Section 150.0 — California Energy Code (Title 24, Part 6)

MANDATORY FEATURES AND DEVICES

Low-rise residential buildings shall comply with the applica - ble requirements of Sections 150(a) through 150.0(r).

NOTE: The requirements of Sections 150.0(a) through 150.0(r) apply to newly constructed buildings. Sections 150.2(a) and 150.2(b) specify which requirements of Sections 150.0(a) through 150.0(r) also apply to additions or alterations.

(a) Ceiling and rafter roof insulation. The opaque portions of ceilings and roofs separating conditioned spaces from unconditioned spaces or ambient air shall meet the requirements of Items 1 through 3 below:

Shall be insulated to achieve a weighted average U -factor not exceeding U-0.043 or shall be insulated between wood-framing members with insulation resulting in an installed thermal resistance of R-22 or greater for the insulation alone. For vented attics, the mandatory insu - lation shall be installed at the ceiling level; for unvented attics, the mandatory insulation shall be placed at either ceiling or roof level; and

Exception to Section 150.0(a)1: Ceilings and rafter roofs in an alteration shall be insulated to achieve a weighted average U-factor not exceeding 0.054 or shall be insulated between wood-framing members with insulation resulting in an installed thermal resistance of R-19 or greater.

Attic access doors shall have permanently attached insulation using adhesive or mechanical fasteners. The attic access shall be gasketed to prevent air leakage; and
Insulation shall be installed in direct contact with a continuous roof or ceiling which is sealed to limit infiltration and exfiltration as specified in Section 110.7, including but not limited to placing insulation either above or below the roof deck or on top of a drywall ceiling.

(b) Loose-fill insulation. When loose-fill insulation is installed, the minimum installed weight per square foot shall conform with the insulation manufacturer’s installed design weight per square foot at the manufacturer’s labeled R -value.

(c) Wall insulation. Opaqueportions of above grade walls separating conditioned spaces from unconditioned spaces or ambient air shall meet the following requirements:

2 × 4 inch framing shall have an overall assembly U factor not exceeding U-0.102.

Exception to Section 150.0(c)1: Existing walls already insulated to a U -factor not exceeding U-0.110 or already

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outdoor design temperatures for heating shall be no lower than the Heating Winter Median of Extremes values. The outdoor design temperatures for cooling shall be no greater than the 1.0 percent Cooling Dry Bulb and Mean Coincident Wet Bulb values.

Outdoor condensing units.

A. Clearances. Installed air conditioner and heat pump

outdoor condensing units shall have a clearance of at least five (5) feet (1.5 meters) from the outlet of any dryer vent.

B. Liquid line drier. Installed air conditioner and heat

pump systems shall be equipped with liquid line filter driers if required, as specified by manufacturer’s instructions.

Central forced-air heating furnaces.

A. Temperature rise. Central forced-air heating fur nace installations shall be configured to operate in conformance with the furnace manufacturer’s maximum inlet-to-outlet temperature rise specifications.

(i) Thermostats. All heating or cooling systems, including heat pumps, not controlled by a central energy management control system (EMCS) shall have a setback thermostat, as specified in Section 110.2(c).

(j) Water system piping and insulation for piping, and tanks.

Storage tank insulation. Unfired hot water tanks, such as storage tanks and backup storage tanks for solar water-heating systems, shall be externally wrapped with insulation having an installed thermal resistance of R-12 or greater or have internal insulation of at least R16 and a label on the exterior of the tank showing the insulation R -value.
Water piping, solar water-heating system piping, and space conditioning system line insulation thick- ness and conductivity. Piping shall be insulated as follows:

A. All domestic hot water piping shall be insulated as

specified in Section 609.11 of the California Plumb- ing Code . In addition, the following piping conditions shall have a minimum insulation wall thickness of 1 inch or a minimum insulation R-value of 7.7:

i. The first 5 feet (1.5 meters) of cold water pipes

from the storage tank.

ii. All hot water piping with a nominal diameter

equal to or greater than ³ /4 inch (19 millimeter) and less than 1 inch.

iii. All hot water piping with a nominal diameter less

than ³ /4 inch that is:

a. Associated with a domestic hot water recir culation system;

b. From the heating source to the kitchen fix tures;

be installed over concrete slab flooring and the fireplace will not be located on an exterior wall.

A flue damper with a readily accessible control.

Exception to Section 150.0(e)1C: When a gas log, log lighter or decorative gas appliance is installed in a fireplace, the flue damper shall be blocked open if required by the CMC or the manufacturer’s installation instructions.

(f) Slab edge insulation. Material used for slab edge insu - lation shall meet the following minimum specifications:

Water absorption rate for the insulation material alone without facings no greater than 0.3 percent when tested in accordance with Test Method A – 24-Hour-Immersion of ASTM C272.
Water vapor permeance no greater than 2.0 perm/inch when tested in accordance with ASTM E96.
Concrete slab perimeter insulation shall be protected from physical damage and ultraviolet light deterioration.
Insulation for a heated slab floor shall meet the requirements of Section 110.8(g).

(g) Vapor retarder.

In Climate Zones 1–16, the earth floor of unvented crawl space shall be covered with a Class I or Class II vapor retarder. This requirement shall also apply to controlled ventilation crawl space for buildings complying with the Exception to Section 150.0(d).
In Climate Zones 14 and 16, a Class I or Class II vapor retarder shall be installed on the conditioned space side of all insulation in all exterior walls, vented attics and unvented attics with air-permeable insulation.

(h) Space-conditioning equipment.

Building cooling and heating loads. Building heating and cooling loads shall be determined using a method based on any one of the following:

A. The ASHRAE Handbook, Equipment Volume,

Applications Volume and Fundamentals Volume; or

B. The SMACNA Residential Comfort System Instal lation Standards Manual; or

C. The ACCA Manual J.

The cooling and heating loads are two of the criteria that shall be used for equipment sizing and selection.

Note: Heating systems are required to have a minimum heating capacity adequate to meet the minimum requirements of the CBC. The furnace output capacity and other specifications are published in the Commission’s directory of certified equipment or other directories approved by the Commission.

Design conditions. For the purpose of sizing the spaceconditioning (HVAC) system, the indoor design temperatures shall be 68°F for heating and 75°F for cooling. Outdoor design conditions shall be selected from Reference Joint Appendix JA2, which is based on data from the ASHRAE Climatic Data for Region X. The

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iii. Be sealed with a gasket or caulk between the

luminaire housing and ceiling, and have all air leak paths between conditioned and unconditioned spaces sealed with a gasket or caulk; and

iv. For luminaires with hardwired ballasts or drivers,

allow ballast or driver maintenance and replacement to be readily accessible to building occupants from below the ceiling without requiring the cutting of holes in the ceiling; and

v. Shall not contain screw base sockets.

