Section 150.2 — California Energy Code (Title 24, Part 6)

ENERGY EFFICIENCY STANDARDS FOR ADDITIONS AND ALTERATIONS TO EXISTING LOW-RISE RESIDENTIAL BUILDINGS

(a) Additions. Additions to existing low-rise residential buildings shall meet the requirements of Sections 110.0 through 110.9, Sections 150.0(a) through (q), and either Section 150.2(a)1 or 2.

Exception 1 to Section 150.2(a): Additions 1,000 square feet or less are exempt from the requirements to provide dwelling unit mechanical ventilation airflow as specified by Section 150.0(o)1C, 150.0(o)1E, or 150.0(o)1F; however, all other applicable requirements specified by Section 150.0(o) shall be met by the addition.

Exception 2 to Section 150.2(a): Additions of 300 square feet or less are exempt from the roofing requirements of Section 150.1(c)11.

Exception 3 to Section 150.2(a): Existing inaccessible piping shall not require insulation as defined under Section 150.0(j)2A iii.

Exception 4 to Section 150.2(a): Space-conditioning system. When heating or cooling will be extended to an addition from the existing system(s), the existing heating and cooling equipment need not comply with Part 6. The heating system capacity must be adequate to meet the minimum requirements of CBC Section 1204.1.

Exception 5 to Section 150.2(a): Space-conditioning system ducts. When ducts are extended from an existing duct system to serve the addition, the existing duct system and the extended ducts shall meet the applicable requirements specified in Section 150.2(b)1D.

Exception 6 to Section 150.2(a): Additions 1,000 square feet or less are exempt from the ventilation cooling requirements of Section 150.1(c)12.

Exception 7 to Section 150.2(a): Photovoltaic systems, as specified in Section 150.1(c)14, are not required for additions.

Prescriptive approach. Additions to existing buildings shall meet the following additional requirements:

A. Additions that are greater than 700 square feet shall

meet the requirements of Section 150.1(c), with the following modifications:

i. Extensions of existing wood-framed walls may retain the dimensions of the existing walls and shall install cavity insulation of R-15 in a 2 × 4 framing and R-19 in a 2 × 6 framing.

ii. The maximum allowed fenestration area shall be the greater of 175 square feet or 20 percent

Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.

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are exempt from showing compliance with Section 150.0(c).

C. Mechanical ventilation for indoor air quality.

i. Additions to an existing dwelling unit that increase

the conditioned floor area of the existing dwelling unit by more than 1,000 square feet shall have mechanical ventilation airflow in accordance with Section 150.0(o)1C, 150.0(o)1E, or 150.0(o)1F as applicable. The mechanical ventilation airflow rate shall be based on the conditioned floor area of the entire dwelling unit comprised of the existing dwelling unit conditioned floor area plus the addition conditioned floor area.

ii. New dwelling units that are additions to an exist ing building shall have mechanical ventilation airflow provided in accordance with Section 150.0(o)1C, 150.0(o)1E, or 150.0(o)1F as applicable. The mechanical ventilation airflow rate shall be based on the conditioned floor area of the new dwelling unit.

(b) Alterations. Alterations to existing low-rise residential buildings or alterations in conjunction with a change in building occupancy to a low-rise residential occupancy shall meet either Item 1 or 2 below.

Prescriptive approach. The altered component and any newly installed equipment serving the alteration shall meet the applicable requirements of Sections 110.0 through 110.9, all applicable requirements of Sections 150.0(a) through (l), 150.0(m)1 through 150.0 (m)10, and 150.0(o) through (q); and

A. Fenestration. Alterations that add vertical fenestra tion and skylight area shall meet the total fenestration area and west facing fenestration area, U -factor, and solar heat gain coefficient requirements of Section 150.1(c) and Table 150.1-A or B.

Exception 1 to Section 150.2(b)1A: Alterations that add fenestration area of up to 75 square feet shall not be required to meet the total fenestration area and west-facing fenestration area requirements of Section 150.1(c)3B and C.

Exception 2 to Section 150.2(b)1A: Alterations that add up to 16 square feet of new skylight area with a maximum U -factor of 0.55 and a maximum SHGC of 0.30 area shall not be required to meet the total fenestration area and west-facing fenestration area requirements of Sections 150.1(c)3B and C.

B. Replacement fenestration. New manufactured fen estration products installed to replace existing fenestration products of the same total area shall meet the U-factor and Solar Heat Gain Coefficient requirements of Sections 150.1(c)3A, and 150.1(c)4

Exception 1 to Section 150.2(b)1B: Replacement of vertical fenestration no greater than 75 square feet with a U -factor no greater than 0.40 in Climate

framing shall be installed and continuous insulation is not required.

Exception to Section 150.2(a)1B: Insulation in an enclosed rafter ceiling shall meet the requirements of Section 150.0.

C. Mechanical ventilation for indoor air quality.

i. Additions to an existing dwelling unit that increase

the conditioned floor area of the existing dwelling unit by more than 1,000 square feet shall have mechanical ventilation airflow in accordance with Sections 150.0(o)1C, 150.0(o)1E, or 150.0(o)1F as applicable. The mechanical ventilation airflow rate shall be based on the conditioned floor area of the entire dwelling unit comprised of the existing dwelling unit conditioned floor area plus the addition conditioned floor area.

ii. New dwelling units that are additions to an existing

building shall have mechanical ventilation airflow provided in accordance with Section 150.0(o)1C, 150.0(o)1E, or 150.0(o)1F as applicable. The mechanical ventilation airflow rate shall be based on the conditioned floor area of the new dwelling unit.

D. Water heater. When a second water heater is

installed as part of the addition, one of the following types of water heaters shall be installed:

i. A water-heating system that meets the require ments of Section 150.1(c)8; or

ii. A water-heating system determined by the execu tive director to use no more energy than the one specified in Item i.

Performance approach. Performance calculations shall meet the requirements of Section 150.1(a) through (c), pursuant to the applicable requirements in Items A, B and C below.

