1. for each occupancy and space and mandatory measures in Sections 110 through 139 and 150 are met for each occupancy and space.

2. Administrative requirements. Administrative requirements relating to permit requirements, enforcement by the Commission, locally adopted energy standards, interpretations, claims of exemption, approved calculation methods, rights of appeal, and certification and labeling requirements of fenestration products and roofing products are specified in California Code of Regulations, Title 24, Part 1, Sections 10-101 to 10-114.
3. Certification requirements for manufactured devices. Title 24, Part 6, limits the installation of the following manufactured devices to those that have been certified by their manufacturer to meet or exceed minimum specifications or efficiencies by the Commission.
   1. Central air-conditioning heat pumps and other central air conditioners (Sections 111 and 112).
   2. Combination equipment: space heating and cooling, or space heating and water heating [Section 112(a)3].
   3. Fenestration products (Section 116).
   4. Fluorescent lamp ballasts (Section 111).
   5. Gas space heaters (Section 111 and 112).
   6. Insulating materials and roofing products (Section 118).
   7. Lighting control devices and lighting control systems (Section 119).
   8. Oil fired storage water heaters (Section 113).
   9. Other heating and cooling equipment (Section 111 and 112).
   10. Plumbing fittings (Section 111).
   11. Pool heaters (Section 114).
   12. Refrigerators, refrigerator-freezers and freezers (Section 111).
   13. Room air conditioners (Section 111).
   14. Slab floor perimeter insulation [Section 150(1)].
   15. Water heaters (Section 113).
   16. Track lighting integral current limiter (Section 119(1)).
   17. High efficacy LED light sources (Section 119(m)).
   18. Ballasts for residential recessed luminaires (Section 119(n)).
   19. Dimmable fluorescent ballasts for power adjustment factors (Section 119(o)).

The certification status of any such manufactured device may be confirmed only by reference to:

1. A directory published or approved by the Commission; or
2. A copy of the application for certification from the manufacturer and the letter of acceptance from the Commission staff; or
3. Written confirmation from the publisher of a Commission-approved directory that a device has been certified; or
4. A Commission-approved label on the device.

   Note: Title 24, Part 6, does not require a builder, designer, owner, operator or enforcing agency to test any certified device to determine its compliance with minimum specifications or efficiencies adopted by the Commission.

SECTION 101
DEFINITIONS AND RULES OF CONSTRUCTION

1. Rules of Construction.
   1. Where the context requires, the singular includes the plural and the plural includes the singular.
   2. The use of “and” in a conjunctive provision means that all elements in the provision must be complied with or must exist to make the provision applicable. Where compliance with one or more elements suffices, or where existence of one or more elements makes the provision applicable, “or” (rather than “and/or”) is used.
   3. “Shall” is mandatory and “may” is permissive.
2. Definitions. Terms, phrases, words and their derivatives in Title 24, Part 6, shall be defined as specified in Section 101. Terms, phrases, words and their derivatives not found in Section 101 shall be defined as specified in Title 24, Part 2, Chapter 2 of the California Code of Regulations. Terms, phrases, words and their derivatives not found in either Title 24, Part 6, or Chapter 2 shall be defined as specified in Title 24, Part 2, Chapter 2 of the California Building Code. Where terms, phrases, words and their derivatives are not defined in any of the references above, they shall be defined as specified in Webster’s Third New International Dictionary of the English Language, Unabridged (1987 edition), unless the context requires otherwise.

ACCA is the Air-Conditioning Contractors of America.

ACCA MANUAL J is the Air-Conditioning Contractors of America document entitled “Manual J-Residential Load Calculation, Eighth Edition.”(2003)

ACCEPTANCE REQUIREMENTS FOR CODE COMPLIANCE is a description of test procedures in the Reference Nonresidential Appendices that includes equipment and systems to be tested, functions to be tested, conditions under which the test shall be performed, the scope of the tests, results to be obtained and measurable criteria for acceptable performance.

ACCENT (LIGHT) is a directional luminaire designed to highlight or spotlight objects. It can be recessed, surface mounted, or mounted to a pendant, sterm or track.

ACCESSIBLE is having access thereto, but which first may require removal or opening of access panels, doors or similar obstructions.

ADDITION is any change to a building that increases conditioned floor area and conditioned volume. See also, “newly conditioned space.” Addition is also any change that increases the floor area or volume of an unconditioned building of an occupancy group or type regulated by Part 6. Addition is also any change that increases the illuminated area of an outdoor lighting application regulated by Part 6.

AGRICULTURAL BUILDING is a structure designed and constructed to house farm implements, hay, grain, poultry, live-

stock or other horticultural products. It is not a structure that is a place of human habitation, a place of employment where agricultural products are processed, treated or packaged, or a place used by the public.

AIR-TO-AIR HEAT EXCHANGER is a device which will reduce the heat losses or gains that occur when a building is mechanically ventilated, by transferring heat between the conditioned air being exhausted and outside air being supplied.

ALTERATION is any change to a building’s water-heating system, space-conditioning system, lighting system or envelope that is not an addition. Alteration is also any change that is regulated by Part 6 to an outdoor lighting system that is not an addition. Alteration is also any change that is regulated by Part 6 to signs located either indoors or outdoors.

ALTERED COMPONENT is a component that has undergone an alteration and is subject to all applicable Standards requirements.

ALTERNATIVE CALCULATION METHODS (ACMs) are the Commission’s Public Domain Computer Programs, one of the Commission’s Simplified Calculation Methods or any other calculation method approved by the Commission. ACMs are also referred to as compliance software.

ALTERNATIVE CALCULATION METHODS APPROVAL MANUAL is the document that specifies the procedures and tests required for approval of Alternative Calculation Methods.