D. Electronic ballasts for fluorescent lamps. Ballasts

for fluorescent lamps rated 13 watts or greater shall be electronic and shall have an output frequency no less than 20 kHz.

E. Night lights, step lights and path lights. Night

lights, step lights and path lights shall not be required to comply with Table 150.0-A or be controlled by vacancy sensors provided they are rated to consume no more than 5 watts of power and emit no more than 150 lumens.

F. Lighting integral to exhaust fans. Lighting integral

to exhaust fans shall meet the applicable requirements of Section 150(k).

Exception to Section 150.0(k)1F: Lighting installed by the manufacturer in kitchen exhaust hoods.

G. Screw based luminaires. Screw based luminaires

shall contain lamps that comply with Reference Joint Appendix JA8.

Exception to Section 150.0(k)1G : Luminaires with hard-wired ballasts for high intensity discharge lamps.

H. Light sources in enclosed or recessed luminaires.

Lamps and other separable light sources that are not compliant with the JA8 elevated temperature requirements, including marking requirements, shall not be installed in enclosed or recessed luminaires.

I. Light sources in drawers, cabinets, and linen

closets. Light sources internal to drawers, cabinetry or linen closets shall not be required 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 power and emit no more than 150 lumens, and are equipped with controls that automatically turn the lighting off when the drawer, cabinet or linen closet is closed.

Interior lighting switching devices and controls.

A. All forward phase cut dimmers used with LED light

sources shall comply with NEMA SSL 7A.

B. Exhaust fans shall be controlled separately from

lighting system.

Exception to Section 150.0(k)2B: Lighting integral to an exhaust fan may be on the same control as the fan provided the lighting can be turned OFF in

c. From the heating source to a storage tank or

between storage tanks; or

d. Buried below grade.

B. Piping for space conditioning systems solar water heating system collector loop, and distribution piping for steam and hydronic heating system, shall meet the requirements of Section 120.3(c).

Exception 1 to Section 150.0(j)2: Factory-installed piping within space-conditioning equipment certified under Section 110.1 or 110.2.

Exception 2 to Section 150.0(j)2: Piping that penetrates framing members shall not be required to have pipe insulation for the distance of the framing penetration. Piping that penetrates metal framing shall use grommets, plugs, wrapping or other insulating material to assure that no contact is made with the metal framing. Insulation shall butt securely against all framing members.

Exception 3 to Section 150.0(j)2: Piping installed in interior or exterior walls shall not be required to have pipe insulation if all of the requirements are met for compliance with quality insulation installation (QII) as specified in the Reference Residential Appendix RA3.5.

Exception 4 to Section 150.0(j)2: Piping surrounded with a minimum of 1 inch of wall insulation, 2 inches of crawlspace insulation, or 4 inches of attic insulation shall not be required to have pipe insulation.

Insulation protection. Pipe insulation shall meet the insulation protection requirements of Section 120.3(b).

(k) Residential lighting.

Luminaire requirements.

A. Luminaire efficacy. All installed luminaires shall

meet the requirements in Table 150.0-A.

B. Blank electrical boxes. The number of electrical

boxes that are more than 5 feet above the finished floor and do not contain a luminaire or other device shall be no greater than the number of bedrooms. These electrical boxes must be served by a dimmer, vacancy sensor control, or fan speed control.

C. Recessed downlight luminaires in ceilings. In

addition to complying with 150.0(k)1A, luminaires recessed into ceilings shall meet all of the following requirements:

i. Be listed, as defined in Section 100.1, for zero

clearance insulation contact (IC) by Underwriters Laboratories or other nationally recognized testing/rating laboratory; and

ii. Have a label that certifies the luminaire is airtight

with air leakage less than 2.0 CFM at 75 Pascals when tested in accordance with ASTM E283. An exhaust fan housing shall not be required to be certified airtight; and

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providing residential outdoor lighting shall meet the following requirements, as applicable:

A. For single-family residential buildings, outdoor

lighting permanently mounted to a residential building or to other buildings on the same lot shall meet the requirement in Item i and the requirements in either Item ii or Item iii:

i. Controlled by a manual ON and OFF switch that

permits the automatic actions of items ii or iii below; and

ii. Controlled by a photocell and either a motion

sensor or an automatic time switch control; or

iii. Controlled by an astronomical time clock control.

Controls that override to ON shall not be allowed unless the override automatically returns the automatic control to its normal operation within 6 hours. An energy management control system that provides the specified lighting control functionality and complies with all requirements applicable to the specified controls may be used to meet these requirements.

B. For low-rise residential buildings with four or more

dwelling units, outdoor lighting for private patios, entrances, balconies, porches; and residential parking lots and carports with less than eight vehicles per site shall comply with either:

i. Section 150.0(k)3A; or

ii. The applicable requirements in Sections 110.9,

130.0, 130.2, 130.4, 140.7 and 141.0.

C. For low-rise residential buildings with four or more

dwelling units, any outdoor lighting for residential parking lots or carports with a total of eight or more vehicles per site and any outdoor lighting not regulated by Section 150.0(k)3B shall comply with the applicable requirements in Sections 110.9, 130.0, 130.2, 130.4, 140.7 and 141.0.

Internally illuminated address signs. Internally illuminated address signs shall either:

A. Comply with Section 140.8; or

B. Consume no more than 5 watts of power.

Residential garages for eight or more vehicles. Lighting for residential parking garages for eight or more vehicles shall comply with the applicable requirements for nonresidential garages in Sections 110.9, 130.0, 130.1, 130.4, 140.6 and 141.0.
Interior common areas of low-rise multifamily resi- dential buildings.

A. In a low-rise multifamily residential building where

the total interior common area in a single building equals 20 percent or less of the floor area, permanently installed lighting for the interior common areas in that building shall comply with Table 150.0A and be controlled by an occupant sensor.

accordance with the applicable provisions in Section 150.0(k)2 while allowing the fan to continue to operate.

C. Lighting shall have readily accessible wall-mounted

controls that allow the lighting to be manually turned ON and OFF.

Exception to Section 150.0(k)2C: Ceiling fans may provide control of integrated lighting via a remote control.

D. Lighting controls and equipment shall be installed in

accordance with the manufacturer’s instructions.

