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TITLE 24, PART 6, AND ASSOCIATED

ADMINISTRATIVE REGULATIONS

IN PART 1.

2018

CEC-400-2018-020-CMF

Edmund G. Brown Jr., Governor

CALIFORNIA

ENERGY COMMISSION

Janea A. Scott

Payam Bozorgchami, P.E.

Larry Froess, P.E.

Christopher Meyer

Building Standards Office

Deputy Director

Efficiency Division

Executive Director

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The Building Energy Efficiency Standards (Energy Standards) were first adopted and put into effect in

1978 and have been updated periodically in the intervening years. The Energy Standard s are a unique

California asset that have placed the State on the forefront of energy efficiency, sustainability, energy

independence, and climate change issues, and have provided a template for national standards within the United States as well as for other countries around the globe. They have benefitted from the conscientious involvement and enduring commitment to the public good of many persons and organizations along the way. The 2019 Energy Standards development and adoption process continues

a long-standing practice of maintaining the Standards with technical rigor, challenging but achievable

design and construction practices, public engagement, and full consideration of the views of stakeholders.

2019 is a major step towards meeting the Zero Net Energy (ZNE) goal by the year 2020 and is the last

of three updates to move California toward achieving that goal. The 2019 Energy Standards revision and the supporting documents were conceptualized, evaluated and

justified through the excellent work of Energy Commission staff and consultants working under contract

to the Energy Commission, supported by the utility-organized Codes and Standards Enhancement

(CASE) Initiative, and shaped by the participation of over 150 stakeholders and the contribution of over

1,300 formal public comments.

We would like to acknowledge Commissioner Andrew McAllister and his adviser, Martha Brooks, P.E. for their unwavering leadership throughout the standards development. Payam Bozorgchami, P.E., who

served as the project manager and senior engineer; Bill Pennington, Special Advisor to the Efficiency

Division, who provided overall guidance and contributed to the technical content of the Standards documents; Mazi Shirakh, P.E., who served as the senior engineer and senior technical lead for solar photovoltaic standards; Christopher Meyer, who served as the Manager for the Buildings Standards

Office; Peter Strait, who served as the supervisor for the Standards Development Unit; Todd Ferris, who

served as the supervisor for the Standards Tools Unit, Rebecca Westmore, Matt Chalmers, Jacquelin e Moore and Galen Lemei, who provided legal counsel; and technical staff contributors of the Building

Standards office including Mark Alatorre, P.E.;; Courtney Jones; Larry Froess, P.E.; Simon Lee P.E; Jeff

Miller, P.E; Ronald Balneg; Adrian Ownby; Dee Anne Ross; Michael Shewmaker; Alex is Smith; Danny Tam; Gabriel Taylor, P.E.;. RJ Wichert; Thao Chau; Ingrid Neumann; The Standards Outreach and Education Unit under the supervision of Christopher Olvera; Andrea Bailey; Amie Brousseau; Paula David; Kelly Morairty; Javier Perez; Daniel Wong, P.E. The Standards Compliance Office, Joe Loyer; Rashid Mir, P.E; Lea Haro who served as the supervisor of the Compliance and Enforcement Unit; Judy Roberson Veronica Olvera; and Tav Commins; Energy Commission editors office managed by Sandy Louey and including Carol Robinson; Amber Beck; Albert Lundeen; Lana McAllister; Edward Ortiz; and Michael Ward, and the Energy Commission Hotline staff and Web Team. Key Energy Commission and CASE consultants included NORESCO, Bruce Wilcox, Benya Lighting Design, Frontier Energy, McHugh Energy, Energy Solutions. The CASE Initiative is supported by a

consortium of California utility providers which includes the Pacific Gas and Electric Company, Southern

California Edison Com pany, San Diego Gas and Electric Company, Southern California Gas Company, the Sacramento Metropolitan Utility District, and the Los Angeles Department of Water and Power. We would also like to acknowledge the California Energy Alliance for the submission of their co de change proposal relating to lighting in existing buildings.

Abstract

The Building Energy Efficiency Standards were first adopted in 1976 and have been updated periodically since then as directed by statute. In 1975 the Department of Housing and Community Development adopted rudimentary energy conservation standards under their State Housing Law authority that were a precursor to the first generation of the Standards. However, the Warren -Alquist

Act was passed one year earlier with explicit direction to the Energy Commission (formally titled the

State Energy Resources Conservation and Development Commission) to adopt and implement the Standards. The Energy Commission"s statute created separate authority and specific direction

regarding what the Standards are to address, what criteria are to be met in developing the Standards,

and what implementation tools, aids, and technical assistance are to be provided. The Standards contain energy and water efficiency requirements (and indoor air quality requirements)

for newly constructed buildings, additions to existing buildings, and alterations to existing buildings.