ANNUAL FUEL UTILIZATION EFFICIENCY (AFUE) is a measure of the percentage of heat from the combustion of gas or oil which is transferred to the space being heated during a year, as determined using the applicable test method in the Appliance Efficiency Regulations or Section 112.

ANNUNCIATED is a type of visual signaling device that indicates the on, off, or other status of a load.

ANSI is the American National Standards Institute.

ANSI C82.6-2005 is the American National Standards Institute document entitled “Ballasts for High-Intensity Discharge Lamps—Methods of Measurement.” (ANSI C82.6-2005)

ANSI Z21.10.3 is the American National Standards Institute document entitled “Gas Water Heaters, Volume I, Storage Water Heaters with input ratings above 75,000 But per hour,”2001. (ANSI Z21.10.3-2001)

ANSI Z21.13 is the American National Standards Institute document entitled “Gas-Fired Low Pressure Steam and Hot Water Boilers,”2000. (ANSI Z21.13-2000).

ANSI Z21.40.4 is the American National Standards Institute document entitled “Performance Testing and Rating of Gas-Fired, Air Conditioning and Head Pump Appliances,” 1996. (ANSI Z21.40.4-1996)

ANSI Z21.47 is the American National Standards Institute document entitled “Gas-Fired Central Furnaces,” 2001. (ANSI Z21.47-2001)

ANSI Z83.8 is the American National Standards Institute document entitled “Gas Unit Heaters and Gas-Fired Duct Furnaces,” 2002. (ANSI Z83.8-2002)

APPLIANCE EFFICIENCY REGULATIONS are the regulations in Title 20, Sections 1601 et seq. of the California Code of Regulations.

APPROVED BY THE COMMISSION means approval under Section 25402.1 of the Public Resources Code.

APPROVED CALCULATION METHOD (See “alternative calculation methods.”)

ARI is the Air-conditioning and Refrigeration Institute.

ARI 210⁄240 is the Air-conditioning and Refrigeration Institute document entitled “Unitary Air-Conditioning and Air-Source Heat Pump Equipment,” 2003. (ARI 210⁄240-2003)

ARI 310⁄380 is the Air-conditioning and Refrigeration Institute document entitled “Packaged Terminal Air-Conditioners and Heat Pumps,” 1993. (ARI 310⁄380-93)

ARI 320 is the Air-conditioning and Refrigeration Institute document entitled “Water-Source Heat Pumps,” 1998. (ARI 320-98)

ARI 325 is the Air-conditioning and Refrigeration Institute document entitled “ Ground Water-Source Heat Pumps,” 1998. (ARI 325-98)

ARI 340⁄360 is the Air-conditioning and Refrigeration Institute document entitled “Commercial and Industrial Unitary Air-Conditioning and Heat Pump Equipment,” 2000. (ARI 340⁄360-2000)

ARI 365 is the Air-conditioning and Refrigeration Institute document entitled, “Commercial and Industrial Unitary Air-Conditioning Condensing Units,” 2002. (ARI 365-2000)

ARI 460 is the Air-conditioning and Refrigeration Institute document entitled “Remote Mechanical-Draft Air-Cooled Refrigerant Condensers,”2000. (ARI 460-2000)

ARI 550⁄590 is the Air-conditioning and Refrigeration Institute document entitled “Standard for Water Chilling Packages Using the Vapor Compression Cycle,”, 1998. (ARI 550⁄590-98)

ARI 560 is the Air-conditioning and Refrigeration Institute document entitled “Absorption Water Chilling and Water Heating Packages,” 2000. (ARI 560-2000)

ASHRAE is the American Society of Heating, Refrigerating and Air-conditioning Engineers.

ASHRAE CLIMATIC DATA FOR REGION X is the American Society of Heating, Refrigerating and Air-conditioning Engineers document entitled “ASHRAE Climatic Data for Region X, Arizona, California, Hawaii and Nevada,” Publication SPCDX, 1982 and “Supplement,” 1994.

ASHRAE HANDBOOK, APPLICATIONS VOLUME is the American Society of Heating, Refrigerating and Air-conditioning Engineers document entitled “ASHRAE Handbook; Heating, Ventilating, and Air-Conditioning Applications.” (2003)

ASHRAE HANDBOOK, EQUIPMENT VOLUME is the American Society of Heating, Refrigerating and Air-conditioning Engineers document entitled “ASHRAE Handbook:

Heating, Ventilating, and Air-conditioning Systems and Equipment.” (2000)

ASHRAE HANDBOOK, FUNDAMENTALS VOLUME is the American Society of Heating, Refrigerating and Air-conditioning Engineers document entitled “ASHRAE Handbook: Fundamentals.” (2005)

ASHRAE STANDARD 55 is the American Society of Heating, Refrigerating and Air-conditioning Engineers document entitled “Thermal Environmental Conditions for Human Occupancy,” 2004. (ASHRAE Standard 55–2004)

ASHRAE STANDARD 62.2 is the American Society of Heating, Refrigerating and Air-Conditioning Engineers document entitled “Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings,” 2007 (ASHRAE Standard 62.2–2007).

ASME is the American Society of Mechanical Engineers.

ASTM is the American Society for Testing and Materials.