E. No controls shall bypass a dimmer, occupant sensor

or vacancy sensor function where that dimmer or sensor has been installed to comply with Section 150.0(k).

F. Lighting controls shall comply with the applicable

requirements of Section 110.9.

G. An energy management control system (EMCS)

may be used to comply with control requirements in Section 150.0(k) if at a minimum it provides the functionality of the specified controls in accordance with Section 110.9, meets the installation certificate requirements in Section 130.4, meets the EMCS requirements in Section 130.0(e), and complies with all other applicable requirements in Section 150.0(k)2.

H. A multiscene programmable controller may be used

to comply with dimmer requirements in Section 150.0(k) if at a minimum it provides the functionality of a dimmer in accordance with Section 110.9, and complies with all other applicable requirements in Section 150.0(k)2.

I. In bathrooms, garages, laundry rooms, and utility

rooms, at least one luminaire in each of these spaces shall be controlled by an occupant or vacancy sensor providing automatic-off functionality. If an occupant sensor is installed, it shall be initially configured to manual-on operation using the manual control required under Section 150.0(k)2C.

J. Luminaires that are or contain light sources that

meet Reference Joint Appendix JA8 requirements for dimming, and that are not controlled by occupancy or vacancy sensors, shall have dimming controls.

Exception 1 to Section 150.0(k)2J: Luminaires in closets less than 70 square feet.

Exception 2 to Section 150.0(k)2J: Luminaires in hallways.

K. Undercabinet lighting shall be controlled separately

from ceiling-installed lighting such that one can be turned on without turning on the other.

Residential outdoor lighting. In addition to meeting the requirements of Section 150.0(k)1A, luminaires

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D. Openings shall be sealed with mastic, tape or

other duct-closure system that meets the applicable requirements of UL 181, UL181A or UL 181B or aerosol sealant that meets the requirements of UL 723. If mastic or tape is used to seal openings greater than ¹ /4 inch, the combination of mastic and either mesh or tape shall be used.

E. Building cavities, support platforms for air handlers

and plenums designed or constructed with materials other than sealed sheet metal, duct board or flexible duct shall not be used for conveying conditioned air. Building cavities and support platforms may contain ducts. Ducts installed in cavities and support platforms shall not be compressed to cause reductions in the cross-sectional area of the ducts.

Exception to Section 150.0(m)1: Ducts and fans integral to a wood heater or fireplace.

Factory-fabricated duct systems.

A. All factory-fabricated duct systems shall comply

with UL 181 for ducts and closure systems, including collars, connections and splices, and be labeled as complying with UL 181. UL 181 testing may be performed by UL laboratories or a laboratory approved by the Executive Director.

B. All pressure-sensitive tapes, heat-activated tapes and

mastics used in the manufacture of rigid fiberglass ducts shall comply with UL 181 and UL 181A.

C. All pressure-sensitive tapes and mastics used with

flexible ducts shall comply with UL 181 and UL 181B.

D. Joints and seams of duct systems and their compo nents shall not be sealed with cloth-back rubber adhesive duct tapes unless such tape is used in combination with mastic and drawbands.

Field-fabricated duct systems.

A. Factory-made rigid fiberglass and flexible ducts for

field-fabricated duct systems shall comply with UL 181. All pressure-sensitive tapes, mastics, aerosol sealants or other closure systems used for installing field-fabricated duct systems shall meet the applicable requirements of UL 181, UL 181A and UL 181B.

B. Mastic sealants and mesh.

i. Sealants shall comply with the applicable

requirements of UL 181, UL 181A and UL 18IB, and be nontoxic and water resistant.

ii. Sealants for interior applications shall be tested in

accordance with ASTM C731 and D2202 incorporated herein by reference.

iii. Sealants for exterior applications shall be tested

in accordance with ASTM C731, C732 and D2202, incorporated herein by reference.

iv. Sealants and meshes shall be rated for exterior

use.

B. In a low-rise multifamily residential building where

the total interior common area in a single building equals more than 20 percent of the floor area, permanently installed lighting for the interior common areas in that building shall:

i. Comply with the applicable requirements in Sec tions 110.9, 130.0, 130.1, 140.6 and 141.0; and

ii. Lighting installed in corridors and stairwells shall

be controlled by occupant sensors that reduce the lighting power in each space by at least 50 percent. The occupant sensors shall be capable of turning the light fully on and off from all designed paths of ingress and egress.

(l) Reserved.

(m) Air-distribution and ventilation system ducts, ple- nums and fans.

CMC compliance.

A. All air-distribution system ducts and plenums,

including but not limited to, mechanical closets and air-handler boxes, shall meet the requirements of the CMC Sections 601.0, 602.0, 603.0, 604.0, 605.0 and ANSI/SMACNA-006-2006 HVAC Duct Construction Standards Metal and Flexible, 3rd Edition, incorporated herein by reference.

B. Portions of supply-air and return-air ducts and ple nums of a space heating or cooling system shall either be insulated to:

i. a minimum installed level of R-6.0, or

ii. a minimum installed level of R-4.2 when the

duct system is located entirely in conditioned space as confirmed through field verification and diagnostic testing in accordance with the requirements of Reference Residential Appendix RA3.1.4.3.8.

Exception 1 to Section 150.0(m)1B: Portions of the duct system located in wall cavities are not required to be insulated if the following conditions are met:

i. The cavity, duct or plenum is located entirely

inside the building’s thermal envelope as confirmed by visual inspection.

ii. At all locations where portions of non-insu lated cavities, ducts, or plenums make a transition into unconditioned space, the transition shall be air-sealed to prevent air infiltration into the cavity and be insulated to a minimum of R-6 as confirmed by visual inspection.

Exception 2 to Section 150.0(m)1B: Portions of the duct system completely exposed and surrounded by directly conditioned space are not required to be insulated.

C. Connections of metal ducts and the inner core

of flexible ducts shall be mechanically fastened.

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C. Pressure-sensitive tape. Pressure-sensitive tapes

shall comply with the applicable requirements of UL 181, UL 181A and UL 181B.

D. Joints and seams of duct systems and their compo nents shall not be sealed with cloth-back rubber adhesive duct tapes unless such tape is used in combination with mastic and drawbands.

E. Drawbands used with flexible duct.

i. Drawbands shall be either stainless-steel worm drive hose clamps or UV-resistant nylon duct ties.

ii. Drawbands shall have a minimum tensile

strength rating of 150 pounds.

iii. Drawbands shall be tightened as recommended

by the manufacturer with an adjustable tensioning tool.

