Interior and exterior lighting power, controls and daylighting requirements

Grounded in the retrieved California Energy Code — click a citation to read the verbatim passage:

• § 209.2.3.2.3 High relevance — show source text

  A6.209.2.3.2.3 The primary sidelit area(s) shall be shown on the plans and the general lighting in the primary sidelit areas shall be controlled independently by an automatic daylighting control device that meets the applicable requirements of Section A6.209.1 and is installed in accordance with Section A6.209.2.3.2.4.

  Exceptions:

  1. Where the total primary sidelit daylight area in any enclosed space has an area less than or equal to 2,500 square feet.

  2. Primary sidelit daylight areas where the effective aperture is less than 0.1. The effective aperture for primary sidelit daylight areas is specified in Section 146(a)2E of Title 24, Part 6.

  3. Primary sidelit daylight areas where existing adjacent structures are twice as tall as their distance away from the windows.

  4. Parking garages.

  A6.209.2.3.2.4 Automatic daylighting control device installation and operation. Automatic daylighting control devices shall be installed and configured to operate according to all of the following requirements:

  1. Automatic daylighting control devices shall have photosensors that are located so that they are not readily accessible in accordance with the designer’s or manufacturer’s instructions.

  2. The location where calibration adjustments are made to the automatic daylighting control device shall be readily accessible to authorized personnel or located within 2 feet of a ceiling access panel that is no higher than 11 feet above floor level.

  3. Automatic daylighting controls shall be multilevel, including continuous dimming and have at least one control step that is between 50 percent to 70 percent of rated power of the controlled lighting. Exceptions:

  4. Controlled lighting having a lighting power density less than 0.3 W/ft [2] .

  5. When skylights are replaced or added to on an existing building with an existing general lighting system.

  6. Under all daylight conditions in all areas served by the controlled lighting, the combined illuminance from the controlled lighting and daylight is not less than the illuminance from controlled lighting when no daylight is available.

  7. When all areas served by the controlled lighting are receiving daylight illuminance levels greater than 150 percent of the illuminance from controlled lighting when no daylight is available, the controlled lighting power consumption shall be no greater than 35 percent of the rated power of the controlled lighting.

  A6.209.2.4 Shut-off controls.

  A6.209.2.4.1 In addition to the manual controls installed to comply with Sections A6.209.2.1 and A6.209.2.2 for every floor, all indoor lighting systems shall be equipped with separate automatic controls to shut off the lighting. These automatic controls shall meet the requirements of Section A6.209.1and may be an occupant sensor, automatic time switch or other device capable of automatically shutting off the lighting.

  Exceptions:

  1. Where the lighting system is serving an area that must be continuously lit, 24 hours per day/365 days per year.
  2. Lighting in corridors, guestrooms, dwelling units of high-rise residential buildings and hotel/motels and parking

  garages. 3. Up to 0.3 watts per square foot of lighting in any area within a building that must be continuously illuminated for reasons of building security or emergency egress, provided that the area is designated a security or emergency egress area on the plans and specifications submitted to the enforcement agency under Section 10-103(a)2 of Title 24, Part 1.

• § 130.4 High relevance — show source text

  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 manner consistent with the requirements of Section 130.1(b). L. To qualify for the PAFs for clerestory fenestration, 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.

  TABLE 140.6-A—LIGHTING POWER ADJUSTMENT FACTORS (PAF)	Col2	Col3
  TYPE OF CONTROL	TYPE OF AREA	FACTOR
  1. Daylight continuous dimming plus OFF control	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
  3. Occupant sensing controls in offices larger than 250 square feet	One sensor controlling an area that is 126-250 square feet	0.20
  4. Institutional tuning	Luminaires in non-daylit areas: Luminaires that qualify for other PAFs in this table may also qualify for this tuning PAF.	0.10
  4. Institutional tuning	Luminaires in daylit areas: Luminaires that qualify for other PAFs in this table may also qualify for this tuning PAF.	0.05
  5. Demand responsive control	General lighting luminaires not in the scope of Section 110.12(c). If DR controls are required of Section 110.12(c), this PAF is not available for any lighting in the project. Luminaires that qualify for other PAFs in this table may also qualify for this demand responsive control PAF.	0.05
  6. 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.	0.05
  7. Horizontal slats	Luminaires in daylit areas adjacent to vertical fenestration with interior or exterior horizontal slats. Luminaires that qualify for daylight dimming plus OFF control may also qualify for this PAF.	0.05
  8. 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.	0.10
  a.