ASTM C 55 is the American Society for Testing and Materials document entitled “Standard Specification for Concrete Brick,” 2001. (ASTM C 55–01)

ASTM C 177 is the American Society for Testing and Materials document entitled “Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded-Hot-Plate Apparatus,” 1997. (ASTM C 177–97)

ASTM C 272 is the American Society for Testing and Materials document entitled “Standard Test Method for Water Absorption of Core Materials for Structural Sandwich Constructions,” 2001. (ASTM C 272–01)

ASTM C 335 is the American Society for Testing and Materials document entitled “Standard Test Method for Steady-State Heat Transfer Properties of Horizontal Pipe Insulation,” 1995. (ASTM C 335–95)

ASTM C 518 is the American Society for Testing and Materials document entitled “Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus,” 2002. (ASTM C 518–02)

ASTM C 731 is the American Society for Testing and Materials document entitled “Standard Test Method for Extrudability, After Package Aging of Latex Sealants,” 2000. (ASTM C 731–00)

ASTM C 732 is the American Society for Testing and Materials document entitled “Standard Test Method for Aging Effects of Artificial Weathering on Latex Sealants,” 2001. (ASTM C 732–01)

ASTM C 836 is the American Society of Testing and Materials document entitled, “Standard Specification for High solids Content, cold Liquid-Applied Elastomeric Waterproofing Membrane for Use with Separate Wearing Course,” 2005. (ASTM C 836–05)

ASTM C 1167 is the American Society for Testing and Materials document entitled “Standard Specification for Clay Roof Tiles,” 1996. (ASTM C 1167–96)

ASTM C 1371 is the American Society for Testing and Materials document entitled “Standard Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers,” 1998. (ASTM C 1371–98)

ASTM C 1583 is the American Society of Testing and Materials document entitled, “Standard Test Method for Tensile Strength of Concrete Surfaces and the Bond Strength or Tensile Strength of Concrete Repair and Overlay Materials by Direct Tension” Pull-off Method),” 2004. (ASTM C 1583–04)

ASTM D 522 is the American Society of Testing and Materials document entitled, “Standard Test Methods for Mandrel Bend Test of Attached Organic Coatings,” 2001. [ASTM D 522– 93a(2001)]

ASTM D 822 is the American Society of Testing and Materials document entitled, “Standard Practice for Filtered Open-Flame Carbon-Arc Exposures of Paint and Related Coatings,”2001. (ASTM D 822–01)

ASTM D 1003 is the American Society for Testing and Materials document entitled “Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics,” 2000. (ANSI⁄ASTM D 1003–00)

ASTM D 1653 is the American Society of Testing and Materials document entitled, “Standard Test Methods for water Vapor Transmission of Organic Coating Films,” 2003. (ASTM D 1653–03)

ASTM D 2370 is the American Society of Testing and Materials document entitled, “Standard Test Method for Tensile Properties of Organic Coatings,” 2002. [ASTM D 2370– 98 (2002)]

ASTM D 2824 is the American Society of Testing and Materials document entitled “Standard Specification for Aluminum-Pigmented Asphalt Roof Coatings, Nonfibered, Asbestos Fibered, and Fibered without Asbestos,” 2002. (ASTM D 2824–02)

ASTM D 3468 is the American Society of Testing and Materials document entitled, “Standard Specification for Liquid-Applied Neoprene and Chlorosulfonated Polyethylene Used in Roofing and Waterproofing,” 1999. (ASTM D 3468–99)

ASTM D 3805 is the American Society of Testing and Materials document entitled “Standard Guide for Application of Aluminum-Pigmented Asphalt Roof Coatings,”1997. [ASTM D 3805–97 (reapproved 2003)]

ASTM D 5870 is the American Society of Testing and Materials document entitled, “Standard Practice for Calculating Property Retention Index of Plastics,”2003. [ASTM D 5870–95 (2003)]

ASTM D 6083 is the American Society of Testing and Materials document entitled, “Standard Specification for Liquid Applied Acrylic Coating Used in Roofing,” 2005. (ASTM D 6083–05e1)

ASTM D 6694 is the American Society of Testing and Materials document entitled, ”Standard Specification for Liquid-Applied Silicone Coating Used in Spray Polyurethane Foam Roofing,” 2001. (ASTM D 6694–01)

ASTMD 6848 is the American Society of Testing and Materials document entitled “ Standard Specification for Aluminum-Pigmented Emulsified Asphalt Used as a Protective Coating for Roofing,” 2002. (ASTM D 6848-02)

ASTMD 4798 is the American Society for Testing and Materials document entitled “Standard Test Method for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Xenon-Arc Method),” 2001. (ASTMD 4798-01)

ASTME 96 is the American Society for Testing and Materials document entitled “Standard Test Methods for Water Vapor Transmission of Materials,” 2000. (ASTME 96-00)

ASTME 283 is the American Society for Testing and Materials document entitled “Standard Test Method for Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen,” 1991. [ASTM E 283-91 (1999)]

ASTM E 408 is the American Society for Testing and Materials document entitled, “Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques,” 1971. [ASTM E 408-71 (2002)]

AUTOMATIC is capable of operating without human intervention.

AUTOMATIC MULTILEVEL DAYLIGHTING CONTROL is a multilevel lighting control that automatically reduces lighting in multiple steps or continuous dimming in response to available daylight. This control uses one or more photosensors to detect changes in daylight illumination and then change the electric lighting level in response to the daylight changes.

AUTOMATED TELLER MACHINE (ATM) is any electronic information processing device which accepts or dispenses currency in connection with a credit, deposit or convenience account without involvement by a clerk.

AUTOMATIC TIME SWITCH CONTROL DEVICES are devices capable of automatically turning loads off and on based on time schedules.

BATHROOM (See “residential space type.”)

BELOW-GRADE WALL is the portion of a wall, enclosing conditioned space, that is below the grade line.

BUILDING is any structure or space covered by Section 100 of the Building Energy Efficiency Standards.

BUILDING ENVELOPE is the ensemble of exterior and demising partitions of a building that enclose conditioned space.