F. Aerosol-sealant closures.

i. Aerosol sealants shall meet the requirements of

UL 723, and be applied according to manufacturer specifications.

ii. Tapes or mastics used in combination with aero sol sealing shall meet the requirements of this section.

Duct insulation R -value ratings. All duct insulation product R -values shall be based on insulation only (excluding air films, vapor retarder or other duct components) and tested C -values at 75°F mean temperature at the installed thickness, in accordance with ASTM C518 or ASTM C177, incorporated herein by reference, and certified pursuant to Section 110.8.
Duct insulation thickness. The installed thickness of duct insulation used to determine its R -value shall be determined as follows:

A. For duct board, duct liner and factory-made rigid

ducts not normally subjected to compression, the nominal insulation thickness shall be used.

B. For duct wrap, installed thickness shall be assumed

to be 75 percent (25 percent compression) of nominal thickness.

C. For factory-made flexible air ducts, the installed

thickness shall be determined by dividing the difference between the actual outside diameter and nominal inside diameter by two.

Duct labeling. Insulated flexible duct products installed to meet this requirement shall include labels, in maximum intervals of 3 feet, showing the thermal performance R -value for the duct insulation itself (excluding air films, vapor retarders or other duct components), based on the tests in Section 150.0(m)4 and the installed thickness determined by Section 150.0(m)5C.
Backdraft dampers. All fan systems, regardless of volumetric capacity, that exchange air between the building conditioned space and the outside of the building shall be provided with backdraft or automatic

dampers to prevent unintended air leakage through the fan system when the fan system is not operating.

Gravity ventilation dampers. All gravity ventilating systems that serve conditioned space shall be provided with either automatic or readily accessible, manually operated dampers in all openings to the outside except combustion inlet and outlet air openings and elevator shaft vents.
Protection of insulation. Insulation shall be protected from damage, including that due to sunlight, moisture, equipment maintenance and wind, but not limited to the following: Insulation exposed to weather shall be suitable for outdoor service, e.g., protected by aluminum, sheet metal, painted canvas or plastic cover. Cellular foam insulation shall be protected as above or painted with a coating that is water retardant and provides shielding from solar radiation that can cause degradation of the material.
Porous inner core flex duct. Flexible ducts having porous inner cores shall have a non-porous layer or air barrier between the inner core and the outer vapor barrier.
Duct system sealing and leakage testing. When space conditioning systems utilize forced air duct systems to supply conditioned air to an occupiable space, the ducts shall be sealed, as confirmed through field verification and diagnostic testing, in accordance with all applicable procedures specified in Reference Residential Appendix RA3.1, and the leakage compliance criteria specified in Reference Residential Appendix Table RA3.1-2, and conforming to one of the following subsections A, B, or C as applicable:

A. For single-family dwellings and townhouses with

the air-handling unit installed and the ducts connected directly to the air handler, the total leakage of the duct system shall not exceed 5 percent of the nominal system air handler airflow as determined utilizing the procedures in Reference Residential Appendix Section RA3.1.4.3.1.

B. For single-family dwellings and townhouses at the

rough-in stage of construction prior to installation of the dwelling’s interior finishing:

i. Air-handling unit installed.

If the air-handling unit is installed and the ducts are connected directly to the air handler, the total leakage of the duct system shall not exceed 6 percent of the nominal system air handler airflow as determined utilizing the procedures in Reference Residential Appendix Sections RA3.1.4.3.2, RA3.1.4.3.2.1 and RA3.1.4.3.3.

ii. Air-handling unit not yet installed.

If the air-handling unit is not yet installed, the total leakage of the duct system shall not exceed 4 percent of the nominal system air handler airflow as determined utilizing the procedures in Reference Residential Appendix Sections RA3.1.4.3.2, RA3.1.4.3.2.2 and RA3.1.4.3.3.

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in such a manner as to be accessible for regular service by the system owner.

iv. All system air filter installation locations shall be

labeled to disclose the applicable design airflow rate and the maximum allowable clean-filter pressure drop. The labels shall be permanently affixed to the air filter installation location, readily legible, and visible to a person replacing the air filter.

C. Air filter efficiency. The system shall be provided

with air filter(s) having a designated efficiency equal to or greater than MERV 13 when tested in accordance with ASHRAE Standard 52.2, or a particle size efficiency rating equal to or greater than 50 percent in the 0.30-1.0 μm range, and equal to or greater than 85 percent in the 1.0-3.0 μm range when tested in accordance with AHRI Standard 680.

D. Air filter pressure drop. All system shall be pro vided with air-filter(s) that conforms to the applicable maximum allowable clean-filter pressure drop specified in subsections i, ii, iii, or iv below, when tested using ASHRAE Standard 52.2, or as rated using AHRI Standard 680, for the applicable design airflow rate(s) for the system air filter(s).

i. The maximum allowable clean-filter pressure

drop determined by the system design for the nominal two-inch minimum depth air filter required by Section 150.0(m)12Biia, or

ii. A maximum of 25 PA (0.1 inches water)

clean-filter pressure drop shall be allowed for a nominal one-inch depth air filter sized according to Section 150.0(m)12Biib, or

iii.For systems specified in 150.0(m)12Aii, and

150.0(m)12Aiii, the maximum allowable clean filter pressure drop determined by the system design.

iv. If Exception 1 to Section 150.0(m)13B or D is

utilized for compliance with cooling system airflow rate and fan efficacy requirements, the

a. Nominal two-inch minimum depth filter(s)

shall be sized by the system designer, or

b. Nominal one-inch minimum depth filter(s)

shall be allowed if the filter(s) are sized according to Equation 150.0-A, based on a maximum face velocity of 150 ft per minute, and according to the maximum allowable clean-filter pressure drop specified in Section 150.0(m)12Dii.

Aface = Qfilter / Vface (Equation 150.0-A)

where

Aface = air filter face area, the product of air fil ter nominal length x nominal width, ft ² .

Qfilter = design airflow rate for the air filter,

ft ³ /min. Vface = air filter face velocity ≤150, ft/min. iii. All system air filters shall be located and installed

C. For multifamily dwellings with the air-handling unit

installed and the ducts connected directly to the air handler, regardless of duct system location,

i. The total leakage of the duct system shall not

exceed 12 percent of the nominal system air handler airflow as determined utilizing the procedures in Reference Residential Appendix Section RA3.1.4.3.1; or

ii. The duct system leakage to outside shall not

exceed 6 percent of the nominal system air handler airflow as determined utilizing the procedures in Reference Residential Appendix Section RA3.1.4.3.4.