A. For additions alone. The addition complies if the

addition alone meets the energy budgets as specified in Section 150.1(b).

B. Existing plus alteration plus addition. The stan dard design for existing plus alteration plus addition energy use is the combination of the existing building’s unaltered components to remain; existing building altered components that are the more efficient, in TDV energy, of either the existing conditions or the requirements of Section 150.2(b)2; plus the proposed addition’s energy use meeting the requirements of Section 150.2(a)1. The proposed design energy use is the combination of the existing building’s unaltered components to remain and the altered components’ energy features, plus the proposed energy features of the addition.

Exception to Section 150.2(a)2B: Existing structures with a minimum R-11 insulation in framed walls showing compliance with Section 150.2(a)2

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altered existing duct systems as specified in the Reference Residential Appendix Section RA3.1, utilizing the leakage compliance criteria specified in Subsection a or b below:

a. Entirely new or complete replacement duct

system. If the new ducts form an entirely new or complete replacement duct system directly connected to the air handler, the duct system shall meet one of the following requirements:

I. For single-family dwellings, the measured

duct leakage shall be equal to or less than 5 percent of the system air handler airflow as confirmed by field verification and diagnostic testing utilizing the procedures in Reference Residential Appendix Section RA3.1.4.3.1.

II. For multifamily dwellings, regardless of

duct system location,

A. 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

B. 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.

Entirely new or complete replacement duct systems installed as part of an alteration shall be constructed of at least 75 percent new duct material, and up to 25 percent may consist of reused parts from the dwelling unit’s existing duct system, including but not limited to, registers, grilles, boots, air handler, coil, plenums, duct material, if the reused parts are accessible and can be sealed to prevent leakage.

Entirely new or complete replacement duct systems shall also conform to the requirements of Sections 150(m)12 and 150(m)13.

b. Extension of an existing duct system. If the

new ducts are an extension of an existing duct system serving single-family or multifamily dwellings, the combined new and existing duct system shall meet one of the following requirements:

I. The measured duct leakage shall be equal to or less than 15 percent of nominal system air handler airflow as confirmed by field verification and diagnostic testing utilizing the procedures in Reference Residential Appendix Section RA3.1.4.3.1; or

II. The measured duct leakage to outside shall be equal to or less than 10 percent of

Zones 1–16, and a SHGC value no greater than 0.35 in Climate Zones 2, 4 and 6–15.

Exception 2 to Section 150.2(b)1B: Replaced skylights must meet a U -factor no greater than 0.55, and a SHGC value no greater than 0.30.

Note: Glass replaced in an existing sash and frame or sashes replaced in an existing frame are considered repairs, provided that the replacement is at least equivalent to the original in performance.

C. Entirely new or complete replacement space-

conditioning systems installed as part of an alteration, shall include all the system heating or cooling equipment, including but not limited to condensing unit and cooling or heating coil for split systems; or complete replacement of a package unit; plus entirely new or replacement duct system (Section 150.2(b)1Diia); plus a new or replacement air handler.

Entirely new or complete replacement space-conditioning systems shall:

i. Meet the requirements of Sections 150.0(h),

150.0(i), 150.0(j)2, 150.0(j)3, 150.0(m)1 through 150.0(m)10, 150.0(m)12, 150.0(m)13, 150.1(c)6, 150.1(c)7 and 150.1(c)10, and Table 150.2-A; and

ii. Be limited to natural gas, liquefied petroleum gas

or the existing fuel type.

Exception to Section 150.2(b)1Cii: When the fuel type of the replaced heating system was natural gas or liquefied petroleum gas, the new or complete replacement space-conditioning system may be a heat pump.

D. Altered duct systems—duct sealing. In all climate

zones when more than 40 feet of new or replacement space-conditioning system ducts are installed, the ducts shall comply with the applicable requirements of Subsections i and ii below. Additionally, when altered ducts, air-handling units, cooling or heating coils, or plenums are located in garage spaces, the system shall comply with Subsection 150.2(b)1Diic regardless of the length of any new or replacement space-conditioning ducts installed in the garage space.

i. New ducts located in unconditioned space shall

meet the applicable requirements of Sections 150.0(m)1 through 150.0(m)11, and the duct insulation requirements of Table 150.2-A; and

TABLE 150.2-A¶

DUCT INSULATION R -VALUE

Climate Zone	1 through 10, 12 &13	11, 14 through 16
DuctR-Value	R-6	R-8

ii. The altered duct system, regardless of location,

shall be sealed as confirmed through field verification and diagnostic testing in accordance with all applicable procedures for duct sealing of

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determined utilizing the procedures in Reference Residential Appendix Section RA3.1.4.3.1; or

ii. The measured duct leakage to outside shall be

equal to or less than 10 percent of system air handler airflow as determined utilizing the procedures in Reference Residential Appendix Section RA3.1.4.3.4; or

iii. If it is not possible to meet the duct sealing

requirements of either Section 150.2(b)1Ei or 150.2(b)1Eii, then all accessible leaks shall be sealed and verified through a visual inspection and a smoke test by a certified HERS Rater utilizing the methods specified in Reference Residential Appendix Section RA3.1.4.3.5.

Exception 1 to Section 150.2(b)1E: Duct seal- ing. Duct systems that are documented to have been previously sealed as confirmed through field verification and diagnostic testing in accordance with procedures in the Reference Residential Appendix Section RA3.1.

Exception 2 to Section 150.2(b)1E: Duct seal- ing. Duct systems with less than 40 linear feet as determined by visual inspection.

Exception 3 to Section 150.2(b)1E: Duct seal- ing. Existing duct systems constructed, insulated or sealed with asbestos.