CALL CENTER is a phone center that handles large number of phone calls including but not limited to help desk, customer and sales support, technical support, emergency response, telephone answering service, and inbound and outbound telemarketing.

CAPTIVE-KEY OVERRIDE is a type of lighting control in which the key that activates the override cannot be released when the lights are in the on position.

CENTRAL FAN-INTEGRATED VENTILATION SYSTEM is a central forced air heating and⁄or cooling system which is intended to operate on a regular basis to bring in outdoor ventilation air and⁄or distribute air around the home for comfort and ventilation even when heating and cooling are not needed.

CERTIFYING ORGANIZATION is an independent organization recognized by the Commission to certify manufactured adopted by the Commission.

CHANDELIER is a ceiling-mounted, close-to-ceiling, or suspended decorative luminaire that uses glass, crystal, ornamental metals or other decorative material and that typically is used in hotel⁄motels, restaurants or churches as a significant element in the interior architecture.

CLIMATE ZONES are the 16 geographic areas of California for which the commission has established typical weather data, prescriptive packages and energy budgets. Climate zone boundary descriptions are in the document “California Climate Zone Descriptions” (July 1995), incorporated herein by reference. Figure 101-A is an approximate map of the 16 climate zones.

CLOSED-CIRCUIT COOLING TOWER is a closed-circuit cooling tower that utilizes indirect contact between a heated fluid, typically water or glycol, and the cooling atmosphere to transfer the source heat load indirectly to the air, essentially combining a heat exchanger and cooling tower into one relatively compact device.

CODES, CALIFORNIA HISTORICAL BUILDING CODE is the California Historical Building Code, California Code of Regulations, Title 24, Part 8 and Part 2 (Chapter 34).

CODES, CBC is the 2007 California Building Code.

CODES, CEC is the 2007 California Electric Code.

CODES, CMC is the 2007 California Mechanical Code.

CODES, CPC is the 2007 California Plumbing Code.

COEFFICIENT OF PERFORMANCE (COP), COOLING, is the ratio of the rate of net heat removal to the rate of total energy input, calculated under designated operating conditions and expressed in consistent units, as determined using the applicable test method in the Appliance Efficiency Regulations or Section 112.

COEFFICIENT OF PERFORMANCE (COP), HEATING, is the ratio of the rate of net heat output to the rate of total energy input, calculated under designated operating conditions and expressed in consistent units, as determined using the applicable test method in the Appliance Efficiency Regulations or Section 112.

COEFFICIENT OF PERFORMANCE (COP), HEAT PUMP is the ratio of the rate of useful heat output delivered by the complete heat pump unit (exclusive of supplementary heating) to the corresponding rate of energy input, in consistent units and as determined using the applicable test method in Appliance Efficiency Regulations or Section 112.

COMBUSTION EFFICIENCY is a measure of the percentage of heat from the combustion of gas or oil that is transferred to the medium being heated or lost as jacket loss.

COMMISSION is the California State Energy Resources Conservation and Development Commission.

CONDITIONED FLOOR AREA (CFA) is the floor area (in square feet) of enclosed conditioned space on all floors of a building, as measured at the floor level of the exterior surfaces of exterior walls enclosing the conditioned space.

CONDITIONED SPACE is space in a building that is either directly conditioned or indirectly conditioned.

CONDITIONED SPACE, DIRECTLY is an enclosed space that is provided with wood heating, is provided with mechanical heating that has a capacity exceeding 10 Btu⁄hr-ft² or is provided with mechanical cooling that has a capacity exceeding 5 Btu⁄hr-ft², unless the space-conditioning system is designed for a process space. (See “Process space”.)

CONDITIONED SPACE, INDIRECTLY is enclosed space, including, but not limited to, unconditioned volume in atria, that (1) is not directly conditioned space; and (2) either (a) has a thermal transmittance area product (UA) to directly conditioned space exceeding that to the outdoors or to unconditioned space and does not have fixed vents or openings to the outdoors or to unconditioned space, or (b) is a space through which air from directly conditioned spaces is transferred at a rate exceeding three air changes per hour.

CONDITIONED VOLUME is the total volume (in cubic feet) of the conditioned space within a building.

CONTINOUS DIMMING (See “dimming, continuous.”)

COOL ROOF is a roofing material with high thermal emittance and high solar reflectance, or low thermal emittance and exceptionally high solar reflectance as specified in Section 118 (i) that reduces heat gain through the roof.

COOLING EQUIPMENT is equipment used to provide mechanical cooling for a room or rooms in a building.

CRAWL SPACE is a space immediately under the first floor of a building adjacent to grade.

CRRC-1 is the Cool Roof Rating Council document entitled “Product Rating Program Manual.”

CTI is the Cooling Technology Institute.

CTI ATC-105 is the Cooling Technology Institute document entitled “Acceptance Test Code for Water Cooling Towers,” 2000. (CTI ATC-105-00)

CTI STD-201 is the Cooling Technology Institute document entitled “Standard for Certification of Water-Cooling Tower Thermal Performance‚” 2004. (CTI STD-201-04)

C-VALUE (also known as C-factor) is the time rate of heat flow through unit area of a body induced by a unit temperature difference between the body surfaces, in Btu (hr*ft²*°F). It is not the same as K-value or K-factor.

DAYLIGHT AREA is the floor area under skylights or next to windows. The daylight area includes primary sidelit daylight area, secondary sidelit daylight area and skylit daylight area.

DEADBAND is the temperature range within which the HVAC system is neither calling for heating or cooling.

DECORATIVE GAS APPLIANCE is a gas appliance that is designed or installed for visual effect only, cannot burn solid wood, and simulates a fire in a fireplace.