Public Resources Code Sections 25402 subdivisions (a)-(b) and 25402.1 emphasize the importance of building design and construction flexibility by requiring the Energy Commission to establish performance standards, in the form of an “energy budget" in terms of the energy consumption per

square foot of floor space. For this reason, the Standards include both a prescriptive option, allowing

builders to comply by using methods known to be efficient, and a performance option, allowing

builders complete freedom in their designs provided the building achieves the same overall efficiency

as an equivalent building using the prescriptive option. Reference Appendices are adopted along with the Standards that contain data and other information that helps builders comply with the Standards.

The 201

9 update to the Building Energy Efficiency Standards focuses on several key areas to improve

the energy efficiency of newly constructed buildings and additions and alterations to existing buildings.

The most significant efficiency improvements to the residential Standards include the introduction of

photovoltaic into the prescriptive package, improvements for attics, walls, water heating, and lighting.

The most significant efficiency improvements to the nonresidential Standards include alignment with the ASHRAE 90.1 2017 national standards. The 2019 Standards also include changes made

throughout all of its sections to improve the clarity, consistency, and readability of the regulatory

language. Public Resources Code Section 25402.1 also requires the Energy Commission to support the performance standards with compliance tools for builders and building designers. The Alternative Calculation Method (ACM) Approval Manual adopted by regulation as an appendix of the Standards

establishes requirements for input, output and calculational uniformity in the computer programs used

to demonstrate compliance with the Standards. From this, the Energy Commission develops and

makes publicly available free, public domain building modeling software in order to enable compliance

based on modeling of building efficiency and performance. The ACM Approval Manual also includes provisions for private firms seeking to develop compliance software for approval by the Energy Commission, which further encourages flexibility and innovation.

The Standards are

conceptually divided into three basic sets. First, there is a basic set of mandatory

requirements that apply to all buildings. Second, there is a set of performance standards - the energy

budgets - that vary by climate zone (of which there are 16 in California) and building type; thus the

Standards are tailored to local conditions, and provide flexibility in how energy efficiency in buildings

can be achieved . Finally, the third set constitutes an alternative to the performance standards, which is a set of prescriptive packages that provide a recipe or a checklist compliance approach.

Keywords:

California Energy Commission Mandatory Envelope Insulation

California Building Code Prescriptive HVAC

California Building Energy Performance Building Commissioning

Efficiency Standards

Time Dependent Process Load

Title 24, Part 6 Valuation Refrigeration

2016 Building Energy Efficiency TDV Data Center

Standards

Ducts in Conditioned Spaces Exhaust

Residential High Performance Attics Compressed Air Nonresidential High Performance Walls Acceptance Testing Newly Constructed High Efficacy Lighting Data Collection Additions and Alterations to Water Heating Cool Roof

Existing Buildings

Windows Onsite Renewable

TABLE OF CONTENTS

ADMINISTRATIVE REGULATIONS ................................................................................................................1

CALIFORNIA CODE OF REGULATIONS TITLE 24, PART 1.......................................................................1

ARTICLE 1 - ENERGY BUILDING REGULATIONS ......................................................................................3

10

-102 - DEFINITIONS...............................................................................................................................................3

10 -103 - PERMIT, CERTIFICATE, INFORMATIONAL, AND ENFORCEMENT REQUIREMENTS FO R DE

SIGNERS, INSTALLERS, BUILDERS, MANUFACTURERS, AND SUPPLIERS.............................................7

10 -103.1 - NONRESIDENTIAL LIGHTING CONTROLS ACCEPTANCE TEST TRAINI

NG AND

C 10 -103.2 - NONRESIDENTIAL MECHANICAL ACCEPTANCE TEST TRAINING AND CERTIFICATION .. 21
10

-104 - EXCEPTIONAL DESIGNS ........................................................................................................................26

10

-105 - ENFORCEMENT BY THE COMMISSION...............................................................................................27

10

-106 - LOCALLY ADOPTED ENERGY STANDARDS......................................................................................28

10

-107 - INTERPRETATIONS .................................................................................................................................29

10

-108 - EXEMPTION...............................................................................................................................................30

10 -109 - COMPLIANCE SOFTWARE, ALTERNATIVE COMPONENT PACKAGES, EXCEPTIONA L M ETHODS, DATA REGISTRIES AND RELATED EXTERNAL DIGITAL DATA SOURCES, ALTERNATI VE RE SIDENTIAL FIELD VERIFICATION PROTOCOLS, ELECTRONIC DOCUMENT REPOSITORIES, A ND P

HOTOVOLTAIC SYSTEM REQUIREMENT DETERMINATIONS....................................................................31

10 -110 - PROCEDURES FOR CONSIDERATION OF APPLICATIONS UNDER SECTIONS 10-104,10- 106,
10

-108, AND 10-109...................................................................................................................................................35

10 -111 - CERTIFICATION AND LABELING OF FENESTRATION PRODUCT AND EXTERIOR DOOR U- FACTORS, SOLAR HEAT GAIN COEFFICIENTS, VISIBLE TRANSMITTANCE AND AIR LEAKAGE........36 10

-112 - CRITERIA FOR DEFAULT TABLES .......................................................................................................39

