fine detail from outside of a locked case.

iii. Qualifying lighting includes internal display

case lighting or external lighting employing highly directional luminaires specifically designed to illuminate the case or inspection area without spill light, and shall not be fluorescent lighting unless installed inside of a display case.

iv. If there is qualifying very valuable display case

lighting in accordance with Section 140.6(c)3Jii, the smallest of the following separate lighting power for display cases presenting very valuable display items is permitted:

a. The product of the area of the primary

function and 0.50 watt per square foot; or

b. The product of the area of the display case

and 7 watts per square foot; or

c. The adjusted indoor lighting power of

lighting for very valuable displays. Note: Authority: Sections 25213, 25218, 25218.5, 25402 and 25402.1, Public Resources Code. Reference: Sections 25007, 25008, 25218.5, 25310, 25402, 25402.1, 25402.4, 25402.5, 25402.8, and 25943, Public Resources Code.

allowed decorative/special effects lighting. J. Determine additional allowed power for very valu

able display case lighting as follows:

i. Additional allowed power for very valuable

display case lighting shall be available only for display cases in appropriate function areas in retail merchandise sales, museum and religious worship.

ii. To qualify for additional allowed power for

very valuable display case lighting, a case shall contain jewelry, coins, fine china, fine

TABLE 140.6-A¶

LIGHTING POWER ADJUSTMENT FACTORS (PAF)

TYPE OF CONTROL	TYPE OF AREA	FACTOR
a. To qualify for any of the power adjustment factors in this table, the installation shall comply with the applicable requirements in Section 140.6(a)2. b. Only one PAF may be used for each qualifying luminaire unless combined below. c. Lighting controls that are required for compliance with Part 6 shall not be eligible for a PAF.
1. Daylight Continuous Dimming plus OFF Control	Luminaires in skylit daylit zone or primary sidelit daylit zone or secondary sidelit daylit zone	Luminaires in skylit daylit zone or primary sidelit daylit zone or secondary sidelit daylit zone	0.10
2. Occupant sensing controls in offices larger than 250 square feet	One sensor controlling an area that is:	No larger than 125 square feet	0.30
2. Occupant sensing controls in offices larger than 250 square feet	One sensor controlling an area that is:	From 126 to 250 square feet	0.20
3. Institutional Tuning	Luminaires in non-daylit areas: Luminaires that qualify for other PAFs in this table may also qualify for this tuning PAF.	Luminaires in non-daylit areas: Luminaires that qualify for other PAFs in this table may also qualify for this tuning PAF.	0.10
3. Institutional Tuning	Luminaires in daylit areas: Luminaires that qualify for other PAFs in this table may also qualify for this tuning PAF.	Luminaires in daylit areas: Luminaires that qualify for other PAFs in this table may also qualify for this tuning PAF.	0.05
4. Demand responsive control	General lighting luminaires not in the scope of Section 110.12(c). Luminaires that qualify for other PAFs in this table may also qualify for this demand responsive control PAF.	General lighting luminaires not in the scope of Section 110.12(c). Luminaires that qualify for other PAFs in this table may also qualify for this demand responsive control PAF.	0.05
5. Clerestory Fenestration	Luminaires in daylit areas adjacent to the clerestory. Luminaires that qualify for daylight dimming plus OFF control may also qualify for this PAF.	Luminaires in daylit areas adjacent to the clerestory. Luminaires that qualify for daylight dimming plus OFF control may also qualify for this PAF.	0.05
6. Horizontal Slats	Luminaires in daylit areas adjacent to vertical fenestration with interior or exterior hori- zontal slats. Luminaires that qualify for daylight dimming plus OFF control may also qualify for this PAF.	Luminaires in daylit areas adjacent to vertical fenestration with interior or exterior hori- zontal slats. Luminaires that qualify for daylight dimming plus OFF control may also qualify for this PAF.	0.05
7.Light Shelves	Luminaires in daylit areas adjacent to clerestory fenestration with interior or exterior light shelves. This PAF may be combined with the PAF for clerestory fenestration. Luminaires that qualify for daylight dimming plus OFF control may also qualify for this PAF	Luminaires in daylit areas adjacent to clerestory fenestration with interior or exterior light shelves. This PAF may be combined with the PAF for clerestory fenestration. Luminaires that qualify for daylight dimming plus OFF control may also qualify for this PAF	0.10