• § 170.2 High relevance — show source text

  xi. To qualify for the PAF for a demand responsive control in Table 170.2-L, 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: a. The controlled lighting shall be capable of being automatically reduced in response to a demand response signal; and b. General lighting shall be reduced in a manner consistent with the illuminance uniformity requirements of Section 160.5(b)4B. xii. To qualify for the PAFs for clerestory fenestration, horizontal slats or light shelves in Table 170.2-L, the daylighting design shall meet the requirements in Section 170.2(b). 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 160.5(b)4D are installed.

  TABLE 170.2-L—LIGHTING POWER ADJUSTMENT FACTORS (PAF)	Col2	Col3
  TYPE OF CONTROL	TYPE OF AREA	FACTOR
  1. Daylight Continuous Dimming Plus OFF Control	Luminaires in skylit daylit zone or primary sidelit daylit zone	0.10
  2. Occupant Sensing Controls in Office Spaces Larger Than 250 Square Feet	In open plan offices > 250 square feet: One sensor controlling an area that is: No larger than 125 square feet	0.30
  2. Occupant Sensing Controls in Office Spaces Larger Than 250 Square Feet	In open plan offices > 250 square feet: One sensor controlling an area that is: From 126 to 250 square feet	0.20
  3. Institutional Tuning	Luminaires in nondaylit 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.	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.	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.	0.05
  6. Horizontal Slats	Luminaires in daylit areas adjacent to vertical fenestration with interior or exterior horizontal 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.	0.10
  a. To qualify for any of the power adjustment factors in this table, the installation shall comply with the applicable requirements in Section 170.2(e)1Aii. b. Only one PAF may be used for each qualifying luminaire unless combined. c.

• § 209.5 Medium relevance — show source text

  APPENDIX A6.1 — VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]

  Exception 3 to Section A6.209.5: Traffic Signs. Traffic signs shall meet the requirements of the Appliance Efficiency Regulations.

  A6.209.6 Sign lighting controls. All signs with permanently connected lighting shall meet the requirements below:

  1. Automatic time switch control. All signs with permanently connected lighting shall be controlled with an automatic time switch control that complies with the applicable requirements of Section A6.209.1.
  2. Photocontrol or outdoor astronomical time switch control. All outdoor signs shall be controlled with a photocontrol or outdoor astronomical time switch control.

  Exception: Outdoor signs in tunnels and large covered areas that require illumination during daylight hours. 3. Dimming. All outdoor signs shall be controlled with a dimmer that provides the ability to automatically reduce sign power by a minimum of 65 percent during nighttime hours. Exceptions:

  1. Signs that are illuminated for less than 1 hour per day during daylight hours.
  2. Outdoor signs in tunnels and large covered areas that require illumination during daylight hours.
  3. Metal halide, high pressure sodium, cold cathode and neon lamps used to illuminated signs or parts of signs.
  4. Demand Responsive Electronic Message Center Control. An Electronic Message Center (EMC) having a new connected lighting power load greater than 15 kW shall have a control installed that is capable of reducing the lighting power by a minimum of 30 percent when receiving a demand response signal that is sent out by the local utility.
  5. EMCs required by a health or life safety statue ordinance or regulation, including but not limited to exit signs and traffic signs.

  A6.209.7 Nonresidential lighting control acceptance. Before an occupancy permit is granted for a new building or space or a new lighting system serving a building, space or site is operated for normal use, all indoor and outdoor lighting controls serving the building, space or site shall be certified as meeting the Acceptance Requirements for Code Compliance. A Certificate of Acceptance shall be submitted to the enforcement agency under Section 10-103(a) of Title 24, Part 1, that:

  1. Certifies that plans, specifications, installation certificates and operating and maintenance information meet the requirements of Title 24, Part 6.

  2. Certifies that automatic daylighting controls meet the applicable requirements of Sections A6.209.1 and A6.209.2.3.2.4.

  3. Certifies that when a multilevel astronomical time switch is used to meet Exception 3 to Section A6.209.2.3.2.2 all general lighting in the skylit area is controlled by a multilevel astronomical time switch that meets the applicable requirements of Section A6.209.1 and that has an override switch that meets the requirements of Section A209.2.4.2.