DEGREE DAY, HEATING, is a unit, based upon temperature difference and time, used in estimating fuel consumption and specifying nominal annual heating load of a building. For any one day, when the mean temperature is less than 65°F, there exist as many degree days as there are Fahrenheit degrees difference in temperature between the mean temperature for the day and 65°F. The number of degree days for specific geographical locations are those listed in the Reference Joint Appendix. For those localities not listed in the Reference Joint Appendix, the number of degree days is as determined by the applicable enforcing agency.

DEMAND RESPONSE is controlling electricity loads in buildings in response to an electronic signal sent by the local utility requesting their customers to reduce electricity consumption.

DEMAND RESPONSE PERIOD is a period of time during which the local utility is curtailing electricity loads by sending out a demand response signal.

DEMAND RESPONSE SIGNAL is an electronic signal sent out by the local utility indicating a request to their customers to curtail electricity consumption.

DEMAND RESPONSIVE LIGHTING CONTROL is a control that reduces lighting power consumption in response to a demand response signal.

DEMISING PARTITION is a wall, fenestration, floor or ceiling that separates conditioned space from enclosed unconditioned space.

DESIGN CONDITIONS are the parameters and conditions used to determine the performance requirements of space-conditioning systems. Design conditions for determining design heating and cooling loads are specified in Section 144(b) for nonresidential, high-rise residential, and hotel⁄motel buildings and in Section 150(h) for low-rise residential buildings.

DESIGN HEAT GAIN RATE is the total calculated heat loss through the building envelope under design conditions.

DESIGN HEAT LOSS RATE is the total calculated heat loss through the building envelope under design conditions.

DIMMING, CONTINUOUS is a lighting control method that is capable of varying the light output of lamps over a continuous range from full light output to minimum light output.

DIMMING, STEPPED is a lighting control method that varies the light output of lamps in one or more predetermined discrete steps between full light output and off.

DIRECT DIGITAL CONTROL (DDC) is a type of control where controlled and monitored analog or binary data, such as temperature and contact closures, are converted to digital format for manipulation and calculations by a digital computer or microprocessor, then converted back to analog or binary form to control mechanical devices.

DISPLAY LIGHTING is lighting confined to the area of a display that provides a higher level of illuminance than the level of surrounding ambient illuminance.

DISPLAY PERIMETER is the length of an exterior wall in a Group B; Group F, Division 1; or Group M Occupancy that immediately abuts a public sidewalk, measured at the sidewalk level for each story that abuts a public sidewalk.

DOOR is an operable opening in the building envelope that is not a fenestration product, including swinging and roll-up doors, fire doors and access hatches. Doors that are more than one-half glass in area are considered a fenestration product.

DUAL-GLAZED GREENHOUSE WINDOWS are a type of dual-glazed fenestration product which adds conditioned volume but not conditioned floor area to a building.

DUCT SEALING is a procedure for installing a space-conditioning distribution system that minimizes leakage of air from or to the distribution system. Minimum specifications for installation procedures, materials, diagnostic testing and field verification are contained in the Reference Residential Appendix RA3 and Reference Nonresidential Appendix NA1.

EAST-FACING (See “orientation.”)

ECONOMIZER, AIR, is a ducting arrangement, including dampers, linkages and an automatic control system that allows a cooling supply fan system to supply outside air to reduce or eliminate the need for mechanical cooling.

ECONOMIZER, WATER, is a system by which the supply air of a cooling system is cooled directly or indirectly by evaporation of water, or other appropriate fluid, in order to reduce or eliminate the need for mechanical cooling.

EFFECTIVE APERTURE (EA) is a measure of the extent that vertical glazing or skylights are effective for providing daylighting.

EFFICACY, LAMP is the quotient of rated initial lamp lumens divided by the rated lamp power (watts), without including auxiliaries such as ballasts, transformers and power supplies.

ELECTRONICALLY-COMMUTATED MOTOR is a brushless DC motor with a permanent magnet rotor that is surrounded by stationary motor windings, and an electronic controller that varies motor speed and direction by sequentially supplying DC current to the windings.

EMITTANCE, THERMAL is the ratio of the radiant heat flux emitted by a sample to that emitted by a blackbody radiator at the same temperature.

ENCLOSED SPACE is space that is substantially surrounded by solid surfaces, including walls, ceilings or roofs, doors, fenestration areas, and floors or ground.

ENERGY BUDGET is the maximum amount of Time Dependent Valuation (TDV) energy that a proposed building, or portion of a building, can be designed to consume, calculated with the approved procedures specified in Title 24, Part 6.

ENERGY EFFICIENCY RATIO (EER) is the ratio of net cooling capacity (in Btu/hr) to total rate of electrical energy input (in watts), of a cooling system under designated operating conditions, as determined using the applicable test method in the Appliance Efficiency Regulations or Section 112.

ENERGY FACTOR (EF) of a water heater is a measure of overall water heater efficiency as determined using the applicable test method in the Appliance Efficiency Regulations.

ENERGY MANAGEMENT CONTROL SYSTEM (EMCS) is often a computerized control system designed to regulate the energy consumption of a building by controlling the operation of energy consuming systems, such as the heating, ventilation and air conditioning (HVAC), lighting and water heating systems. The EMCS is also capable of monitoring environmental and system loads, and adjusting HVAC operations in order to optimize energy usage and respond to demand response signals.

ENERGY OBTAINED FROM DEPLETABLE SOURCES is electricity purchased from a public utility, or any energy obtained from coal, oil, natural gas or liquefied petroleum gases.

ENERGY OBTAINED FROM NONDEPLETABLE SOURCES is energy that is not energy obtained from depletable sources.

ENFORCEMENT AGENCY is the city, county or state agency responsible for issuing a building permit.