Air filtration.

A. System types specified in subsections i, ii, and iii

shall be provided with air filters in accordance with Sections 150.0(m)12B, 150.0(m)12C, and 150.0(m)12D. System types specified in subsection i shall also comply with Section 150.0(m)12E.

i. Mechanical space conditioning systems that

supply air to an occupiable space through ductwork exceeding 10 feet (3 m) in length.

ii. Mechanical supply-only ventilation systems

that provide outside air to an occupiable space.

iii. The supply side of mechanical balanced venti lation systems, including heat recovery ventilation systems, and energy recovery ventilation systems that provide outside air to an occupiable space.

Exception 1 to Section 150.0(m)12A: Evaporative coolers are exempt from the air filtration requirements in Section 150.0(m)12.

B. System design and installation.

i. The system shall be designed to ensure that all

recirculated air and all outdoor air supplied to the occupiable space is filtered before passing through any system’s thermal conditioning components.

Exception 1 to Section 150.0(m)12Bi: For heat recovery ventilators and energy recovery ventilators the location of the filters required by Section 150.0(m)12 may be downstream of a system thermal conditioning component, provided the system is equipped with ancillary filtration upstream of the system’s thermal conditioning component.

ii. All systems shall be designed to accommodate

the clean-filter pressure drop imposed by the system air filter(s). The design airflow rate and maximum allowable clean-filter pressure drop at the design airflow rate applicable to each air filter shall be determined and reported on labels according to subsection iv below.

Systems specified in Section 150.0(m)12Ai shall be equipped with air filters that meet either subsection a or b below.

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D. Small duct high velocity forced air systems.

Demonstrate, in every control mode, airflow greater than or equal to 250 CFM per ton of nominal cooling capacity through the return grilles, and an airhandling unit fan efficacy less than or equal to 0.62 W/CFM as confirmed by field verification and diagnostic testing in accordance with the procedures given in Reference Residential Appendix RA3.3

Exception 1 to Section 150.0(m)13B and D: Standard ducted systems (without zoning dampers) may comply by meeting the applicable requirements in Table 150.0-B or 150.0-C as confirmed by field verification and diagnostic testing in accordance with the procedures in Reference Residential Appendix Sections RA3.1.4.4 and RA3.1.4.5. The design clean-filter pressure drop requirements specified by Section 150.0(m)12Div for the system air filter(s) shall conform to the requirements given in Tables 150.0-B and 150.0-C.

Exception 2 to Section 150.0(m)13B and D: Multispeed compressor systems or variable speed compressor systems shall verify air flow (cfm/ton) and fan efficacy (Watt/cfm) for system operation at the maximum compressor speed and the maximum air handler fan speed.

Exception 3 to Section 150.0(m)13B: Gas furnace air-handling units manufactured prior to July 3, 2019 shall comply with a fan efficacy value less than or equal to 0.58 w/cfm as confirmed by field verification and diagnostic testing in accordance with the procedures given in Reference Residential Appendix RA3.3.

Exception 1 to Section 150.0(m)13C: Multispeed or variable speed compressor systems, or single speed compressor systems that utilize the performance compliance approach, shall demonstrate compliance with the airflow (cfm/ton) and fan efficacy (Watt/cfm) requirements of Section 150.0(m)13C by operating the system at maximum compressor capacity and system fan speed with all zones calling for conditioning, rather than in every zonal control mode.

Exception 2 to Section 150.0(m)13C: Gas furnace air-handling units manufactured prior to July 3, 2019 shall comply with a fan efficacy value less than or equal to 0.58 w/cfm as confirmed by field verification and diagnostic testing in accordance with the procedures given in Reference Residential Appendix RA3.3.

(n) Water heating system.

Systems using gas or propane water heaters to serve individual dwelling units shall include the following components:

A. A dedicated 125 volt, 20 amp electrical receptacle

that is connected to the electric panel with a 120/240 volt 3 conductor, 10 AWG copper branch circuit,

clean-filter pressure drop for the system air filter shall conform to the requirements given in Table 150.0-B or 150.0-C.

E. Air filter product labeling. Systems described in

150.0(m)12)Ai shall be equipped with air filters that have been labeled by the manufacturer to disclose the efficiency and pressure drop ratings that demonstrate conformance with Sections 150.0(m)12C and 150.0(m)12D. 13. Space conditioning system airflow rate and fan effi- cacy. Space conditioning systems that utilize forced air ducts to supply cooling to an occupiable space shall:

A. Static pressure probe. Have a hole for the place ment of a static pressure probe (HSPP), or a permanently installed static pressure probe (PSPP) in the supply plenum downstream of the air conditioning evaporator coil. The size, location, and labeling of the HSPP or PSPP shall conform to the requirements specified in Reference Residential Appendix RA3.3.1.1 as confirmed by field verification and diagnostic testing; and

Exception to 150.0(m)13A: Systems that cannot conform to the specifications for hole location in Reference Residential Appendix Figure RA3.3-1 shall not be required to provide holes as described in Figure RA3.3-1.

B. Single zone central forced air systems. Demon strate, in every control mode, airflow greater than or equal to 350 CFM per ton of nominal cooling capacity through the return grilles, and an air-handling unit fan efficacy less than or equal to the maximum W/CFM specified in subsections i or ii below. The airflow rate and fan efficacy requirements in this section shall be confirmed by field verification and diagnostic testing in accordance with the procedures given in Reference Residential Appendix RA3.3.

i. 0.45 W/CFM for gas furnace air-handling units.

ii. 0.58 W/CFM for air-handling units that are

not gas furnaces.

C. Zonally controlled central forced air systems.

Zonally controlled central forced air cooling systems shall be capable of simultaneously delivering, in every zonal control mode, an airflow from the dwelling, through the air handler fan and delivered to the dwelling, of greater than or equal to the maximum W/CFM specified in subsections i or ii below. The airflow rate and fan efficacy requirements in this section shall be confirmed by field verification and diagnostic testing in accordance with the applicable procedures specified in Reference Residential Appendix RA3.3.

i. 0.45 W/CFM for gas furnace air-handling units.

ii. 0.58 W/CFM for air-handling units that are

not gas furnaces.

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and 4.1.2 as specified in subsections i, ii, and iii below.

i. Total Required Ventilation Rate [ASHRAE

62.2:4.1.1].

The total required ventilation rate shall be calculated using Equation 150.0-B.