  4. Certifies that lighting controls meet the requirements of Sections A6.209.2.1 through A6.209.2.3 and Title 24, Part 6, Sections 131(e) and (f) and 146(a)2, as applicable.

  5. Certifies that automatic lighting controls meet the applicable requirements of Sections A6.209.1 and A6.209.2.4.

  6. Certifies that occupant-sensors meet the applicable requirements of Sections A6.209.1 and A6.209.2.4.

  7. Certified that outdoor lighting controls meet the applicable requirements of Sections A6.209.1 and A6.209.3.

• § 507.1 Medium relevance — show source text

  SECTION A5.507—ENVIRONMENTAL COMFORT

  A5.507.1 Lighting and thermal comfort controls. Provide controls in the workplace as described in Sections A5.507.1.1 and A5.507.1.2.

  A5.507.1.1 Single-occupant spaces. Provide individual controls that meet energy use requirements in the California Energy Code in accordance with Sections A5.507.1.1.1 and A5.507.1.1.2.

  A5.507.1.1.1 Lighting. Provide individual task lighting and/or daylighting controls for at least 90 percent of the building occupants.

  A5.507.1.1.2 Thermal comfort. Provide individual thermal comfort controls for at least 50 percent of the building occupants.

  1. Occupants shall have control over at least one of the factors of air temperature, radiant temperature, air speed and humidity as described in ASHRAE 55-2004.
  2. Occupants inside 20 feet of the plane of and within 10 feet either side of operable windows can substitute windows to control thermal comfort. The areas of operable window must meet the requirements of Section 120.1 (Requirement for Ventilation) of the California Energy Code.

  A5.507.1.2 Multi-occupant spaces. Provide lighting and thermal comfort system controls for all shared multi-occupant spaces, such as classrooms and conference rooms.

  A5.507.2 Daylight. Provide daylit spaces as required for toplighting and sidelighting in the California Energy Code. In constructing a design, consider the following:

  1. Use of light shelves and reflective room surfaces to maximize daylight penetrating the rooms
  2. Means to eliminate glare and direct sun light, including through skylights
  3. Use of photosensors to turn off electric lighting when daylight is sufficient
  4. Not using diffuse daylighting glazing where views are desired

  A5.507.3 Views. Achieve direct line of sight to the outdoor environment via vision glazing between 2 feet 6 inches and 7 feet 6 inches above finish floor for building occupants in 90 percent of all regularly occupied areas as demonstrated by plan view and section cut diagrams.

  A5.507.3.1 Interior office spaces. Entire areas of interior office spaces may be included in the calculation if at least 75 percent of each area has direct line of sight to perimeter vision glazing.

  A5.507.3.2 Multi-occupant spaces. Include in the calculation the square footage with direct line of sight to perimeter vision glazing.

  Exceptions to Sections A5.507.2 and A5.507.3. Copy/ printing rooms, storage areas, mechanical spaces, rest- rooms, auditoria and other intermittently or infrequently occupied spaces or spaces where daylight would interfere with use of the space.

  A5.507.5 Acoustical control [DSA-SS]. Public Schools and Community Colleges: Unoccupied, furnished classrooms must have a maximum background noise level of no more than 45 dBA LAeq and a maximum (unoccupied, furnished) reverberation of 0.6-second time for classrooms with less than 10,000 cubic feet and a maximum (unoccupied, furnished) reverberation of 0.7-second time for classroom volumes with between 10,000 cubic feet and 20,000 cubic feet.

  SECTION A5.508—OUTDOOR AIR QUALITY

• § 141.0 Medium relevance — show source text

  including motion sensors, that automatically reduce lighting power by at least 40 percent in response to the area being vacated of occupants. Exception to Section 141.0(b)2Lii: Alterations where fewer than five existing luminaires are replaced. iii. In alterations that do not increase the connected lighting load, where 50 percent or more of the existing luminaires are replaced in general hardscape or a specific application, the replacement luminaires shall meet the requirements of Subsection ii above and the requirements of Section 140.7 for general hardscape lighting or specific lighting applications containing the alterations. Exception 1 to Section 141.0(b)2Liii: Alterations where the replacement luminaires have at least 40 percent lower power consumption compared to the original luminaires are not required to comply with the lighting power allowances of Section 140.7. Exception 2 to Section 141.0(b)2Liii: Alterations where fewer than five existing luminaires are replaced. Exception to Section 141.0(b)2L: Acceptance testing requirements of Section 130.4 are not required for alterations where controls are added to 20 or fewer luminaires.