F. Altered space-conditioning system—mechanical

cooling. When a space-conditioning system is an air conditioner or heat pump that is altered by the installation or replacement of refrigerant-containing system components such as the compressor, condensing coil, evaporator coil, refrigerant metering device or refrigerant piping, the altered system shall comply with the following requirements:

i. All thermostats associated with the system shall

be replaced with setback thermostats meeting the requirements of Section 110.2(c).

ii. In Climate Zones 2, 8, 9, 10, 11, 12, 13, 14 and

15, air-cooled air conditioners and air-source heat pumps, including but not limited to ducted split systems, ducted package systems, small duct high-velocity air systems, and minisplit systems shall comply with Subsections a and b, unless the system is of a type that cannot be verified using the specified procedures. Systems that cannot comply with the requirements of Section 150.2(b)1Fii shall comply with Section 150.2(b)1Fiii.

Exception to Section 150.2(b)1Fii: Entirely new or complete replacement packaged systems for which the manufacturer has verified correct system refrigerant charge prior to shipment from the factory are not required to have refrigerant charge confirmed through field verification and diagnostic testing. The installer of these packaged systems shall certify on the Certificate of Installation that the

nominal system air handler airflow as confirmed by field verification and diagnostic testing utilizing the procedures in Reference Residential Appendix Section RA3.1.4.3.4; or

III. If it is not possible to meet the duct seal ing requirements of either Section 150.2(b)1DiibI or 150.2(b)1DiibII, then all accessible leaks shall be sealed and verified through a visual inspection and a smoke test by a certified HERS Rater utilizing the methods specified in Reference Residential Appendix Section RA3.1.4.3.5.

Exception to Section 150.2(b)1Diib: Duct sealing. Existing duct systems that are extended, which are constructed, insulated or sealed with asbestos.

c. Altered ducts and duct system components

in garage spaces. When new or replacement space-conditioning ducts, air-handling units, cooling or heating coils, or plenums are located in a garage space, compliance with either I or II below is required.

I. The measured system duct leakage shall be

less than or equal to 6 percent of system air handler airflow as determined utilizing the procedures in Reference Residential Appendix Section RA3.1.4.3.1; or

II. All accessible leaks located in the garage

space shall be sealed and verified through a visual inspection and a smoke test by a certified HERS Rater utilizing the methods specified in Reference Residential Appendix RA3.1.4.3.5.

E. Altered space-conditioning system—duct sealing.

In all climate zones, when a space-conditioning system serving a single-family or multifamily dwelling is altered by the installation or replacement of spaceconditioning system equipment, including replacement of the air handler, outdoor condensing unit of a split system air conditioner or heat pump, or cooling or heating coil, the duct system that is connected to the altered space-conditioning system equipment shall be sealed, as confirmed through field verification and diagnostic testing in accordance with the applicable procedures for duct sealing of altered existing duct systems as specified in Reference Residential Appendix Section RA3.1, and the leakage compliance criteria specified in Subsection i, ii, or iii below. Additionally, when altered ducts, air-handling units, cooling or heating coils, or plenums are located in garage spaces, the system shall comply with Section 150.2(b)1Diic regardless of the length of any new or replacement space-conditioning ducts installed in the garage space.

i. The measured duct leakage shall be equal to or less

than 15 percent of system air handler airflow as

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specified in Reference Residential Appendix Section RA3.2.2, or an approved alternative procedure as specified in Section RA1; or

The system shall be equipped with a fault indicator display (FID) device that meets the specifications of Reference Joint Appendix JA6. The installer shall verify the refrigerant charge and FID device in accordance with the procedures in Reference Residential Appendix Section RA3.4.2. The HERS Rater shall verify FID device in accordance with the procedures in Section RA3.4.2; or
The installer shall perform the weigh-in charging procedure as specified by Reference Residential Appendix Section RA3.2.3.1, provided the system is of a type that can be verified using the Section RA3.2.2 standard charge verification procedure and Section RA3.3 airflow rate verification procedure or approved alternatives in Section RA1. The HERS Rater shall verify the charge using Sections RA3.2.2 and RA3.3 or approved alternatives in Section RA1.

Exception to Section 150.2(b)1Fiib: When the outdoor temperature is less than 55°F and the installer utilizes the weigh-in charging procedure in Reference Residential Appendix Section RA3.2.3.1 to demonstrate compliance, the installer may elect to utilize the HERS Rater verification procedure in Reference Residential Appendix Section RA3.2.3.2. If the HERS Rater verification procedure in Section RA3.2.3.2 is used for compliance, the system’s thermostat shall conform to the specifications in Section 110.12. Ducted systems shall comply with the minimum system airflow rate requirements in Section 150.2(b)1Fiia.

iii. In Climate Zones 2, 8, 9, 10, 11, 12, 13, 14 and

15, air-cooled air conditioners or air-source heat pumps, including but not limited to ducted split systems, ducted package systems, small duct high-velocity, and minisplit systems, which are of a type that cannot comply with the requirements of 150.2(b)1Fiib shall comply with Subsections a and b, as applicable.

a. The installer shall confirm the refrigerant

charge using the weigh-in charging procedure specified in Reference Residential Appendix Section RA3.2.3.1, as verified by a HERS

packaged system was pre-charged at the factory and has not been altered in a way that would affect the charge. Ducted systems shall comply with minimum system airflow rate requirement in Section 150.2(b)1Fiia, provided that the system is of a type that can be verified using the procedure specified in Section RA3.3 or an approved alternative in Section RA1.

a. Minimum system airflow rate shall comply

with the applicable Subsection I or II below as confirmed through field verification and diagnostic testing in accordance with the procedures specified in Reference Residential Appendix Section RA3.3 or an approved alternative procedure as specified in Section RA1.

Small duct high-velocity systems shall demonstrate a minimum system airflow rate greater than or equal to 250 cfm per ton of nominal cooling capacity; or
All other air-cooled air conditioner or airsource heat pump systems shall demonstrate a minimum system airflow rate greater than or equal to 300 cfm per ton of nominal cooling capacity; and

Exception 1 to Section 150.2(b)1Fiia: Systems unable to comply with the minimum airflow rate requirement shall demonstrate compliance using the procedures in Section RA3.3.3.1.5; and the system’s thermostat shall conform to the specifications in Section 110.12.