ENTIRE BUILDING is the ensemble of all enclosed space in a building, including the space for which a permit is sought, plus all existing conditioned and unconditioned space within the structure.

ENVELOPE (See “building envelope.”)

EXFILTRATION is uncontrolled outward air leakage from inside a building, including leakage through cracks and interstices, around windows and doors, and through any other exterior partition or duct penetration.

EXTERIOR DOOR is a door through an exterior partition that is opaque or has a glazed area that is less than or equal to one half of the door area. Doors with a glazed area of more than one half of the door area are treated as a fenestration product.

EXTERIOR FLOOR⁄SOFFIT is a horizontal exterior partition, or a horizontal demising partition, under conditioned space. For low-rise residential occupancies, exterior floors also include those on grade.

EXTERIOR PARTITION is an opaque, translucent or transparent solid barrier that separates conditioned space from ambient air or space that is not enclosed. For low-rise residential occupancies, exterior partitions also include barriers that separate conditioned space from unconditioned space, or the ground.

EXTERIOR ROOF⁄CEILING is an exterior partition, or a demising partition, that has a slope less than 60 degrees from horizontal, that has conditioned space below, and that is not an exterior door or skylight.

EXTERIOR ROOF⁄CEILING AREA is the area of the exterior surface of exterior roof⁄ceilings.

EXTERIOR WALL is any wall or element of a wall, or any member or group of members, which defines the exterior boundaries or courts of a building and which has a slope of 60 degrees or greater with the horizontal plane. An exterior wall or

partition is not an exterior floor⁄soffit, exterior door, exterior roof⁄ceiling, window, skylight or demising wall.

EXTERIOR WALL AREA is the area of the opaque exterior surface of exterior walls.

FACTORY ASSEMBLED COOLING TOWERS are cooling towers constructed from factory-assembled modules either shipped to the site in one piece or put together in the field.

FENESTRATION, BAY WINDOW is a combination assembly which is composed of three or more individual windows either joined side by side or installed within opaque assemblies and which projects away from the wall on which it is installed. Center windows, if used, are parallel to the wall on which the bay is installed. The two side windows are angled with respect to the center window(s). Common angles are 30° and 45°, although other angles are sometimes employed.

FENESTRATION, CURTAIN WALL is an external nonbearing wall intended to separate the exterior and interior environments, which may consist entirely (or principally) of a combination of framing materials, glass and glazing, opaque in-fill and other surfacing materials supported by or within a framework.

FENESTRATION, GARDEN WINDOW is a window unit that consists of a three-dimensional, five-sided structure, with or without an operating sash, also known as a greenhouse window.

FENESTRATION PRODUCT is any transparent or translucent material plus any sash, frame, mullions and dividers, in the envelope of a building, including, but not limited to, windows, sliding glass doors, French doors, skylights, curtain walls, garden windows and other doors with a glazed area of more than one half of the door area.

FENESTRATION PRODUCT, FIELD-FABRICATED is a fenestration product including a glazed exterior door whose frame is made at the construction site of standard dimensional lumber or other materials that were not previously cut, or otherwise formed with the specific intention of being used to fabricate a fenestration product or exterior door. Field-fabricated does not include site-built fenestration with a label certificate or products required to have temporary or permanent labels.

FENESTRATION PRODUCT, MANUFACTURED is a fenestration product constructed of materials which are factory cut or otherwise factory formed with the specific intention of being used to fabricate a fenestration product. A manufactured fenestration product is typically factory-assembled before delivery to a job site. However a “knocked-down” or partially assembled product sold as a fenestration product is also a manufactured fenestration product when provided with temporary and permanent labels as described in Section 10-111; otherwise it is a site-built fenestration product when provided with temporary and permanent labels as described in Section 10-111.

FENESTRATION PRODUCT, SITE-BUILT is fenestration designed to be field-glazed or field assembled units using specific factory cut or otherwise factory formed framing and glazing units. Examples of site-built fenestration include storefront systems, curtain walls and atrium roof systems.

FENESTRATION SYSTEM is a collection of fenestration products included in the design of a building. (See “fenestration product.”)

FIELD ERECTED COOLING TOWERS are cooling towers which are custom designed for a specific application and which cannot be delivered to a project site in the form of factory assembled modules due to their size, configuration or materials of construction.

FIREPLACE is a hearth and firechamber or similar prepared place in which a fire may be made and which is built in conjunction with a flue or chimney, including but not limited to factory-built fireplaces, masonry fireplaces and masonry heaters as further clarified in the CBC.

FLOOR⁄SOFFIT TYPE is a type of floor⁄soffit assembly having a specific heat capacity, framing type and U-factor.

FLUX is the rate of energy flow per unit area.

FOOD PREPARATION EQUIPMENT is cooking equipment intended for commercial use, including coffee machines, espresso coffee makers, conductive cookers, food warmers including heated food servers, fryers, griddles, nut warmers, ovens, popcorn makers, steam kettles, ranges and cooking appliances for use in commercial kitchens, restaurants or other business establishments where food is dispensed.

GAS COOLING EQUIPMENT is cooling equipment that produces chilled water or cold air using natural gas or liquefied petroleum gas as the primary energy source.

GAS HEATING SYSTEM is a natural gas or liquefied petroleum gas heating system.

GAS LOG is a self-contained, free-standing, open-flame, gas-burning appliance consisting of a metal frame or base supporting simulated logs, and designed for installation only in a vented fireplace.

GENERAL LIGHTING is lighting designed to provide a substantially uniform level of illumination throughout an area, exclusive of any provision for special visual tasks or decorative effect. When designed for lower-than-task illuminance used in conjunction with other specific task lighting systems, it is also called “ambient” lighting.