  M. Alterations to existing internally and externally illuminated signs that increase the connected lighting load, replace and rewire more than 50 percent of the ballasts, or relocate the sign to a different location on the same site or on a different site shall meet the requirements of Section 140.8. Exception to Section 141.0(b)2M: Replacement of parts of an existing sign, including replacing lamps, the sign face or ballasts, that do not require rewiring or that are done at a time other than when the sign is relocated, is not an alteration subject to the requirements of Section 141.0(b)2M. N. Service water-heating systems shall meet the requirements of Sections 140.5(a)2 and b, except for the solar water heating requirements. O. A building shell for which interior walls or ceilings are installed for the first time shall meet the requirements of Section 140.3(c).

  154 2025 CALIFORNIA ENERGY CODE

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  NONRESIDENTIAL AND HOTEL/MOTEL OCCUPANCIES— ADDITIONS, ALTERATIONS AND REPAIRS

  P. Electrical power distribution systems. Alterations to electrical power distribution systems shall meet the applicable requirements of Section 130.5 as follows: i. Service electrical metering. New or replacement electrical service equipment shall meet the requirements of Section 130.5(a) applicable to the electrical power distribution system altered. ii. Separation of electrical circuits for electrical energy monitoring. For entirely new or complete replacement of electrical power distribution systems, the entire system shall meet the applicable requirements of Section 130.5(b). iii. Voltage drop. Alterations of feeders and branch circuits where the alteration includes addition, modification, or replacement of both feeders and branch circuits, the altered circuits shall meet the requirements of Section 130.5(c). Exception to Section 141.0(b)2Piii: Voltage drop permitted by California Electrical Code Sections 647.4, 695.6 and 695.7.

  iv. Circuit controls for 120-volt receptacles and controlled receptacles. For entirely new or complete replacement of electrical power distribution systems, the entire system shall meet the applicable requirements of Sections 130.5(d) and 130.5(e).

• § 209.2.3.1.4 Medium relevance — show source text

  The secondary sidelit depth is the horizontal distance perpendicular to the glazing which begins from one window head height and ends at the smaller of:

  1. Two window head heights;
  2. The distance to any 5 feet or higher permanent vertical obstruction; or
  3. The distance to any skylit daylight area.

  A6.209.2.3.1.4 Daylight area, skylit is the combined daylight area under each skylight without double counting overlapping areas. The daylight area under each skylight is bounded by the rough opening of the skylight, plus horizontally in each direction the smallest of:

  1. 70 percent of the floor-to-ceiling height; or
  2. The distance to any primary sidelit area or the daylight area under rooftop monitors; or
  3. The distance to any permanent partition or permanent rack which is farther away than 70 percent of the distance between the top of the permanent partition or permanent rack and the ceiling.

  A6.209.2.3.2 Luminaires providing general lighting that are in or are partially in the skylit daylight area and/or the primary sidelit daylight area shall be controlled as follows:

  A6.209.2.3.2.1 Primary sidelit and skylit daylight areas shall have at least one lighting control that:

  1. Controls at least 50 percent of the general lighting power in the primary sidelit and skylit daylight areas separately from other lighting in the enclosed space.
  2. Controls luminaires in primary sidelit areas separately from skylit areas.

  Exception: Primary sidelit and skylit daylight areas that have a combined area totaling less than or equal to 250 square feet within any enclosed space.

  A6.209.2.3.2.2 For all skylit daylight areas:

  1. The skylit daylight area shall be shown on the plans.
  2. All of the general lighting in the skylit area shall be controlled independently by an automatic daylighting control device that meets the applicable requirements of Section A6.209.1.

  2025 CALIFORNIA GREEN BUILDING STANDARDS CODE APPENDIX A6.1-25

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  APPENDIX A6.1 — VOLUNTARY STANDARDS FOR HEALTH FACILITIES [OSHPD 1, 2 & 4]

  3. The automatic daylighting control shall be installed in accordance with Section A6.209.2.3.2.4.

  Exceptions:

  1. Where the total skylit daylight area in any enclosed space is less than or equal to 2,500 square feet.
  2. Skylit daylight areas where existing adjacent structures obstruct direct beam sunlight for at least 6 hours per day during the equinox as calculated using computer or graphical methods.
  3. When the skylight effective aperture is greater than 4.0 percent and all general lighting in the skylit area is controlled by a multilevel astronomical time switch that meets the requirements of Section A6.209.1.8 and that has an override switch that meets the requirements of Section A6.209.2.4.2.
  4. Skylit daylight areas where the effective aperture is less than 0.006. The effective aperture for skylit daylight areas is specified in Section 146(a)2E of Title 24, Part 6.
• § 160.5 Medium relevance — show source text