Exception 2 to Section 150.2(b)1Fiia: Entirely new or complete replacement space conditioning systems, as specified by Section 150.2(b)1C, without zoning dampers may comply with the minimum airflow rate 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 of Section 150.0(m)12C for the system air filter device(s) shall conform to the requirements given in Tables 150.0-B and 150.0-C.

b. The installer shall charge the system accord ing to manufacturer’s specifications. Refrigerant charge shall be verified according to one of the following options, as applicable.

The installer and rater shall perform the standard charge verification procedure as

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b. For Climate Zones 1 through 15, a single

heat pump water heater. The storage tank shall not be located outdoors and be placed on an incompressible, rigid insulated surface with a minimum thermal resistance of R-10. The water heater shall be installed with a communication interface that meets either the requirements of 110.12(a); or

c. For Climate Zones 1 through 15, a single

heat pump water heater that meets the requirements of NEEA Advanced Water Heater Specification Tier 3 or higher. The storage tank shall not be located outdoors; or

d. If no natural gas is connected to the existing

water heater location, a consumer electric water heater; or

e. A water-heating system determined by the

executive director to use no more energy than the one specified in Item a above; or if no natural gas is connected to the existing water heater location, a water-heating system determined by the executive director to use no more energy than the one specified in Item d above.

I. Roofs. Replacements of the exterior surface of exist ing roofs, including adding a new surface layer on top of the existing exterior surface, shall meet the requirements of Section 110.8 and the applicable requirements of Subsections i and ii where more than 50 percent of the roof is being replaced.

i. Low-rise residential buildings with steep-sloped

roofs. Climate zones 10 through 15 shall have a minimum aged solar reflectance of 0.20 and a minimum thermal emittance of 0.75, or a minimum SRI of 16.

Exception to Section 150.2(b)1Ii: The following shall be considered equivalent to Subsection i:

a. Air-space of 1.0 inch (25 mm) is provided

between the top of the roof deck to the bottom of the roofing product; or

b. The installed roofing product has a profile

ratio of rise to width of 1 to 5 for 50 percent or greater of the width of the roofing product; or

c. Existing ducts in the attic are insulated and

sealed according to Section 150.1(c)9; or

d. Buildings with at least R-38 ceiling insulation;

e. Buildings with a radiant barrier in the attic

meeting the requirements of Section 150.1(c)2; or

Rater according to the procedures specified in Reference Residential Appendix Section RA3.2.3.2; and

b. Systems that utilize forced air ducts shall com ply with the minimum system airflow rate requirement in Section 150.2(b)1Fiia provided the system is of a type that can be verified using the procedures in Section RA3.3 or an approved alternative procedure in Section RA1.

Exception to Section 150.2(b)1Fiii: Entirely new or complete replacement packaged systems for which the manufacturer has verified correct system refrigerant charge prior to shipment from the factory are not required to have refrigerant charge confirmed through field verification and diagnostic testing. The installer of these packaged systems shall certify on the Certificate of Installation that the packaged system was precharged at the factory and has not been altered in a way that would affect the charge. Ducted systems shall comply with minimum system airflow rate requirement in Section 150.2(b)1Fiiib, provided that the system is of a type that can be verified using the procedure specified in Section RA3.3 or an approved alternative in Section RA1.

G. Altered space-conditioning system. Replacement

space-conditioning systems shall be limited to natural gas, liquefied petroleum gas, or the existing fuel type.

Exception to Section 150.2(b)1G: When the fuel type of the replaced heating system was natural gas or liquefied petroleum gas, the replacement spaceconditioning system may be a heat pump.

H. Water-heating system. Altered or replacement ser vice water-heating systems or components shall meet the applicable requirements below:

i. Pipe insulation. For newly installed piping, the insulation requirements of Section 150.0(j)2 shall be met. For existing accessible piping the applicable requirements of Section 150.0(j)2Ai, iii, and iv shall be met.

ii. Distribution system. For recirculation distribution systems: serving individual dwelling units, only demand recirculation systems with manual on/off control as specified in the Reference Appendix RA4.4.9 shall be installed.

iii. Water heating system. The water heating sys tem shall meet one of the following:

a. A natural gas or propane water-heating sys tem; or

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TABLE 150.2-B¶

AGED SOLAR REFLECTANCE INSULATION TRADE OFF TABLE

AGED SOLAR REFLECTANCE	ROOF DECK INSULATION R-VALUE	AGED SOLAR REFLECTANCE	ROOF DECK INSULATION R-VALUE
0.62-0.60	2	0.44-0.40	12
0.59-0.55	4	0.39-0.35	16
0.54-0.50	6	0.34-0.30	20
0.49-0.45	8	0.29-0.25	24

C. The proposed design shall be based on the actual

values of the altered components.

Notes to Section 150.2(b)2:

If an existing component must be replaced with a new component, that component is considered an altered component for the purpose of determining the standard design altered component energy budget and must meet the requirements of Section 152(b)2B.
The standard design shall assume the same geometry and orientation as the proposed design.
The “existing efficiency level” modeling rules, including situations where nameplate data are not available, are described in the Residential ACM Approval Manual.

Exception 1 to Section 150.2(b): Any dual- glazed greenhouse or/garden window installed as part of an alteration complies with the U -factor requirements in Section 150.1(c)3.

Exception 2 to Section 150.2(b): Where the space in the attic or rafter area is not large enough to accommodate the required R -value, the entire space shall be filled with insulation, provided such installation does not violate Section 1203.2 of Title 24, Part 2.

(c) Whole building. Any addition or alteration may comply with the requirements of Title 24, Part 6 by meeting the requirements for the entire building.

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, 25910, and 25943, Public Resources Code.

f. Buildings that have no ducts in the attic; or

g. In Climate Zones 10–15 and 14, R-2 or greater

insulation above the roof deck.

ii. Low-sloped roofs in Climate Zones 13 and 15

shall have a 3-year aged solar reflectance equal or greater than 0.63 and a thermal emittance equal or greater than 0.75, or a minimum SRI of 75.