Qtot = 0.03 Afloor + 7.5( Nbr + 1)

(Equation 150.0-B)

where Qtot = total required ventilation rate, cfm Afloor= dwelling-unit floor area, ft ²

Nbr = number of bedrooms (not to be less

than 1)

ii. Effective Annual Average Infiltration Rate.

The effective annual average infiltration rate shall be determined in accordance with subsections a and b:

a. An enclosure leakage rate in cubic feet

per minute at 50 Pa (0.2 inch water) ( Q 50) shall be determined by either subsection 1, or subsection 2 below.

Q 50 shall be calculated based on the conditioned volume of the dwelling unit and a default value for dwelling unit envelope leakage of 2 air changes per hour at 50 PA (0.2 inch water) (2 ACH 50) as specified by equation 150.0-C below.

Q50 = Vdu x 2 ACH 50/60 min

(Equation 150.0-C)

where Q 50 = leakage rate at 50 Pa. Vdu = dwelling unit conditioned

volume, ft ³ . ACH 50= air changes per hour at

50 Pa (0.2 inch water).

If dwelling unit envelope leakage less than 2 ACH 50 is confirmed by field verification and diagnostic testing, Q 50 shall be calculated according to Equation 150.0-D below, using the value for dwelling unit envelope leakage less than 2 ACH 50 verified by the procedures specified in Reference Residential Appendix RA3.8.

Q 50 = Vdu x Verified ACH 50/60 min

(Equation 150.0-D)

where

within 3 feet from the water heater and accessible to the water heater with no obstructions. In addition, all of the following:

i. Both ends of the unused conductor shall be

labeled with the word “spare” and be electrically isolated; and

ii. A reserved single pole circuit breaker space in

the electrical panel adjacent to the circuit breaker for the branch circuit in A above and labeled with the words “Future 240V Use”; and

B. A Category III or IV vent, or a Type B vent with

straight pipe between the outside termination and the space where the water heater is installed; and

C. A condensate drain that is no more than 2 inches

higher than the base of the installed water heater, and allows natural draining without pump assistance; and

D. A gas supply line with a capacity of at least 200,000

Btu/hr.

Water heating recirculation loops serving multiple dwelling units shall meet the requirements of Section 110.3(c)5.
Solar water-heating systems and collectors shall be certified and rated by the Solar Rating and Certification Corporation (SRCC), the International Association of Plumbing and Mechanical Officials, Research and Testing (IAPMO R&T), or by a listing agency that is approved by the executive director.
Instantaneous water heaters with an input rating greater than 6.8 kBTU/hr (2kW) shall meet the requirements of Section 110.3(c)7.

(o) Requirements for ventilation and indoor air qual- ity. All dwelling units shall meet the requirements of ASHRAE Standard 62.2. Ventilation and Acceptable Indoor Air Quality in Residential Buildings subject to the amendments specified in Section 150.0(o)1 below. All dwelling units shall comply with Section 150.0(o)2 below.

Amendments to ASHRAE 62.2 requirements.

A. Window operation is not a permissible method of

providing the dwelling unit ventilation airflow specified in subsections C, E, or F below.

B. Continuous operation of central forced air system air

handlers used in central fan integrated ventilation systems is not a permissible method of providing the dwelling unit ventilation airflow required in Section 4 of ASHRAE Standard 62.2.

C. Single family detached dwelling units, and attached

dwelling units not sharing ceilings or floors with other dwelling units, occupiable spaces, public garages, or commercial spaces shall have mechanical ventilation airflow provided at rates determined in accordance with ASHRAE 62.2 Sections 4.1.1

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LOW-RISE RESIDENTIAL BUILDINGS—MANDATORY FEATURES AND DEVICES

Q50 = leakage rate at 50 Pa. Vdu = dwelling unit conditioned

volume, ft ³ . ACH 50= air changes per hour at

50 Pa (0.2 inch water).

b. The Effective Annual Average Infiltration

Rate ( Qinf ) shall be calculated using Equation 150.0-E [ASHRAE 62.2:4.1.2.1].

Qinf = 0.052 × Q 50 × wsf × [ H/Hr ] ^z

(Equation 150.0-E)

where Qinf = effective annual infiltration rate,

cfm (L/s). Q50 = leakage rate at 50 Pa from equa tion 150.0-C, or equation 150.0D.

wsf = weather and shielding factor

from Table 150.0-D.

H = vertical distance between the

lowest and highest above-grade points within the pressure boundary, ft (m). Hr = reference height, 8.2 ft (2.5 m). z = 0.4 for the purpose of calculating

the Effective Annual Average Infiltration Rate.

iii.Required Mechanical Ventilation Rate

[ASHRAE 62.2:4.1.2]

The Required Mechanical Ventilation Rate ( Qfan ) shall be calculated using Equation 150.0-F. Qfan = Qtot - Φ ( Qinf × Aext )

(Equation 150.0-F)

where Qfan = required mechanical ventilation rate,

cfm (L/s). Qtot = total required ventilation rate, cfm (L/s)

from Equation 150.0-B. Qinf = effective annual average infiltration

rate, cfm (L/s) from Equation 150.0-E. Aext = 1 for single-family detached homes, or

the ratio of exterior envelope surface area that is not attached to garages or other dwelling units to total envelope surface area for attached dwelling units not sharing ceilings or floors with other dwelling units, occupiable spaces, public garages, or commercial spaces. Φ = 1 for balanced ventilation systems and

Qinf/Qtot otherwise.

D. Air filtration shall conform to the specifications in

Section 150.0(m)12. Compliance with ASHRAE 62.2 Sections 6.7 (Minimum Filtration) and 6.7.1 (Filter Pressure Drop) shall not be required.

E. Multifamily attached dwelling units shall have

mechanical ventilation airflow provided at rates in accordance with Equation 150.0-B [ASHRAE 62.2:4.1.1], and comply with one of the following subsections i or ii below. When subsection ii below is utilized for compliance, all dwelling units in the multifamily building shall use the same ventilation system type.

i. A balanced ventilation system shall provide

the required dwelling-unit ventilation airflow, or

ii. Continuously operating supply ventilation

systems, or continuously operating exhaust ventilation systems shall be allowed to be used to provide the required dwelling unit ventilation airflow if the dwelling-unit envelope leakage is less than or equal to 0.3 cubic feet per minute at 50 Pa (0.2 inch water) per ft ² of dwelling unit envelope surface area as confirmed by field verification and diagnostic testing in accordance with the procedures specified in Reference Residential Appendix RA3.8.