  E. For LED tape lighting and LED linear lighting with LED tape lighting components, the maximum rated wattage shall be the sum of the installed length of the tape lighting times its rated linear power density in watts per linear foot, or the maximum rated input wattage of the driver or power supply providing power to the lighting system, with tape lighting tested in accordance with UL 2108 or 8750, or IES LM-79. F. For modular lighting systems that allow the addition or relocation of luminaires without altering the wiring of the system, wattage shall be determined as follows: i. The wattage shall be the greater of: a. 30 watts per linear foot of track or plug-in busway; or b. The rated wattage of all of the luminaires included in the system, where the luminaire wattage is determined as specified in Section 160.5(b)1A; or ii. For line-voltage lighting track and plug-in busway served by a track lighting integral current limiter or a dedicated track lighting supplementary overcurrent protection panel, the wattage shall be determined as follows: a. The volt-ampere rating of current limiter as specified by UL 1077; or b. The sum of the ampere (A) rating of all of the current protection devices times the branch circuit voltages for track lighting supplementary overcurrent protection panel. iii. For other modular lighting systems with power supplied by a driver, power supply or transformer, including but not limited to low-voltage lighting systems, the wattage of the system shall be the maximum rated input wattage of the driver, power supply or transformer published in the manufacturer’s catalogs, as specified by UL 2108 or 8750.

  Exception to Section 160.5(b)1F: For power-over-Ethernet lighting systems, power provided to installed nonlighting devices may be subtracted from the total power rating of the power-over-Ethernet system. G. For all other lighting equipment not addressed by Sections 160.5(b)1B through F, the wattage of the lighting equipment shall be the maximum rated wattage of the lighting equipment, or operating input wattage of the system, labeled in accordance with Section 160.5(b)1A, or published in manufacturer’s catalogs, based on independent testing lab reports as specified by UL 1574, 1598, 2108 or 8750, or IES LM-79. 2. Lighting controls . All lighting controls and equipment shall comply with the applicable requirements in Sections 110.9, 160.5(b) and 160.5(c), and shall be installed in accordance with any applicable manufacturer instructions. 3. Energy management control system (EMCS) . An EMCS may be installed to comply with the requirements of one or more lighting controls if it meets the following minimum requirements: A. Provides all applicable functionality for each specific lighting control or system for which it is installed in accordance with Sections 110.9, 160.5(b) and 160.5(c); and B. Complies with all applicable lighting control installation requirements in accordance with Section 160.5(e) for each specific lighting control or system for which it is installed; and C. Complies with all applicable application requirements for each specific lighting control or system for which it is installed, in accordance with Part 6.

  4. Mandatory indoor lighting controls . Multifamily common use areas shall comply with the applicable requirements of Sections 160.5(b)4A through 160.5(b)4F, in addition to the applicable requirements of Section 110.9. A. **Manual controls.
• § 150.2 Medium relevance — show source text

  150.2(b)1K, 160.5(a)1, 2E, 160.5(b)1A, D, F, 160.5(b)4B, C, Table 160.5-B, 160.5(c)1, 160.5(c)2C, 170.2(e)2 B, D, Table 170.2-L, 170.2(e)6A, D, Table 170.2-R, 180.2(b)4 Luminaire classification 130.0(c), 140.6(a)4A, 160.5(b)1, 170.2(e)2D Luminaire efficacy 150.0(k)1A, 150.2(b)1K, 160.5(a)1A, 180.3(b)4A