136 2022 CALIFORNIA ENERGY CODE

NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—PERFORMANCE AND PRESCRIPTIVE COMPLIANCE APPROACHES FOR

ACHIEVING ENERGY EFFICIENCY

Exceptions & meaning →

TABLE 140.6-B¶

COMPLETE BUILDING METHOD LIGHTING POWER DENSITY VALUES

TYPE OF BUILDING	ALLOWED LIGHTING POWER DENSITY (WATTS PER SQUARE FOOT)
Assembly building	0.65
Bank or financial institution building	0.65
Grocery store building	0.90
Gymnasium building	0.60
Healthcare facility	0.90
Industrial/manufacturing facility building	0.60
Library building	0.70
Motion picture theater building	0.60
Museum building	0.65
Office building	0.60
Parking garage building	0.13
Performing arts theater building	0.75
Religious facility building	0.70
Restaurant building	0.65
Retail store building	0.90
School building	0.60
Sports arena building	0.75
All other buildings	0.40

NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—PERFORMANCE AND PRESCRIPTIVE COMPLIANCE APPROACHES FOR ACHIEVING ENERGY EFFICIENCY

Exceptions & meaning →

TABLE 140.6-C¶

AREA CATEGORY METHOD—LIGHTING POWER DENSITY VALUES (WATTS/FT²)

PRIMARY FUNCTION AREA		ALLOWED LIGHTING POWER DENSITY FOR GENERAL LIGHTING (W/ft2)	ADDITIONAL LIGHTING POWER1
PRIMARY FUNCTION AREA	PRIMARY FUNCTION AREA	ALLOWED LIGHTING POWER DENSITY FOR GENERAL LIGHTING (W/ft2)	Qualified Lighting Systems	Additional Allowance (W/ft², unless noted otherwise)
Aging Eye/Low-Vision11	Corridor Area	0.70	Decorative/display	0.30
Aging Eye/Low-Vision11	Dining	0.80	Decorative/display	0.30
Aging Eye/Low-Vision11	Dining	0.80	Tunable white or dim-to-warm10	0.10
Aging Eye/Low-Vision11	Lobby, Main Entry	0.85	Decorative/display	0.30
Aging Eye/Low-Vision11	Lobby, Main Entry	0.85	Transition lighting OFF at night12	0.95
Aging Eye/Low-Vision11	Lobby, Main Entry	0.85	Tunable white or dim-to-warm10	0.10
Aging Eye/Low-Vision11	Lounge/Waiting Area	0.80	Decorative/display	0.30
Aging Eye/Low-Vision11	Lounge/Waiting Area	0.80	Tunable white or dim-to-warm10	0.10
Aging Eye/Low-Vision11	Multipurpose Room	0.85	Decorative/display	0.30
Aging Eye/Low-Vision11	Multipurpose Room	0.85	Tunable white or dim-to-warm10	0.10
Aging Eye/Low-Vision11	Religious Worship Area	1.00	Decorative/display	0.30
Aging Eye/Low-Vision11	Religious Worship Area	1.00	Tunable white or dim-to-warm10	0.10
Aging Eye/Low-Vision11	Restroom	1.00	Decorative/display	0.20
Aging Eye/Low-Vision11	Stairwell	0.80	Decorative/display	0.30
Audience Seating Area	Audience Seating Area	0.50	Decorative/display	0.25
Auditorium Area	Auditorium Area	0.70	Decorative/display	0.45
Auto Repair / Maintenance Area	Auto Repair / Maintenance Area	0.55	Detailed task work7	0.20
Barber, Beauty Salon, Spa Area	Barber, Beauty Salon, Spa Area	0.70	Detailed task work7	0.30
Barber, Beauty Salon, Spa Area	Barber, Beauty Salon, Spa Area	0.70	Decorative/display	0.25
Civic Meeting Place Area	Civic Meeting Place Area	0.90	Decorative/display	0.25
Classroom, Lecture, Training, Vocational Area	Classroom, Lecture, Training, Vocational Area	0.60	White or chalk board1	7 W/ft
Concourse and Atrium Area	Concourse and Atrium Area	0.60	Decorative/display	0.25
Convention, Conference, Multipurpose and Meeting Area	Convention, Conference, Multipurpose and Meeting Area	0.75	Decorative/display	0.25
Copy Room	Copy Room	0.50	—	—
Corridor Area	Corridor Area	0.40	Decorative/display	0.25
Dining Area	Bar/Lounge and Fine Dining	0.45	Decorative/display	0.35
Dining Area	Cafeteria/Fast Food	0.45	0.45	0.25
Dining Area	Family and Leisure	0.40	0.40	0.25
Electrical, Mechanical, Telephone Rooms	Electrical, Mechanical, Telephone Rooms	0.40	Detailed task work7	0.20
Exercise/Fitness Center and Gymnasium Area	Exercise/Fitness Center and Gymnasium Area	0.50	—	—
Financial Transaction Area	Financial Transaction Area	0.70	Decorative/display	0.25
Healthcare Facility and Hospital	Exam/Treatment Room	1.15	—	—
Healthcare Facility and Hospital	Imaging Room	0.60	Decorative/display	0.20
Healthcare Facility and Hospital	Imaging Room	0.60	Tunable white or dim-to-warm10	0.10
Healthcare Facility and Hospital	Medical Supply Room	0.55	—	—
Healthcare Facility and Hospital	Nursery	0.80	Tunable white or dim-to-warm10	0.10
Healthcare Facility and Hospital	Nurse’s Station	0.85	Tunable white or dim-to-warm10	0.10
Healthcare Facility and Hospital	Nurse’s Station	0.85	Detailed task work7	0.20
Healthcare Facility and Hospital	Operating Room	1.90	—	—
Healthcare Facility and Hospital	Patient Room	0.70	Decorative/display	0.15
Healthcare Facility and Hospital	Patient Room	0.70	Tunable white or dim-to-warm10	0.10
Healthcare Facility and Hospital	Physical Therapy Room	0.75	Tunable white or dim-to-warm10	0.10
Healthcare Facility and Hospital	Recovery Room	0.90	Tunable white or dim-to-warm10	0.10
Hotel Function Area	Hotel Function Area	0.85	Decorative/display	0.25
Kitchen/Food Preparation Area	Kitchen/Food Preparation Area	0.95	—	—
Laboratory, Scientific	Laboratory, Scientific	0.90	Specialized task work8	0.35
Laundry Area	Laundry Area	0.45	—	—