Exception to Section 150.2(b)1Iii: Buildings with no ducts in the attic.

Exception 2 to Section 150.2(b)1Iii: The aged solar reflectance can be met by using insulation at the roof deck specified in Table 150.2-B.

J. Lighting. The altered lighting system shall meet the

lighting requirements of Section 150.0(k). The altered luminaires shall meet the luminaire efficacy requirements of Section 150.0(k) and Table 150.0-A. Where existing screw-base sockets are present in ceiling-recessed luminaires, removal of these sockets is not required provided that new JA8-compliant trim kits or lamps designed for use with recessed downlights or luminaires are installed.

Performance approach. The altered component(s) and any newly installed equipment serving the alteration shall meet the applicable requirements of Subsections A, B, and C below.

A. The altered components shall meet the applicable

requirements of Sections 110.0 through 110.9, Sections 150.0(a) through (l), Sections 150.0(m)1 through 150.0 (m)10, and Sections 150.0(o) through (q). Entirely new or complete replacement spaceconditioning systems, and entirely new or complete replacement duct systems, as these terms are used in Sections 150.2(b)1C, and 150.2(b)1Diia, shall comply with the requirements of Sections 150.0(m)12 and 150.0(m)13.

B. The standard design for an altered component shall be

the higher efficiency of existing conditions or the requirements stated in Table 150.2-C. For components not being altered, the standard design shall be based on the existing conditions. When the third party verification option is specified as a requirement, all components proposed for alteration for which the additional credit is taken, must be verified.

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Exceptions & meaning →

TABLE 150.2-C¶

STANDARD DESIGN FOR AN ALTERED COMPONENT

ALTERED COMPONENT	STANDARD DESIGN WITHOUT THIRD PARTY VERIFICATION OF EXISTING CONDITIONS SHALL BE BASED ON	STANDARD DESIGN WITH THIRD-PARTY VERIFICATION OF EXISTING CONDITIONS SHALL BE BASED ON
Ceiling insulation, wall insulation, and raised-floor insulation	The requirements of Sections 150.0(a), (c), and (d)	The existing insulation_R_-value
Fenestration	The_ U_-factor of 0.40 and SHGC value of 0.35. The glass area shall be the glass area of the existing building.	If the proposed_U_-factor is≤ 0.40 and SHGC value is≤ 0.35, the standard design shall be based on the existing_U_-factor and SHGC values as verified. Otherwise, the standard design shall be based on the_U_-factor of 0.40 and SHGC value of 0.35. The glass area shall be the glass area of the existing building.
Window film	The_U_-factor of 0.40 and SHGC value of 0.35.	The existing fenestration in the alteration shall be based on Tables 110.6-A and 110.6-B.
Doors	The_U_-factor of 0.20. The door area shall be the door area of the existing building.	If the proposed_U_-factor is < 0.20, the standard design shall be based on the existing_U_-factor value as verified. Otherwise, the standard design shall be based on the_U_-factor of 0.20. The door area shall be the door area of the existing building.
Space-heating and space- cooling equipment	Table 150.1-A or B for equipment efficiency requirements; Section 150.2(b)1C for entirely new or complete replacement systems; Section 150.2(b)1F for refrigerant charge verification requirements.	The existing efficiency levels.
Air distribution system – duct sealing	The requirements of Sections 150.2(b)1D and 150.2(b)1E	The requirements of Sections 150.2(b)1D and 150.2(b)1E
Air distribution system – duct insulation	The proposed efficiency levels.	The existing efficiency levels.
Water heating systems	The requirements of Section 150.2(b)1Gii.	The existing efficiency levels.
Roofing products	The requirements of Section 150.2(b)1H.	The requirements of Section 150.2(b)1H.
All other measures	The proposed efficiency levels.	The existing efficiency levels.

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CALIFORNIA MECHANICAL CODE, CALIFORNIA CODE OF REGULATIONS, TITLE 24, PART 4, CHAPTER 6, DUCT SYSTEMS

Exceptions & meaning →

TABLE P4-A ADOPTION TABLE¶

CODE SECTION		AGENCY
Adopt entire Chapter as amended (amended sections listed below)1		CEC
601.0		X
602.0		X
603.0		X
604.0		X
605.0		X

Adopted by reference for Occupancies A, B, E, F, H, M, R, S, and U; see Sections 110.8(d)3, 120.4 and 150.0(m).

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174 2019 CALIFORNIA ENERGY CODE Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.

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APPENDIX 1-A

STANDARDS AND DOCUMENTS REFERENCED IN THE ENERGY CODE

The following documents are incorporated by reference to the extent they are referenced in the Energy Code.

AIR-CONDITIONING, HEATING AND REFRIGERATION INSTITUTE

AHRI 210/240-08 Performance Rating of Unitary Air Conditioning and Air-Source Heat Pump Equipment (2008 with Addendum 1)

AHRI 310/380-17 Packaged Terminal Air-Conditioners and Heat Pumps (2017)

AHRI 320-98 Water-Source Heat Pumps

AHRI 325-98 Ground Water-Source Heat Pumps (1998)

ANSI/AHRI 340/360-15

Performance Rating of Commercial and Industrial Unitary AirConditioning and Heat Pump Equipment (2015)

ANSI/AHRI 365-09 Commercial and Industrial Unitary Air-Conditioning Condensing Units (2009)

ANSI/AHRI 390-03 Performance Rating of Single Package Vertical Air Conditioners and Heat Pumps

ANSI/AHRI 400-15 Liquid to Liquid Heat Exchangers (2015)

ANSI/AHRI 460-05 Performance Rating of Remote Mechanical-Draft Air-Cooled Refrigerant Condensers (2005)

AHRI 550/590-15 Performance Rating of Water-Chilling Packages Using the Vapor Compression Cycle (2015)