  2025 CALIFORNIA ENERGY CODE 311

  on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

  INDEX

  Luminaire housing 130.0(c)1B, 150.0(k)1C, 160.5(a)1C Luminaire power 130.0(c) Luminaire requirements 150.0(k)1, 160.5(a)1 Luminaire shielding 130.2(b), 160.5(c)1 Luminaire wattage 130.0(c)1, 130.0(c)6A, 140.6(c)3G, 160.5(b)1A, F, 170.2(e)4B Lighting Allotment 140.6(b), 140.6(c)1D, 140.6(c)3B, E, F, 170.2(e)3, 170.2(e)4B Lighting Controls 10-103.1, 110.9, 110.12(c), 110.12(e), 120.6(h)2, 6, 130.0(d), 130.0(e), 130.1, 130.2, 130.3, 130.4(a)5, 6, 130.4(b)6, 130.4(c), 140.6(a)2C, G, J, L, Table 140.6-A, 141.0(b)2I, 141.0(c)3, 150.0(k)2, 160.5(a)2, 3, 160.5(b)2, 3, 4, Table 160.5-B, 160.5(c)2, 160.5(d), 160.5(e), 170.2(e)2B, Table 170.2L, 180.2(b)4B Astronomical time-clock control Table 140.6-C, 150.0(k)3A, 160.5(a)3A, Table 170.2-M Automatic daylighting controls 110.9(b)2, 130.1(d), 130.1(f)3, 6, 140.6(a)2L, G, 160.5(b)4D, F, 170.2(e)2B, 180.3(b)4B Automatic lighting controls 140.6(a)2G, 170.2(e)2B Automatic scheduling controls 130.2(c)2, 160.5(c)2B Automatic time switch control 120.2(e)1, 120.6(b)3A,

• § 203.1.1.2 Medium relevance — show source text

  9. In theme parks: outdoor lighting only for themes and special effects.
  10. Lighting for outdoor theatrical and other outdoor live performances, provided that these lighting systems are additions to area lighting systems and are controlled by a multi-scene or theatrical cross-fade control station accessible only to authorized operators.
  11. Outdoor lighting systems for qualified historical buildings, as defined in the California Historical Building Code (Title 24, Part 8), if they consist solely of historical lighting components or replicas of historical lighting components. If lighting systems for qualified historical buildings contain some historical lighting components or replicas of historical components combined with other lighting components, only those historical or historical replica components are exempt. All other outdoor lighting systems for qualified historical buildings shall not be exempted.

  A5.203.1.1.2 Service water heating in restaurants. Newly constructed restaurants 8,000 square feet or greater and with service water heaters rated 75,000 Btu/h or greater shall install a solar water-heating system with a minimum solar savings fraction of 0.15.

  Exceptions:

  1. Buildings with a natural gas service water heater with a minimum of 95-percent thermal efficiency.
  2. Buildings where greater than 75 percent of the total roof area has annual solar access that is less than 70 percent. Solar access is the ratio of solar insolation, including shade, to the solar insolation without shade. Shading from obstructions located on the roof or any other part of the building shall not be included in the determination of annual solar access.

  A5.203.1.1.3 Warehouse dock seal doors. Exterior loading dock doors that are adjacent to conditioned or indirectly conditioned spaces shall have dock seals or dock shelters installed at the time of permitting. This requirement shall apply to newly constructed buildings and to loading dock doors added to existing buildings.

  A5.203.1.1.4 Daylight Design Power Adjustments Factors (PAFs). Daylighting devices shall be installed as specified in Title 24, Part 6, Section 140.3(d).

  A5.203.1.1.5 Exhaust air heat recovery. Heat recovery requirements based on ASHRAE 90.1, Section 6.5.6.1 are adapted and modified for California climate zones as described below.

  1. Systems with minimum design outdoor air fraction of 80 percent or greater and supply air flow of 200 cfm or greater in climate zones 2, 9, 10, 11, 12, 13, 14, 15 shall have a heat recovery system.
  2. Heat recovery systems required by this section shall result in a net sensible energy recovery ratio of at least 60 percent for both heating and cooling as tested using AHRI 1060-2014 or 1061-2014 and certified by AHRI. A 60 percent sensible energy recovery ratio shall mean a change in the dry-bulb of the outdoor air supply equal to 60 percent of the difference between the outdoor air and exhaust air dry-bulb at design conditions. Provisions shall be made to bypass or control the energy recovery system to permit air economizer operation as required by Title 24, Part 6, Section 140.4(e), Economizers.