F. Multifamily building central ventilation systems that

serve multiple dwelling units shall be balanced to provide ventilation airflow for each dwelling unit served at a rate equal to or greater than the rate specified by Equation 150.0-B [ASHRAE 62.2:4.1.1], but no more than twenty percent greater than the specified rate. These systems shall utilize balancing means to ensure the dwelling-unit airflows can be adjusted to meet this balancing requirement. These system balancing means may include but not be limited to constant air regulation devices, orifice plates, and variable speed central fans.

G. Kitchen range hoods shall be rated for sound in

accordance with Section 7.2 of ASHRAE 62.2.

Exception to Section 150.0(o)1G: Kitchen range hoods may be rated for sound at a static pressure determined at working speed as specified in HVI 916 section 7.2.

H. Compliance with ASHRAE 62.2 Section 6.5.2

(Space Conditioning System Ducts) shall not be required.

I. Compliance with ASHRAE 62.2 Section 4.4 (Con trol and Operation) shall require manual switches associated with dwelling unit ventilation systems to have a label clearly displaying the following text, or equivalent text: “This switch controls the indoor air quality ventilation for the home. Leave it on unless the outdoor air quality is very poor.”

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System piping.

A. A length of straight pipe that is greater than or equal

to at least 4 pipe diameters shall be installed before the pump; and

B. Pool piping shall be sized so that the velocity of the

water at maximum flow for auxiliary pool loads does not exceed 8 feet per second in the return line and 6 feet per second in the suction line; and

C. All elbows shall be sweep elbows or of an elbow type that has a pressure drop of less than the pressure drop of straight pipe with a length of 30 pipe diameters.

Filters. Filters shall be at least the size specified in NSF/ANSI 50 for public pool intended applications.
Valves. Minimum diameter of backwash valves shall be 2 inches or the diameter of the return pipe, whichever is greater.

(q) Fenestration products. Fenestration separating conditioned space from unconditioned space or outdoors shall meet the requirements of either Item 1 or 2 below:

Fenestration, including skylight products, must have a maximum U -factor of 0.58.

Exception 1 to Section 150.0(q)1: Up to 10 square feet of fenestration area or 0.5 percent of the conditioned floor area, whichever is greater, is exempt from the maximum U -factor requirement.

Exception 2 to Section 150.0(q)1: For dual-glazed greenhouse or garden windows, up to 30 square feet of fenestration area is exempt from the maximum U -factor requirement.

The weighted average U -factor of all fenestration, including skylight products shall not exceed 0.58.

(r) Solar ready buildings. shall meet the requirements of Section 110.10 applicable to the building project.

Field verification and diagnostic testing.

A. Airflow performance. The dwelling unit ventila tion airflow required by Sections 150.0(o)1C, 150.0(o)1E, and 150.0(o)1F shall be confirmed through field verification and diagnostic testing in accordance with the applicable procedures specified in Reference Residential Appendix RA3.7.

B. Kitchen Range Hoods . The installed kitchen range

hood shall be field verified in accordance with the procedures in Reference Residential Appendix RA3.7.4.3 to confirm the model is rated by HVI to comply with the following requirements:

i. The minimum ventilation airflow rate as spec ified in Section 5 of ASHRAE 62.2.

ii The maximum sound rating as specified in

Section 150.0(o)1G.

(p) Pool systems and equipment installation. Any residential pool system or equipment installed shall comply with the applicable requirements of Section 114, as well as the requirements listed in this section.

Pump sizing and flow rate.

A. All pumps and pump motors installed shall be listed

in the Commission’s directory of certified equipment and shall comply with the Appliance Efficiency Regulations.

B. All pump flow rates shall be calculated using the

following system equation: H = C × F ²

where:

H is the total system head in feet of water.

F is the flow rate in gallons per minute (gpm).

C is a coefficient based on the volume of the pool:

0.0167 for pools less than or equal to 17,000 gallons.

0.0082 for pools greater than 17,000 gallons.

C. Filtration pumps shall be sized, or if programmable

shall be programmed, so that the filtration flow rate is not greater than the rate needed to turn over the pool water volume in 6 hours or 36 gpm, whichever is greater; and

D. Pump motors used for filtration with a capacity of 1

hp or more shall be multispeed; and

E. Each auxiliary pool load shall be served by either

separate pumps, or the system shall be served by a multispeed pump; and

Exception to Section 150.0(p)1E: Pumps if less than 1 hp may be single speed.

F. Multispeed pumps shall have controls which default

to the filtration flow rate when no auxiliary pool loads are operating; and

G. For multispeed pumps, the controls shall default to

the filtration flow rate setting within 24 hours and shall have an override capability for servicing.

100735044

LOW-RISE RESIDENTIAL BUILDINGS—MANDATORY FEATURES AND DEVICES

TABLE 150.0-A CLASSIFICATION OF HIGH-EFFICACY LIGHT SOURCES

TABLE 150.0-B RETURN DUCT SIZING FOR SINGLE RETURN DUCT SYSTEMS

SYSTEM NOMINAL COOLING CAPACITY (Ton)*	RETURN DUCT MINIMUM NOMINAL DIAMETER (inch)	MINIMUM TOTAL RETURN FILTER GRILLE NOMINAL AREA (inch2)
1.5	16	500
2.0	18	600
2.5	20	800

*Not applicable to systems with nominal cooling capacity greater than 2.5 tons or less than 1.5 ton.

TABLE 150.0-C RETURN DUCT SIZING FOR MULTIPLE RETURN DUCT SYSTEMS
Each return duct length shall not exceed 30 feet and shall contain no more than 180 degrees of bend. If the total bending exceeds 90 degrees, one bend shall be a metal elbow. Return grille devices shall be labeled in accordance with the requirements in Section 150.0(m)12Biv to disclose the grille’s design airflow rate and a maximum allowable clean-filter pressure drop of 12.5 Pa (0.05 inches water) for the air filter when tested using ASHRAE Stan- dard 52.2, or as rated in accordance with AHRI Standard 680 for the design airflow rate for the return grille.
SYSTEM NOMINAL COOLING CAPACITY (Ton)*	RETURN DUCT 1 MINIMUM NOMINAL DIAMETER (inch)	RETURN DUCT 2 MINIMUM NOMINAL DIAMETER (inch)	MINIMUM TOTAL RETURN FILTER GRILLE NOMINAL AREA (inch2)
1.5	12	10	500
2.0	14	12	600
2.5	14	14	800
3.0	16	14	900
3.5	16	16	1000
4.0	18	18	1200
5.0	20	20	1500

*Not applicable to systems with nominal cooling capacity greater than 5.0 tons or less than 1.5 tons.

