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2022 Single-Family Residential Mandatory Requirements Summary <br /> <br />5/6/22 <br /> <br />§ 150.0(k)1G: Screw based luminaires. Screw based luminaires must contain lamps that comply with Reference Joint Appendix JA8. * <br /> <br />§ 150.0(k)1H: <br />Light Sources in Enclosed or Recessed Luminaires. Lamps and other separable light sources that are not compliant with the JA8 <br />elevated temperature requirements, including marking requirements, must not be installed in enclosed or recessed luminaires. <br /> <br />§ 150.0(k)1I: <br />Light Sources in Drawers, Cabinets, and Linen Closets. Light sources internal to drawers, cabinetry or linen closets are not required <br />to comply with Table 150.0-A or be controlled by vacancy sensors provided that they are rated to consume no more than 5 watts of <br />power, emit no more than 150 lumens, and are equipped with controls that automatically turn the lighting off when the drawer, cabinet or <br />linen closet is closed. <br />§ 150.0(k)2A: Interior Switches and Controls. All forward phase cut dimmers used with LED light sources must comply with NEMA SSL 7A. <br />§ 150.0(k)2B: Interior Switches and Controls. Exhaust fans must be controlled separately from lighting systems. * <br />§ 150.0(k)2A: <br />Accessible Controls. Lighting must have readily accessible wall-mounted controls that allow the lighting to be manually turned <br />on and off. * <br />§ 150.0(k)2B: <br />Multiple Controls. Controls must not bypass a dimmer, occupant sensor, or vacancy sensor function if the dimmer or sensor is installed <br />to comply with § 150.0(k). <br />§ 150.0(k)2C: Mandatory Requirements. Lighting controls must comply with the applicable requirements of § 110.9. <br /> <br />§ 150.0(k)2D: <br />Energy Management Control Systems. An energy management control system (EMCS) may be used to comply with dimming, <br />occupancy, and control requirements if it provides the functionality of the specified control per § 110.9 and the physical controls specified <br />in § 150.0(k)2A. <br /> <br />§ 150.0(k)2E: <br />Automatic Shutoff Controls. In bathrooms, garages, laundry rooms, utility rooms and walk-in closets, at least one installed luminaire <br />must be controlled by an occupancy or vacancy sensor providing automatic-off functionality. Lighting inside drawers and cabinets with <br />opaque fronts or doors must have controls that turn the light off when the drawer or door is closed. <br />§ 150.0(k)2F: <br />Dimmers. Lighting in habitable spaces (e.g., living rooms, dining rooms, kitchens, and bedrooms) must have readily accessible wall- <br />mounted dimming controls that allow the lighting to be manually adjusted up and down. Forward phase cut dimmers controlling LED light <br />sources in these spaces must comply with NEMA SSL 7A. <br />§ 150.0(k)2K: Independent controls. Integrated lighting of exhaust fans shall be controlled independently from the fans. Lighting under cabinets or <br />shelves, lighting in display cabinets, and switched outlets must be controlled separately from ceiling-installed lighting. <br /> <br />§ 150.0(k)3A: <br />Residential Outdoor Lighting. For single-family residential buildings, outdoor lighting permanently mounted to a residential building, or to <br />other buildings on the same lot, must have a manual on/off switch and either a photocell and motion sensor or automatic time switch <br />control) or an astronomical time clock. An energy management control system that provides the specified control functionality and meets all <br />applicable requirements may be used to meet these requirements. <br />§ 150.0(k)4: <br />Internally illuminated address signs. Internally illuminated address signs must either comply with § 140.8 or consume no more than 5 <br />watts of power. <br />§ 150.0(k)5: <br />Residential Garages for Eight or More Vehicles. Lighting for residential parking garages for eight or more vehicles must comply with the <br />applicable requirements for nonresidential garages in §§ 110.9, 130.0, 130.1, 130.4, 140.6, and 141.0. <br />Solar Readiness: <br /> <br />§ 110.10(a)1: <br />Single-family Residences. Single-family residences located in subdivisions with 10 or more single-family residences and where the <br />application for a tentative subdivision map for the residences has been deemed complete and approved by the enforcement agency, <br />which do not have a photovoltaic system installed, must comply with the requirements of § 110.10(b)-(e). <br /> <br /> <br /> <br /> <br />§110.10(b)1A: <br />Minimum Solar Zone Area. The solar zone must have a minimum total area as described below. The solar zone must comply with <br />access, pathway, smoke ventilation, and spacing requirements as specified in Title 24, Part 9 or other parts of Title 24 or in any <br />requirements adopted by a local jurisdiction. The solar zone total area must be comprised of areas that have no dimension less than 5 <br />feet and are no less than 80 square feet each for buildings with roof areas less than or equal to 10,000 square feet or no less than 160 <br />square feet each for buildings with roof areas greater than 10,000 square feet. For single-family residences, the solar zone must be <br />located on the roof or overhang of the building and have a total area no less than 250 square feet. * <br />§ 110.10(b)2: Azimuth. All sections of the solar zone located on steep-sloped roofs must have an azimuth between 90-300° of true north. <br />§ 110.10(b)3A: <br />Shading. The solar zone must not contain any obstructions, including but not limited to: vents, chimneys, architectural features, and roof <br />mounted equipment. * <br /> <br />§ 110.10(b)3B: <br />Shading. Any obstruction located on the roof or any other part of the building that projects above a solar zone must be located at least twice the <br />horizontal distance of the height difference between the highest point of the obstruction and the horizontal projection of the nearest point of the <br />solar zone, measured in the vertical plane. * <br />§ 110.10(b)4: <br />Structural Design Loads on Construction Documents. For areas of the roof designated as a solar zone, the structural design loads for <br />roof dead load and roof live load must be clearly indicated on the construction documents. <br /> <br />§ 110.10(c): <br />Interconnection Pathways. The construction documents must indicate: a location reserved for inverters and metering equipment and a <br />pathway reserved for routing of conduit from the solar zone to the point of interconnection with the electrical service; and for single-family <br />residences and central water-heating systems, a pathway reserved for routing plumbing from the solar zone to the water-heating system. <br />§ 110.10(d): <br />Documentation. A copy of the construction documents or a comparable document indicating the information from § 110.10(b)-(c) must be <br />provided to the occupant. <br />§ 110.10(e)1: Main Electrical Service Panel. The main electrical service panel must have a minimum busbar rating of 200 amps. <br />§ 110.10(e)2: Main Electrical Service Panel. The main electrical service panel must have a reserved space to allow for the installation of a double pole <br />circuit breaker for a future solar electric installation. The reserved space must be permanently marked as “For Future Solar Electric.” <br />Electric and Energy Storage Ready: <br />1925 E Fruit St <br />2/26/2025