138 2022 CALIFORNIA ENERGY CODE

NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—PERFORMANCE AND PRESCRIPTIVE COMPLIANCE APPROACHES FOR

ACHIEVING ENERGY EFFICIENCY

TABLE 140.6-C AREA CATEGORY METHOD - LIGHTING POWER DENSITY VALUES (WATTS/FT²) — continued

PRIMARY FUNCTION AREA		ALLOWED LIGHTING POWER DENSITY FOR GENERAL LIGHTING (W/ft2)	ADDITIONAL LIGHTING POWER1
PRIMARY FUNCTION AREA	PRIMARY FUNCTION AREA	ALLOWED LIGHTING POWER DENSITY FOR GENERAL LIGHTING (W/ft2)	Qualified Lighting Systems	Additional Allowance (W/ft², unless noted otherwise)
Library	Reading Area	0.80	Decorative/display	0.25
Library	Stacks Area	1.00	—	—
Lobby, Main Entry	Lobby, Main Entry	0.70	Decorative/display	0.25
Locker Room	Locker Room	0.45	—	—
Lounge, Breakroom, or Waiting Area	Lounge, Breakroom, or Waiting Area	0.55	Decorative/display	0.25
Manufacturing, Commercial & Industrial Work Area	Low Bay	0.60	Detailed task work7	0.20
Manufacturing, Commercial & Industrial Work Area	High Bay	0.65	Detailed task work7	0.20
Manufacturing, Commercial & Industrial Work Area	Precision	0.85	Precision specialized work9	0.70
Museum Area	Exhibition/Display	0.60	Decorative/display	0.45
Museum Area	Restoration Room	0.70	Detailed task work7	0.35
Office Area	> 250 square feet	0.60	Decorative/display and portable lighting for office areas6	0.20
Office Area	≤ 250 square feet	0.65	0.65	0.65
Parking Garage Area	Parking Zone and Ramps	0.10	First ATM or ticket machine	100 W
Parking Garage Area	Daylight Adaptation Zones2	1.00	Additional ATM or ticket machine	50 W each
Pharmacy Area	Pharmacy Area	1.00	Specialized task work8	0.35
Retail Sales Area	Grocery Sales	1.00	Decorative/display	0.35
Retail Sales Area	Retail Merchandise Sales	0.95	Decorative/display	0.35
Retail Sales Area	Fitting Room	0.60	External illuminated mirror5	40 W each
Retail Sales Area	Fitting Room	0.60	Internal illuminated mirror5	120 W each
Religious Worship Area	Religious Worship Area	0.95	Decorative/display	0.25
Restrooms	Restrooms	0.65	Decorative/display	0.35
Stairwell	Stairwell	0.60	Decorative/display	0.35
Storage, Commercial/Industrial	Warehouse	0.40	—	—
Storage, Commercial/Industrial	Shipping & Handling	0.60	0.60	0.60
Sports Arena—Playing Area	Class I Facility13	2.25	—	—
Sports Arena—Playing Area	Class II Facility13	1.45	1.45	1.45
Sports Arena—Playing Area	Class III Facility13	1.10	1.10	1.10
Sports Arena—Playing Area	Class IV Facility13	0.75	0.75	0.75
Theater Area	Motion Picture	0.50	Decorative/display	0.25
Theater Area	Performance	0.80	0.80	0.80
Transportation Function	Baggage Area	0.40	—	—
Transportation Function	Ticketing Area	0.45	Decorative/display	0.20
Videoconferencing Studio	Videoconferencing Studio	0.90	Videoconferencing14	1.00
All other	All other	0.40	—	—