150 2019 CALIFORNIA ENERGY CODE

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LOW-RISE RESIDENTIAL BUILDINGS—MANDATORY FEATURES AND DEVICES

TABLE 150.0-D INFILTRATION EFFECTIVENESS WEATHER AND SHIELDING FACTORS [ASHRAE 62.2:TABLE B1]

TMY3	WSF	WEATHER STATION	LATITUDE	LONGITUDE	STATE
690150	0.50	Twentynine Palms	34.30	–116.17	California
722860	0.43	March AFB	33.90	–117.25	California
722868	0.45	Palm Springs Intl	33.83	–116.50	California
722869	0.42	Riverside Muni	33.95	–117.45	California
722880	0.39	Burbank–Glendale–Pasadena AP	34.20	–118.35	California
722885	0.39	Santa Monica Muni	34.02	–118.45	California
722886	0.39	Van Nuys Airport	34.22	–118.48	California
722895	0.55	Lompoc (AWOS)	34.67	–120.47	California
722897	0.51	San Luis Co Rgnl	35.23	–120.63	California
722899	0.45	Chino Airport	33.97	–117.63	California
722900	0.38	San Diego Lindbergh Field	32.73	–117.17	California
722903	0.39	San Diego/Montgomery	32.82	–117.13	California
722904	0.40	Chula Vista Brown Field NAAS	32.58	–116.98	California
722906	0.39	San Diego North Island NAS	32.70	–117.20	California
722926	0.40	Camp Pendleton MCAS	33.30	–117.35	California
722927	0.38	Carlsbad/Palomar	33.13	–117.28	California
722930	0.39	San Diego Miramar NAS	32.87	–117.13	California
722950	0.42	Los Angeles Intl Arpt	33.93	–118.40	California
722956	0.38	Jack Northrop Fld H	33.92	–118.33	California
722970	0.38	Long Beach Daugherty Fld	33.83	–118.17	California
722976	0.34	Fullerton Municipal	33.87	–117.98	California
722977	0.36	Santa Ana John Wayne AP	33.68	–117.87	California
723805	0.51	Needles Airport	34.77	–114.62	California
723810	0.59	Edwards AFB	34.90	–117.87	California
723815	0.58	Daggett Barstow–Daggett AP	34.85	–116.80	California
723816	0.62	Lancaster Gen Wm Fox Field	34.73	–118.22	California
723820	0.57	Palmdale Airport	34.63	–118.08	California
723830	0.68	Sandberg	34.75	–118.72	California
723840	0.43	Bakersfield Meadows Field	35.43	–119.05	California
723890	0.45	Fresno Yosemite Intl AP	36.78	–119.72	California
723895	0.42	Porterville (AWOS)	36.03	–119.07	California
723896	0.43	Visalia Muni (AWOS)	36.32	–119.40	California
723910	0.45	Point Mugu Nf	34.12	–119.12	California
723925	0.44	Santa Barbara Municipal AP	34.43	–119.85	California
723926	0.43	Camarillo (AWOS)	34.22	–119.08	California
723927	0.45	Oxnard Airport	34.20	–119.20	California
723940	0.52	Santa Maria Public Arpt	34.92	–120.47	California

(continued)

100735044

LOW-RISE RESIDENTIAL BUILDINGS—MANDATORY FEATURES AND DEVICES

TABLE 150.0-D—continued INFILTRATION EFFECTIVENESS WEATHER AND SHIELDING FACTORS [ASHRAE 62.2:TABLE B1]

TMY3	WSF	WEATHER STATION	LATITUDE	LONGITUDE	STATE
723965	0.53	Paso Robles Municipal Arpt	35.67	–120.63	California
724800	0.55	Bishop Airport	37.37	–118.35	California
724815	0.46	Merced/Macready Fld	37.28	–120.52	California
724830	0.51	Sacramento Executive Arpt	38.50	–121.50	California
724837	0.45	Beale AFB	39.13	–121.43	California
724838	0.50	Yuba Co	39.10	–121.57	California
724839	0.51	Sacramento Metropolitan AP	38.70	–121.58	California
724915	0.49	Monterey Naf	36.60	–121.87	California
724917	0.54	Salinas Municipal AP	36.67	–121.60	California
724920	0.50	Stockton Metropolitan Arpt	37.90	–121.23	California
724926	0.47	Modesto City–County AP	37.63	–120.95	California
724927	0.53	Livermore Municipal	37.70	–121.82	California
724930	0.54	Oakland Metropolitan Arpt	37.72	–122.22	California
724935	0.47	Hayward Air Term	37.67	–122.12	California
724936	0.53	Concord–Buchanan Field	38.00	–122.05	California
724940	0.60	San Francisco Intl AP	37.62	–122.40	California
724945	0.48	San Jose Intl AP	37.37	–121.93	California
724955	0.55	Napa Co. Airport	38.22	–122.28	California
724957	0.49	Santa Rosa (AWOS)	38.52	–122.82	California
725845	0.44	Blue Canyon AP	39.30	–120.72	California
725846	0.66	Truckee–Tahoe	39.32	–120.13	California
725847	0.64	South Lake Tahoe	38.90	–120.00	California
725905	0.47	Ukiah Municipal AP	39.13	–123.20	California
725910	0.50	Red Bluff Municipal Arpt	40.15	–122.25	California
725920	0.47	Redding Municipal Arpt	40.52	–122.32	California
725945	0.56	Arcata Airport	40.98	–124.10	California
725946	0.60	Crescent City Faa Ai	41.78	–124.23	California
725955	0.55	Montague Siskiyou County AP	41.78	–122.47	California
725958	0.59	Alturas	41.50	–120.53	California
745090	0.45	Mountain View Moffett Fld NAS	37.40	–122.05	California
745160	0.67	Travis Field AFB	38.27	–121.93	California
746120	0.52	China Lake Naf	35.68	–117.68	California
747020	0.50	Lemoore Reeves NAS	36.33	–119.95	California
747185	0.46	Imperial	32.83	–115.58	California
747187	0.46	Palm Springs Thermal AP	33.63	–116.17	California
747188	0.48	Blythe Riverside Co Arpt	33.62	–114.72	California

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.

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SUBCHAPTER 8

LOW-RISE RESIDENTIAL BUILDINGS—PERFORMANCE

AND PRESCRIPTIVE COMPLIANCE APPROACHES