10 -113 - RATING AND LABELING OF ROOFING PRODUCT REFLECTANCE AND EMITTANCE .............40 10 -114 - DETERMINATION OF OUTDOOR LIGHTING ZONES AND ADMINISTRATIVE RULES F OR U

SE .............................................................................................................................................................................42

10 -115 - COMMUNITY SHARED SOLAR ELECTRIC GENERATION SYSTEM OR COMMUNITY SHARE D B ATTERY STORAGE SYSTEM COMPLIANCE OPTION FOR ONSITE SOLAR ELECTRIC GENERATI ON OR

BATTERY STORAGE REQUIREMENTS.........................................................................................................44

EFFICIENCY STANDARDS CALIFORNIA CODE OF REGULATIONS TITLE 24, PART 6........................47

SUBCHAPTER 1 ALL OCCUPANCIES—GENERAL PROVISIONS ...........................................................49

SECTION 100.1

- DEFINITIONS AND RULES OF CONSTRUCTION.................................................................54

SECTION 100.2

- CALCULATION OF TIME DEPENDENT VALUATION (TDV) ENERGY ...........................91 SUBCHAPTER 2 ALL OCCUPANCIES—MANDATORY REQUIREMENTS FOR THE MANUFACTURE, CONSTRUCTION AND INSTALLATION OF SYSTEMS, EQUIPMENT AND BUILDING COMPONENTS 92

SECTION 110.1

- MANDATORY REQUIREMENTS FOR APPLIANCES...........................................................94

SECTION 110.2

- MANDATORY REQUIREMENTS FOR SPACE-CONDITIONING EQUIPMENT ................95

SECTION 110.3

- MANDATORY REQUIREMENTS FOR SERVICE WATER-HEATING SYSTEMS AND

SECTION 110.4

- MANDATORY REQUIREMENTS FOR POOL AND SPA SYSTEMS AND EQUIPMENT 113

SECTION 110.5

- NATURAL GAS CENTRAL FURNACES, COOKING EQUIPMENT, POOL AND SPA

HEATERS, AND FIREPLACES: PILOT LIGHTS PROHIBITED.........................................................................129

SECTION 110.6

- MANDATORY REQUIREMENTS FOR FENESTRATION PRODUCTS AND EXTERIOR

DOORS .....................................................................................................................................................................130

SECTION 110.7

- MANDATORY REQUIREMENTS TO LIMIT AIR LEAKAGE.............................................134

SECTION 110.8

- MANDATORY REQUIREMENTS FOR INSULATION, ROOFING PRODUCTS AND

RADIANT BARRIERS.............................................................................................................................................135

SECTION 110.9

- MANDATORY REQUIREMENTS FOR LIGHTING CONTROLS ........................................138 SECTION 110.10 - MANDATORY REQUIREMENTS FOR SOLAR READY BUILDINGS .............................141 SECTION 110.11 - MANDATORY REQUIREMENTS FOR ELECTRICAL POWER DISTRIBUTION

SYSTEM ...................................................................................................................................................................144

SECTION 110.12 - MANDATORY REQUIREMENTS FOR DEMAND MANAGEMENT................................145

AND COVERED

PROCESSES—MANDATORY REQUIREMENTS..........................................................147

SECTION 120.0

- GENERAL.................................................................................................................................147

SECTION 120.1

- REQUIREMENTS FOR VENTILATION AND INDOOR AIR QUALITY.............................148

SECTION 120.2

- REQUIRED CONTROLS FOR SPACE-CONDITIONING SYSTEMS...................................160

SECTION 120.3

- REQUIREMENTS FOR PIPE INSULATION...........................................................................165

SECTION 120.4

- REQUIREMENTS FOR AIR DISTRIBUTION SYSTEM DUCTS AND PLENUMS ............168

SECTION 120.5

- REQUIRED NONRESIDENTIAL MECHANICAL SYSTEM ACCEPTANCE......................170

SECTION 120.6

- MANDATORY REQUIREMENTS FOR COVERED PROCESSES........................................172

SECTION 120.7

- MANDATORY INSULATION REQUIREMENTS..................................................................180

SECTION 120.8

- NONRESIDENTIAL BUILDING COMMISSIONING ............................................................182

SECTION 120.9

- MANDATORY REQUIREMENTS FOR COMMERCIAL BOILERS.....................................169 OCCUPANCIES—MANDATORY REQUIREMENTS FOR LIGHTING SYSTEMS AND EQUIPMENT, AND

ELECTRICAL POWER DISTRIBUTION SYSTEMS...................................................................................171

SECTION 130.0

- LIGHTING SYSTEMS AND EQUIPMENT, AND ELECTRICAL POWER DISTRIBUTION

SYSTEMS —GENERAL..........................................................................................................................................171

SECTION 130.1

- MANDATORY INDOOR LIGHTING CONTROLS ................................................................187

SECTION 130.2

- OUTDOOR LIGHTING CONTROLS AND EQUIPMENT .....................................................193quotesdbs_dbs19.pdfusesText_25

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