GLAZING (See “fenestration product.”)

GOVERNMENTAL AGENCY is any public agency or subdivision thereof, including, but not limited to, any agency of the state, a county, a city, a district, an association of governments or a joint power agency.

GROSS EXTERIOR ROOF AREA is the sum of the skylight area and the exterior roof⁄ceiling area.

GROSS EXTERIOR WALL AREA is the sum of the window area, door area and exterior wall area.

GU-24 is the designation of a lamp holder and socket configuration, based on a coding system by the International Energy Consortium, where “G” indicates the broad type of two or more projecting contacts, such as pins or posts, “U” distinguishes between lamp and holder designs of similar type but that are not interchangeable due to electrical or mechanical requirements, and “24” indicates 24 millimeters center to center spacing of the electrical contact posts.

HABITABLE STORY is a story that contains space in which humans may work or live in reasonable comfort, and that has at least 50 percent of its volume above grade.

HEAT CAPACITY (HC) is the amount of heat necessary to raise the temperature of all the components of a unit area in an assembly by 1°F. It is calculated as the sum of the average thickness times the density times the specific heat for each component, and is expressed in Btu⁄ft² °F.

HEAT PUMP is a device that is capable of heating by refrigeration, and that may include a capability for cooling.

HEATED SLAB FLOOR is a concrete slab floor or a lightweight concrete topping slab laid over a raised floor, with embedded space heating by any means. The heating system using the heated slab floor is sometimes referred to as radiant slab floors or radiant heating.

HEATING EQUIPMENT is equipment used to provide mechanical heating for a room or rooms in a building.

HEATING SEASONAL PERFORMANCE FACTOR (HSPF) is the total heating output of a central air-conditioning heat pump (in Btu) during its normal use period for heating divided by the total electrical energy input (in watt-hours) during the same period, as determined using the applicable test method in the Appliance Efficiency Regulations.

HI is the Hydronics Institute of the Gas Appliance Manufacturers Association (GAMA).

HI HTG BOILER STANDARD is the Hydronics Institute document entitled “Testing and Rating Standard for Rating Boilers,” 1989.

HIGH-RISE RESIDENTIAL BUILDING is a building, other than a hotel⁄motel, of occupancy Group R, Division 1 with four or more habitable stories.

HOTEL⁄MOTEL is a building or buildings incorporating six or more guest rooms or a lobby serving six or more guest rooms, where the guest rooms are intended or designed to be used, or which are used, rented or hired out to be occupied, or which are occupied for sleeping purposes by guests, and all conditioned spaces within the same building envelope. Hotel⁄motel also includes all conditioned spaces which are (1) on the same property as the hotel⁄motel, (2) served by the same central heating, ventilation and air-conditioning system as the hotel⁄motel, and (3) integrally related to the functioning of the hotel⁄motel as such, including, but not limited to, exhibition facilities, meeting and conference facilities, food service facilities, lobbies and laundries.

HVAC SYSTEM (See “space-conditioning system.”)

IESNA HB (See “IESNA Lighting Handbook.”)

IESNA LIGHTING HANDBOOK is the Illuminating Engineering Society National Association document entitled “The IESNA Lighting Handbook: Reference and Applications, Ninth Edition.” (2000)

INFILTRATION is uncontrolled inward air leakage from outside a building or unconditioned space, including leakage through cracks and interstices, around windows and doors, and through any other exterior or demising partition or pipe or duct penetration.

INTEGRATED PART LOAD VALUE (IPLV) is a single-number figure of merit based on part load EER or COP expressing part load efficiency for air-conditioning and heat pump equipment on the basis of weighted operation at various load capacities for the equipment as determined using the applicable test method in the Appliance Efficiency Regulations or Section 112.

ISO 13256-1 is the International Organization for Standardization document entitled “Water-source heat pumps - Testing and rating for performance - Part 1: Water-to-air and brine-to-air heat pumps,” 1998.

KITCHEN (See residential space type.)

LIGHT EMITTING DIODE (LED) is a pn junction semiconductor device that emits incoherent optical radiation when biased in the forward direction. The acronym “LED” typically refers to an LED Component, LED Device or LED Package.

LISTED is equipment, materials or services included in a list published by an organization that is recognized to have the authority to evaluate and test the equipment, material or services. The organization performs periodic inspection and evaluation to ensure that the listed equipments, material or services meet identified standards or has been tested and found suitable for a specified purpose. The recognized organizations include Underwriters Laboratories (UL) and other nationally recognized testing/rating laboratories.

LOW-RISE RESIDENTIAL BUILDING is a building, other than a hotel/motel that is of Occupancy Group R Division 1, and is multifamily with three stories or less, or a single family residence of Occupancy R, Division 3 or an Occupancy Group U building located on a residential site.

LPG is liquefied petroleum gas.

LUMINAIRE is a complete lighting unit consisting of a lamp(s) and the parts designed to distribute the light, to position and protect the lamp (s), and to connect the lamp (s) to the power supply; commonly referred to as “lighting fixtures.”

MANUAL is capable of being operated by personal intervention.

MANUFACTURED DEVICE is any heating, cooling, ventilation, lighting, water heating, refrigeration, cooking, plumbing fitting, insulation, door, fenestration product or any other appliance, device, equipment or system subject to Sections 110 through 119 of Title 24, Part 6.

MECHANICAL COOLING is lowering the temperature within a space using refrigerant compressors or absorbers, desiccant dehumidifiers or other systems that require energy from depletable sources to directly condition the space. In non-residential, high-rise residential and hotel/motel buildings, cooling of a space by direct or indirect evaporation of water alone is not considered mechanical cooling.