  Exceptions:

• § 6.4. Medium relevance — show source text

  F. Outdoor lighting controls shall be tested in accordance with Reference Nonresidential Appendix NA7.8; and G. Lighting systems receiving the Institutional Tuning Power Adjustment Factor shall be tested in accordance with Reference Nonresidential Appendix NA7.6.4. H. Demand responsive controls required to control controlled receptacles shall be tested in accordance with Reference Nonresidential Appendix NA7.6.5. 2. Lighting control installation certificate requirements. To be recognized for compliance with Part 6, an Installation Certificate shall be submitted in accordance with Section 10-103(a) for any lighting control system, energy management control system, interlocked lighting system, lighting power adjustment factor, or additional wattage available for a videoconference studio, in accordance with the following requirements, as applicable: A. Certification that when a lighting control system is installed to comply with lighting control requirements in Part 6, it complies with the applicable requirements of Section 110.9 and complies with Reference Nonresidential Appendix NA7.7.1.

  B. Certification that when an energy management control system is installed to function as a lighting control required by Part 6, it functionally meets all applicable requirements for each application for which it is installed, in accordance with Sections 110.9, 160, 170 and 180, and complies with Reference Nonresidential Appendix NA7.7.2. C. Certification that interlocked lighting systems used to serve an approved area comply with Section 170.2(e)2A and comply with Reference Nonresidential Appendix NA7.7.4. D. Certification that lighting controls installed to earn a lighting power adjustment factor (PAF) comply with Section 170.2(e)2B and comply with Reference Nonresidential Appendix NA7.7.5.

  E. Reserved.

  3. When certification is required by Title 24, Part 1, Section 10-103.1, the acceptance testing specified by Section 160.5(e) shall be performed by a Certified Lighting Controls Acceptance Test Technician (CLCATT). If the CLCATT is operating as an employee, the CLCATT shall be employed by a Certified Lighting Controls Acceptance Test Employer. The CLCATT shall disclose on the Certificate of Acceptance a valid CLCATT certification identification number issued by an approved Acceptance Test Technician Certification Provider. The CLCATT shall complete all Certificate of Acceptance documentation in accordance with the applicable requirements in Section 10-103(a)4.

  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 .

  SECTION 160.6—MANDATORY REQUIREMENTS FOR ELECTRIC POWER DISTRIBUTION SYSTEMS

  Multifamily buildings shall comply with the applicable requirements of Sections 160.6(a) through 160.6(e).

  (a) Service electrical metering. Each electrical service or feeder that provides power to the common use areas (interior and exterior) shall have a permanently installed metering system that measures electrical energy use in accordance with Table 160.6-A.

  Exception to Section 160.6(a): Service or feeder for which the utility company provides a metering system for the multifamily building that indicates instantaneous kW demand and kWh for a utility-defined period.

  232 2025 CALIFORNIA ENERGY CODE

• § 140.6 Medium relevance — show source text

  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, general 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.

  1. 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 10103 and 130.4; and B. The area or areas served by the interlocking systems is an auditorium, a convention center, a conference room, a multipurpose room or a theater; and C. The two lighting systems are interlocked with a nonprogrammable double-throw switch to prevent simultaneous operation of both systems. For compliance with Part 6 a nonprogrammable double-throw switch is an electrical switch commonly called a “single pole double throw” or “three-way” switch that is wired as a selector switch allowing one of two loads to be enabled. It can be a line voltage switch or a low voltage switch selecting between two relays. It cannot be overridden or changed in any manner that would permit both loads to operate simultaneously.
  2. Reduction of wattage through controls. In calculating adjusted indoor lighting power, the installed watts of a luminaire providing general lighting in an area listed in Table 140.6-A may be reduced by the product of (i) the number of watts controlled as described in Table 140.6-A, times (ii) the applicable power adjustment factor (PAF), if all of the following conditions are met: A. An installation certificate is submitted in accordance with Section 130.4(b), and B. Luminaires and controls meet the applicable requirements of Section 110.9, and Sections 130.0 through 130.5; and C. The controlled lighting is permanently installed general lighting systems and the controls are permanently installed nonresidential-rated lighting controls. When used for determining PAFs for general lighting in offices, furniture mounted luminaires that comply with all of the following conditions shall qualify as permanently installed general lighting systems: i. The furniture mounted luminaires shall be permanently installed no later than the time of building permit inspection; and ii. The furniture mounted luminaires shall be permanently hardwired; and iii. The furniture mounted lighting system shall be designed to provide indirect general lighting; and iv. Before multiplying the installed watts of the furniture mounted luminaire by the applicable PAF, 0.2 watts per square foot of the area illuminated by the furniture mounted luminaires shall be subtracted from installed watts of the furniture mounted luminaires; and

  v. The lighting control for the furniture mounted luminaire complies with all other applicable requirements in Section 140.6(a)2.