ANSI/AHRI 560-00 Absorption Water Chilling and Water Heating Packages (2000)

AHRI 680 Performance Rating of Residential Air Filter Equipment (2015)

AHRI 1230-14 Performance Rating of Variable Refrigerant Flow (VRF) Multi-Split Air-Conditioning and Heat Pump Equipment (w/Addendum 1)

Available from: Air-Conditioning, Heating and Refrigeration Institute 2311 Wilson Blvd,, Suite 400 Arlington, VA 22203 (703) 524-8800

AIR-CONDITIONING CONTRACTORS OF AMERICA

Manual J—Residential Load Calculation, Eighth Edition (2016)

Available from: Air-Conditioning Contractors of America, Inc. 2800 Shirlington Road, Suite 300 Arlington, VA 22206 www.acca.org (703) 575-4477

AMERICAN ARCHITECTURAL MANUFACTURERS ASSOCIATION

CANADIAN STANDARDS ASSOCIATION

WINDOW AND DOOR MANUFACTURERS ASSOCIATION

AAMA/WDMA/ CSA 101/I.S.2/ A440-11 NAFS 2011 – North American Fenestration Standard/Specification for Windows, Doors, and Skylights

Available from: AAMA 1827 Walden Office Square, Suite 550 Schaumburg, IL 60173-4268 (847) 303-5664 www.aamanet.org

CSA 5060 Spectrum Way, Suite 100 Mississauga, ON, Canada L4W 5N6 (800) 463-6727 www.csagroup.org

WDMA 2025 M Street, NW, Suite 800 Washington, DC 20036-3309 (202) 367-1157 www.wdma.com

AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGENISTS

2018 Threshold Limit Values (TLVS) and Biological Exposure Indices (BEIS)

Available from: ACGIH 1330 Kemper Meadow Drive Cincinnati, Ohio 45240 (513) 742-2020 www.acgih.org

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STANDARDS AND DOCUMENTS REFERENCED IN THE ENERGY CODE

AMERICAN NATIONAL STANDARDS INSTITUTE

ANSI Z21.10.3-17 Gas Water Heaters, Volume 1, Storage Water Heaters with Input Ratings above 75,000 Btu/h (2017)

ANSI Z21.13-17 Gas-Fired Low Pressure Steam and Hot Water Boilers (2017)

ANSI Z21.40.4-17 Performance Testing and Rating of Gas-Fired, Air-Conditioning and Heat Pump Appliances (2017)

ANSI Z21.47-16 Gas-Fired Central Furnaces (2016)

ANSI Z83.8-16 Gas Unit Heaters and Gas-Fired Duct Furnaces (2016)

Available from: American National Standards Institute 25 West 43rd Street, 4th floor New York, NY 10036 (212) 642-4900

ANSI/NSPI-5-03 Residential Inground Swimming Pools (2003)

ANSI C82.6-15 Ballasts for High-Intensity Discharge Lamps—Methods of Measurement (2015)

Available from: Association of Pool & Spa Professionals 2111 Eisenhower Ave. Alexandria, VA 22314 (703) 838-0083

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING ENGINEERS (NATIONAL PUBLICATIONS)

ASHRAE Standard 52.2-2017

Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size ASHRAE Standard 55-2017

Thermal Environment Conditions for Human Occupancy ASHRAE Standard 62.2-2016

Ventilation and Acceptable Indoor Air Quality in Low-Rise Residential Buildings

ASHRAE 193-2010 (RA 2014)

Method of Test for Determining the Air tightness of HVAC Equipment (RA 2014)

ASHRAE Handbooks

HVAC Applications (2015)

HVAC Systems and Equipment (2016)

Fundamentals (2017)

Available from: American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) 1791 Tullie Circle N.E. Atlanta, GA 30329 www.ashrae.org

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING ENGINEERS (REGIONAL PUBLICATION)

ASHRAE Climatic Data for Region X Arizona, California, Hawaii, Nevada, Publication SPCDX, 1982, ISBN #20002196 and Supplement, 1994, ISBN #20002596

Available from: Order Desk Building News 10801 National Boulevard Los Angeles, CA 90064 (800) 873-6397 or (310) 474-7771 www.bnibooks.com/

AMERICAN SOCIETY OF MECHANICAL ENGINEERS

ASME A112.18.1-2012/CSA B125.1-12

Plumbing Supply Fittings

ASME A17.1-2016 Safety Code for Elevators and Escalators (2016)

Available from: ASME Two Park Avenue New York, NY 10016-5990 (800) 843-2763 http://www.asme.org/

ASTM INTERNATIONAL

ASTM C55-17 Standard Specifications for Concrete Brick (2017)

ASTM C177-13 Standard Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the Guarded Hot Plate Apparatus (2013)

ASTM C272-16 Standard Test Method for Water Absorption of Core Materials for Structural Sandwich Constructions (2016)

ASTM C335/C335M-17

Standard Test Method for Steady-State Heat Transfer Properties of Horizontal Pipe Insulation (2017)

ASTM C518-17 Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus (2017)

ASTM C731-15 Standard Test Method for Extrudability, After Package Aging, of Latex Sealants (2015)

ASTM C732-17 Standard Test Method for Aging Effects of Artificial Weathering on Latex Sealants (2017)

ASTM C836/C836M-15

Standard Specification for High Solids Content, Cold Liquid-Applied Elastomeric Waterproofing Membrane for Use with Separate Wearing Course (2015)