White board or chalk board: directional lighting dedicated to a white board or chalk board.
Daylight adaptation zones shall be no longer than 66 feet from the entrance to the parking garage.
Reserved.
Reserved.
Illuminated mirrors: lighting shall be dedicated to the mirror.
Portable lighting in office areas includes under-shelf or furniture-mounted supplemental task lighting when controlled by a time clock or an occupancy sensor.
Detailed task work: lighting provides the high level of visual acuity needed for activities that require close attention to small elements and/or extreme close-up

work. 8. Specialized task work: lighting provides for small-scale, cognitive or fast-performance visual tasks; lighting required for operating specialized equipment

associated with pharmaceutical/laboratorial activities. 9. Precision specialized work: lighting for work performed within a commercial or industrial environment that entails working with low-contrast, finely detailed or

fast-moving objects. 10.Tunable white luminaires capable of color change greater than or equal to 2000K CCT, or dim-to-warm luminaires capable of color change greater than or equal to 500K CCT, connected to controls that allow color changing of the luminaires. 11.Aging eye/low-vision areas can be documented as being designed to comply with the light levels in ANSI/IES RP-28 and are or will be licensed by local or state authorities for senior long-term care, adult day care, senior support and/or people with special visual needs. 12.Transition lighting OFF at night. Lighting power controlled by astronomical time clock or other control to shut off lighting at night. Additional LPD only applies to area within 30 feet of an exit. Not applicable to lighting in daylit zones. 13.Class I facility is used for competition play for 5000 or more spectators. Class II facility is used for competition play for up to 5000 spectators. Class III facility is used for competition play for up to 2000 spectators. Class IV facility is normally used for recreational play and there is limited or no provision for spectators. 14.The additional videoconferencing lighting power shall be allowed provided the videoconferencing studio meets all the requirements of Section 140.6(c)2Gvii.

NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES—PERFORMANCE AND PRESCRIPTIVE COMPLIANCE APPROACHES FOR ACHIEVING ENERGY EFFICIENCY

Exceptions & meaning →

TABLE 140.6-D¶

TAILORED METHOD LIGHTING POWER ALLOWANCES

1	2	3	4	5
Primary Function Area	General Illumination Level (Lux)	Wall Display Lighting Power Density (W/ft)	Allowed Combined Floor Display Power and Task Lighting Power Density (W/ft²)	Allowed Decorative/ Special Effect Lighting Power Density (W/ft²)
Auditorium area	300	3.00	0.20	0.35
Convention, conference, multipurpose, and meeting center areas	300	2.00	0.30	0.35
Dining areas	200	1.25	0.45	0.35
Exhibit, museum areas	150	11.20	0.70	0.35
Hotel area:
Ballroom/events	400	1.80	0.12	0.35
Lobby	200	3.40	0.20	0.35
Lobby, Main entry	200	3.40	0.20	0.35
Religious worship area	300	1.30	0.40	0.35
Retail sales
Grocery	600	6.60	0.60	0.35
Merchandise sales, and showroom areas	500	11.50	0.70	0.35
Theater area:
Motion picture	200	2.00	0.20	0.35
Performance	200	7.30	0.20	0.35

Exceptions & meaning →

TABLE 140.6-E¶

TAILORED WALL AND FLOOR DISPLAY MOUNTING HEIGHT ADJUSTMENT FACTORS

HEIGHT IN FEET ABOVE FINISHED FLOOR AND BOTTOM OF LUMINAIRE(S)	FLOOR DISPLAY OR WALL DISPLAY— MOUNTING HEIGHT ADJUSTMENT FACTOR
≤ 10′-6″	1.00
> 10′-6″ to 14′-0″	0.85
> 14′-0″ to 18′-0″	0.75
> 18′-0″	0.70

TABLE 140.6-F ROOM CAVITY RATIO (RCR) EQUATIONS

140 2022 CALIFORNIA ENERGY CODE

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Exceptions & meaning →

TABLE 140.6-G¶

TAILORED METHOD GENERAL LIGHTING POWER ALLOWED—BY ILLUMINANCE AND ROOM CAVITY RATIO

	GENERAL LIGHTING POWER DENSITY (W/FT²) FOR THE FOLLOWING RCR VALUESb
GENERAL ILLUMINANCE LEVEL (LUX)a	RCR≤ 2.0	RCR > 2.0 AND≤ 3.5	RCR > 3.5 AND≤ 7.0	RCR > 7.0
150	0.35	0.40	0.50	0.65
200	0.40	0.50	0.65	0.85
300	0.55	0.70	0.85	1.20
400	0.65	0.80	1.05	1.25
500	0.80	0.90	1.25	1.55
600	0.90	1.05	1.40	2.00

a. Illuminance values from Column 2 of Table 140.6-D. b. RCR values are calculated using applicable equations in Table 140.6-F.

Exceptions & meaning →