MECHANICAL HEATING is raising the temperature within a space using electric resistance heaters, fossil fuel burners, heat pumps or other systems that require energy from depletable sources to directly condition the space.

METAL BUILDING is a complete integrated set of mutually dependent components and assemblies that form a building, which consists of a steel-framed superstructure and metal skin. This does not include structural glass or metal panels such as in a curtainwall system.

MODELING ASSUMPTIONS are the conditions (such as weather conditions, thermostat settings and schedules, internal gain schedules, etc.)that are used for calculating a building‘s annual energy consumption as specified in the Alternative Calculation Methods Manuals.

MOTION SENSOR, LIGHTING, is a device that automatically turns lights off soon after an area is vacated. The term motion sensor applies to a device that controls outdoor lighting system. When the device is used to control indoor lighting systems, it is termed an occupant sensor. The device also may be called an occupancy sensor, occupant-sensing device or vacancy sensor.

MOVABLE SHADING DEVICE (See “operable shading device.”)

MULTILEVEL LIGHTING CONTROL is a lighting control that reduces lighting power in multiple steps while main-taining a reasonably uniform level of illuminance throughout the area controlled.

MULTISCENE PROGRAMMABLE SYSTEM is a lighting control device that has the capability of setting light levels throughout a continuous range, and that has pre-established settings within the range.

NEWLY CONDITIONED SPACE is any space being converted from unconditioned to directly conditioned or indirectly conditioned space. Newly conditioned space must comply with the requirements for an addition. See Section 149 for nonresidential occupancies and Section 152 for residential occupancies.

NEWLY CONSTRUCTED BUILDING is a building that has never been used or occupied for any purpose.

SECTION 131
INDOOR LIGHTING CONTROLS THAT SHALL BE INSTALLED

1. Outdoor lighting. All permanently installed outdoor luminaires employing lamps rated over 100 watts shall either: have a lamp efficacy of at least 60 lumens per watt; or be controlled by a motion sensor.

   Exception 1 to Section 132(a): Lighting required by a health or life safety statute, ordinance or regulation, including but not limited to, emergency lighting.

   Exception 2 to Section 132(a): Lighting used in or around swimming pools, water features or other locations subject to Article 680 of the California Electrical Code.

   Exception 3 to Section 132(a): Searchlights.

   Exception 4 to Section 132(a): Theme lighting for use in theme parks.

   Exception 5 to Section 132(a): Lighting for film or live performances.

   Exception 6 to Section 132(a): Temporary outdoor lighting.

   Exception 7 to Section 132(a): Light emitting diode, light emitting capacitors, neon and cold cathode lighting.

   Exception 8 to Section 132(a): Sign lighting.

2. Luminaire cutoff requirements. All outdoor luminaires that use lamps rated greater than 175 watts in hardscape areas including parking lots, building entrances, sales and nonsales canopies, and all outdoor sales areas shall be designated Cutoff for light distribution. To comply with this requirement the luminaire shall be rated Cutoff in a photometric test report that includes any tilt or other nonlevel mounting condition of the installed luminaire. Cutoff is a luminaire light distribution classification where the candela per 1000 lamp lumens does not numerically exceed 25 at or above a vertical angle of 90 degrees above nadir, and 100 at or above a vertical angle of 80 degrees above nadir. Nadir is in the direction of straight down, as would be indicated by a plumb line. Ninety degrees above nadir is horizontal. Eighty degrees above nadir is 10 degrees below horizontal.

   Exception 1 to Section 132(b): Signs.

   Exception 2 to Section 132(b): Lighting for building facades, public monuments, statues and vertical surfaces of bridges.

   Exception 3 to Section 132(b): Lighting required by a health or life safety statute, ordinance or regulation, including but not limited to, emergency lighting.

   Exception 4 to Section 132(b): Temporary outdoor lighting.

   Exception 5 to Section 132(b): Lighting used in or around swimming pools, water features or other locations subject to Article 680 of the California Electrical Code.

   Exception 6 to Section 132(b): Replacement of existing pole mounted luminaires in hardscape areas meeting all of the following conditions:

   1. Where the existing luminaire does not meet the luminaire cutoff requirements in Section 132(b); and
   2. Spacing between existing poles is greater than six times the mounting height of the existing luminaires; and
   3. Where no additional poles are being added to the site; and
   4. Where new wiring to the luminaires is not being installed; and 51
   5. Provided that the connected lighting power wattage is not increased.
3. Controls for outdoor lighting
   1. All permanently installed outdoor lighting shall be controlled by a photocontrol or astronomical time switch that automatically turns off the outdoor lighting when daylight is available.

      Exception to Section 132(c)1: Lighting in tunnels and large covered areas that require illumination during daylight hours.

   2. For lighting of building facades, parking lots, sales and nonsales canopies, all outdoor sales areas, and student pick-up/drop-off zones where two or more luminaires are used, an automatic time switch shall be installed that is capable of (1) turning off the lighting when not needed and (2) reducing the lighting power (in watts) by at least 50 percent but not exceeding 80 percent or providing continuous dimming through a range that includes 50 percent through 80 percent reduction. This control shall meet the requirements of Section 119(c).

      Exception 1 to Section 132(c)2: Lighting required by a health or life-safety statute, ordinance or regulation, including but not limited to, emergency lighting.

      Exception 2 to Section 132(c)2: Lighting for steps or stairs that require illumination during daylight hours.

      Exception 3 to Section 132(c)2: Lighting that is controlled by a motion sensor and photocontrol.

      Exception 4 to Section 132(c)2: Lighting for facilities that have equal lighting requirements at all hours and are designed to operate continuously.

      Exception 5 to Section 132(c)2: Temporary outdoor lighting.

      Exception 6 to Section 132(c)2: Signs.