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STANDARDS AND DOCUMENTS REFERENCED IN THE ENERGY CODE

ASTM C1167-11	Standard Specification for Clay Roof Tiles (2011)	ASTM D5870-16	Standard Practice for Calculating Property Retention Index of Plastics
ASTM C1371-15	Standard Test Method for Determination of Emittance of Materials Near Room Temperature Using Portable Emissometers (2015)	ASTM D6083-05e1	(2016) Standard Specification for Liquid- Applied Acrylic Coating Used in Roofing (2005)
ASTM C1492-16	Standard Specification for Concrete Roof Tile (2016)	ASTM D6694/D6694M-15 Standard Specification for Liquid-	ASTM D6694/D6694M-15 Standard Specification for Liquid-
ASTM C1549-16 ASTM C1583-13 ASTM D448-17 ASTM D522-17 ASTM D822-13 ASTM D1003-13 ASTM D1653-13	Standard Test Method for Determination of Solar Reflectance Near Ambient Temperature Using a Portable Solar Reflectometer (2016) 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) (2013) Standard Classification for Sizes of Aggrerate for Road and Bridge Construction (2017) Standard Test Methods for Mandrel Bend Test of Attached Organic Coatings (2017) Standard Practice for Filtered Open- Flame Carbon-Arc Exposures of Paint and Related Coatings (2013) Standard Test Method for Haze and Luminous Transmittance of Transparent Plastics (2013) Standard Test Methods for Water Vapor Transmission of Organic Coating Films (2013)	ASTM E96-16 ASTM E283-12 ASTM E408-13 ASTM E972-13 ASTM E1918-16 ASTM E1980-1	Applied Silicone Coating Used in Spray Polyurethane Foam Roofing (2015) Standard Test Methods for Water Vapor Transmission of Materials (2016) Standard Test Method for Determining the Rate of Air Leakage Through Exterior Windows, Curtain Walls, and Doors Under Specified Pressure Differences Across the Specimen (2012) Standard Test Methods for Total Normal Emittance of Surfaces Using Inspection-Meter Techniques (2013) Standard Test Method for Solar Photometric Transmittance of Sheet Materials Using Sunlight (2013) Standard Test Method for Measuring Solar Reflectance of Horizontal and Low-Sloped Surfaces in the Field (2016) Standard Practice for Calculating Solar Reflectance Index of Horizontal and Low-Sloped Opaque Surfaces (2011)
ASTM D1863-11	Standard Specification for Mineral Aggregate Used on Built-Up Roofs	ASTM E2178-13	Standard Test Method for Air Permeance of Building Materials (2013)
	(2011)	ASTM E2357-17	Standard Test Method for Determining
ASTM D2370-16	Standard Test Method for Tensile Properties of Organic Coatings (2016)		Air Leakage of Air Barrier Assemblies (2017)
ASTM D2824-13	Standard Specification for Aluminum- Pigmented Asphalt Roof Coatings, Nonfibered, Asbestos Fibered, and	ASTM E779-10	Standard Test Method for Determining Air Leakage Rate by Fan Pressurization (2010)
	Fibered without Asbestos (2013)	ASTM E1677-11	Standard Specification for an Air
ASTM D3468-13	Standard Specification for Liquid- Applied Neoprene and Chlorosulfonated Polyethylene Used in Roofing and		Retarder (AR) Material or System for Low-Rise Framed Building Walls (2011)
Waterproofing (2013) ASTM D3805/D3805M-16 Standard Guide for Application of Aluminum-Pigmented Asphalt Roof Coatings (2016)	Waterproofing (2013) ASTM D3805/D3805M-16 Standard Guide for Application of Aluminum-Pigmented Asphalt Roof Coatings (2016)	Available from:	ASTM International 100 Barr Harbor Drive West Conshohocken, PA 19428-2959 (800) 262-1373 or (610) 832-9500
ASTM D4798/16	Standard Test Method Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Xenon-Arc Method) (2016)

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STANDARDS AND DOCUMENTS REFERENCED IN THE ENERGY CODE

COOL ROOF RATING COUNCIL

CRRC-1 Product Rating Program Manual (2018)

Available from: Cool Roof Rating Council 449 15 ^th Street, Suite 400 Oakland, CA 94612 (866) 465-2523 www.coolroofs.org

HYDRONICS INSTITUTE

HI Heating Boiler Standard 86, 6th Edition (1989)

Available from: Hydronics Institute 35 Russo Place, P.O. Box 218 Berkeley Heights, New Jersey 07922 (908) 464-8200

ILLUMINATING ENGINEERING SOCIETY

The IES Lighting Handbook, Tenth Edition (2011)

IES LM-79-08 Electrical and Photometric Measurements of Solid-State Lighting Products (2008)

Available from: IES 120 Wall Street, 17th Floor New York, NY 10005-4001 (212) 248-5000 www.ies.org

INTERNATIONAL ASSOCIATION OF PLUMBING AND MECHANICAL OFFICIALS

California Mechanical Code

Available from: International Association of Plumbing and Mechanical Officials 4755 E. Philadelphia St. Ontario, CA 91761 (800) 85-IAPMO (854-2766) www.iapmo.org

INTERNATIONAL CODE COUNCIL

California Building Code

Available from: International Code Council Western Regional Office 3060 Saturn St. Brea, CA 92821 (888) 422-7233 www.iccsafe.org

CALIFORNIA BUILDING STANDARDS COMMISSION

California Electrical Code

California Plumbing Code

California Mechanical Code

California Building Code

Available from: California Building Standards Commission 2525 Natomas Park Drive, Suite 130 Sacramento, CA 95833-2936 (916) 263-0916 www.bsc.ca.gov

CALIFORNIA ENERGY COMMISSION

Appliance Efficiency Regulations

Alternative Calculation Method (ACM) Manual

Available from: California Energy Commission 1516 Ninth Street Sacramento, CA 95814 (916) 654-5106 or (800) 772-3300 (in California) www.energy.ca.gov/title24

CALIFORNIA DEPARTMENT OF CONSUMER AFFAIRS

Standards for Insulating Material

Available from: California Department of Consumer Affairs Bureau of Electronic and Appliance Repair, Home Furnishings and Thermal Insulation 4244 South Market Court, Suite D Sacramento, California 95834-1243 (916) 999-2041

COOLING TECHNOLOGY INSTITUTE

CTI ATC-105-00 Acceptance Test Code for Water Cooling Towers (2000)

CTI STD-201-15 Standard for the Certification of Water-Cooling Tower Thermal Performance (2015)

Available from: Cooling Technology Institute 2611 FM 1960 West, Suite A101 Houston, Texas 77068-3730 PO Box 73383 Houston, TX 77273-3383 (281) 583-4087

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INTERNATIONAL ORGANIZATION FOR STANDARDIZATION

ISO-13256-1 Water-Source Heat Pumps-Testing and Rating for Performance-Part 1: Water-to-Air and Brine-to-Air Heat Pumps (1998)

ISO-13256-2 Water-Source Heat pumps—Testing and rating for Performance—Part 1: Water-to-Water and Brine-to-Water Heat Pumps (1998)

Available from: ISO Chemin de Blandonnet 8 CP 401 1214 Vernier Geneva, Switzerland

INTERNATIONAL WINDOW FILM ASSOCIATION

Visual Quality Standard for Applied Window Film

Visual Quality Standard for Applied Window Film (Re-endorsed 2015)

STANDARDS AND DOCUMENTS REFERENCED IN THE ENERGY CODE

NSF INTERNATIONAL

NSF/ANSI 50 (2016) Circulation System Components and

Related Materials for Swimming Pools, Spas/Hot Tubs (2016)

Available from: NSF International PO Box 130140 Ann Arbor, MI 48113 (735) 769-8010

RESIDENTIAL ENERGY SERVICES NETWORK

ANSI/RESNET/ICC 380-2016

Standard for Testing Airtightness of Building Enclosures, Airtightness of Heating and Cooling Air Distribution Systems, and Airflow of Mechanical Ventilation Systems (2016)

Available from: International Window Film Association P.O. Box 3871 Martinsville, VA 24115-3871 276-666-4932

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION

NEMA SSL 7A-2015 “Phase Cut Dimming for Solid State

Lighting: Basic Compatibility”

Available from: 1300 North 17th Street, Suite 1752 Rosslyn, VA 22209 708-841-3200 www.nema.org

NATIONAL FENESTRATION RATING COUNCIL

NFRC 100 Procedure for Determining Fenestration Product U -factors (2017)

NFRC 200 Procedure for Determining Fenestration Product Solar Heat Gain Coefficients and Visible Transmittance at Normal Incidence (2017)

NFRC 202 Procedure for Determining Translucent Fenestration Product Visible Transmittance at Normal Incidence (2017)

NFRC 203 Procedure for Determining Visible Transmittance of Tubular Daylighting Devices (2017)

NFRC 400 Procedure for Determining Fenestration Product Air Leakage (2017)

Available from: National Fenestration Rating Council 6035 Ivy Lane, Suite 140 Greenbelt, MD 20770 (301) 589-1776 www.NFRC.org Email: info@nfrc.org

Available from: Residential Energy Services Network, Inc. (RESNET) P.O. Box 4561 Oceanside, CA 92052-4561 http://resnet.us/

SHEET METAL AND AIR-CONDITIONING CONTRACTORS’ NATIONAL ASSOCIATION

Residential Comfort System Installation Standards Manual (2016)

Available from: Sheet Metal and Air-Conditioning Contractors’ National Association (SMACNA) 4201 Lafayette Center Drive Chantilly, VA 20151-1209 (703) 803-2980 www.smacna.org

UL 181 Standard for Safety for Factory-made Air Ducts and Connectors (2017)

UL 181A Standard for Safety for Closure Systems for Use with Rigid Air Ducts and Air Connectors (2017)

UL 18IB Standard for Safety for Closure Systems for Use with Flexible Air Ducts and Air Connectors (2017)

UL 723 Standard for Test for Surface Burning Characteristics of Building Materials (2017)

UL 727 Standard for Oil-Fired Central Furnaces (2006)

UL 731 Standard for Oil-Fired Unit Heaters (2012)

UL 1077 Standard for Supplementary Protectors for Use in Electrical Equipment (2015)

UL 1574 Track Lighting Systems (2016)

UL 1598 Standard for Luminaires (2012)

100735044

STANDARDS AND DOCUMENTS REFERENCED IN THE ENERGY CODE

UL 1741 Standard for Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources (2018)

UL 1973 Standard for Batteries for Use in Stationary, Vehicle Auxiliary Power and Light Electric Rail (LER) Applications (2018)

UL 2108 Low Voltage Lighting Systems (2018)

UL 8750 Standard for Light Emitting Diode (LED) Equipment for Use in Lighting Products (2018)

UL 9540 Standard for Energy Storage Systems and Equipment (2016)

Available from: UL LLC 333 Pfingsten Road Northbrook, IL 60062-2096 (847) 272-8800

180 2019 CALIFORNIA ENERGY CODE

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APPENDIX 1-B

ENERGY COMMISSION DOCUMENTS INCORPORATED BY REFERENCE IN THEIR ENTIRETY

The following documents published by the California Energy Commission are incorporated by reference in their entirety into the Energy Code.

Referenced appendices for the Building Energy Efficiency Standards for Residential and Nonresidential Buildings, including the Joint Appendices (JA), the Residential Appendices (RA), and Nonresidential Appendices (NA)

Alternative Calculation Method (ACM) Approval Manual

Available from: California Energy Commission/ Publications 1516 Ninth Street Sacramento, CA 95814 (916) 654-5200 www.energy.ca.gov/title24

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182 2019 CALIFORNIA ENERGY CODE Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.

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HISTORY NOTE APPENDIX

(Title 24, Part 6, California Code of Regulations)

For prior history, see History Note Appendix to the 2016 Cal- ifornia Energy Code, effective January 1, 2017.

(CEC 02/18) Update of 2016 building energy efficiency standards to repeal, amend and add sections of the standards, to (among other things) increase the efficient use of energy and water in buildings, and to further the State’s policy goals of achieving zero net energy consumption of energy by buildings. Approved by the California Building Standards Commission on December 5, 2018; filed with the Secretary of State December 7, 2018, and effective January 1, 2020.

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184 2019 CALIFORNIA ENERGY CODE Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.

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