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Section 100.0

California Energy Code (Title 24, Part 6) · 2019 edition · updated 2026-09-12 · California

CBSC: official editions, supplements and errata

SCOPE

(a) Buildings covered. The provisions of Part 6 apply to all buildings:

  1. That are of Occupancy Group A, B, E, F, H, I, M, R, S or U; and

  2. For which an application for a building permit or renewal of an existing permit is filed (or is required by law to be filed) on or after the effective date of the provisions, or which are constructed by a governmental agency; and

  3. That are:

A. Unconditioned; or

B. Indirectly or directly conditioned, or process spaces.

Exception 1 to Section 100.0(a): Qualified historic buildings as regulated by the California His- toric Building Code (Title 24, Part 8). Lighting in qualified historic buildings shall comply with the applicable requirements in Section 140.6(a)3Q.

Exception 2 to Section 100.0(a): Building departments, at their discretion, may exempt temporary buildings, temporary outdoor lighting or temporary lighting in an unconditioned building, or structures erected in response to a natural disaster. Temporary buildings or structures shall be completely removed upon the expiration of the time limit stated in the permit.

Exception 3 to Section 100.0(a): Buildings in Occupancy Group I-3 and I-4.

(b) Parts of buildings regulated. The provisions of Part 6 apply to the building envelope, space-conditioning systems, water-heating systems, pool and spas, solar ready buildings, indoor lighting systems of buildings, outdoor lighting systems, electrical power distribution systems, and signs located either indoors or outdoors, in buildings that are:

  1. Covered by Section 100.0(a); and

  2. Set forth in Table 100.0-A.

(c) Habitable stories.

  1. All conditioned space in a story shall comply with Part 6, whether or not the story is a habitable space.

  2. All unconditioned space in a story shall comply with the lighting requirements of Part 6, whether or not the story is a habitable space.

(d) Outdoor lighting and indoor and outdoor signs. The provisions of Part 6 apply to outdoor lighting systems and to signs located either indoors or outdoors as set forth in Table 100.0-A.

(e) Sections applicable to particular buildings. Table 100.0-A and this subsection list the provisions of Part 6 that are applicable to different types of buildings covered by Section 100.0(a).

  1. All buildings. Sections 100.0 through 110.12 apply to all buildings.

Exception to Section 100.0(e)1: Spaces or requirements not listed in Table 100.0-A.

  1. Newly constructed buildings.

A. All newly constructed buildings. Sections 110.0

through 110.12 apply to all newly constructed buildings within the scope of Section 100.0(a). In addition, newly constructed buildings shall meet the requirements of Subsections B, C, D or E, as applicable.

B. Nonresidential, high-rise residential and hotel/

motel buildings that are mechanically heated or mechanically cooled.

i. Sections applicable. Sections 120.0 through

140.8 apply to newly constructed nonresidential buildings, high-rise residential buildings and hotels/motels that are mechanically heated or mechanically cooled.

ii. Compliance approaches. In order to comply

with Part 6, newly constructed nonresidential buildings, high-rise residential buildings and hotels/motels that are mechanically heated or mechanically cooled must meet the requirements of:

a. Mandatory measures: The applicable

provisions of Sections 120.0 through 130.5; and

b. Either:

(i) Performance approach: Section

140.1; or

(ii) Prescriptive approach: Sections

140.2 through 140.8.

C. Unconditioned nonresidential buildings and pro-

cess space. Sections 110.9, 110.10, 130.0 through 130.5, 140.3(c), 140.6, 140.7 and 140.9 apply to all newly constructed unconditioned buildings and 140.1, and 140.3(c), for process spaces within the scope of Section 100.0(a).

D. Low-rise residential buildings.

i. Sections applicable. Sections 150.0 through

150.1 apply to newly constructed low-rise residential buildings.

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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E. Covered processes.

i. Sections applicable. Sections 110.2, 120.6 and

140.9 apply to covered processes.

ii. Compliance approaches. In order to comply with

Part 6, covered processes must meet the requirements of:

a. The applicable mandatory measures in Sec tion 120.6; and

b. Either:

(i) The performance approach requirements

of Section 140.1; or

(ii) The prescriptive approach requirements

of Section 140.9.

Note: If covered processes do not have prescriptive requirements, then only the applicable mandatory measures in Section 120.6 must be met.

ALL OCCUPANCIES—GENERAL PROVISIONS

ii. Compliance approaches. In order to comply

with Part 6, newly constructed low-rise residential buildings must meet the requirements of:

a. Mandatory measures: The applicable

provisions of Sections 110.0 through 110.10 and 150.0; and

b. Either:

(i) Performance approach: Section

150.1(a) and (b); or

(ii) Prescriptive approach: Sections

150.1(a) and (c).

Exception to Section 100.0(e)2Diib: Seasonally occupied agricultural housing limited by state or federal agency contract to occupancy not more than 180 days in any calendar year.

TABLE 100.0-A—APPLICATION OF STANDARDS

OCCUPANCIES APPLICATION MANDATORY PRESCRIPTIVE PERFORMANCE ADDITIONS/
ALTERATIONS
General Provisions for All Buildings General Provisions for All Buildings 100.0, 100.1, 100.2, 110.0 100.0, 100.1, 100.2, 110.0 100.0, 100.1, 100.2, 110.0 100.0, 100.1, 100.2, 110.0
Nonresidential,
High-rise
Residential and
Hotels/Motels
General 120.0 140.0, 140.2 140.0,
140.1
141.0
Nonresidential,
High-rise
Residential and
Hotels/Motels
Envelope (conditioned) 110.6, 110.7, 110.8, 120.7 140.3 140.3 140.3
Nonresidential,
High-rise
Residential and
Hotels/Motels
Envelope
(unconditioned, process spaces)
N.A. 140.3(c) 140.3(c) 140.3(c)
Nonresidential,
High-rise
Residential and
Hotels/Motels
HVAC (conditioned) 110.2, 110.5, 120.1, 120.2,
120.3, 120.4, 120.5, 120.8
140.4 140.4 140.4
Nonresidential,
High-rise
Residential and
Hotels/Motels
Water Heating 110.3, 120.3, 120.8, 120.9 140.5 140.5 140.5
Nonresidential,
High-rise
Residential and
Hotels/Motels
Indoor Lighting
(conditioned, process spaces)
110.9, 120.8, 130.0,
130.1, 130.4
140.3(c), 140.6 140.3(c), 140.6 140.3(c), 140.6
Nonresidential,
High-rise
Residential and
Hotels/Motels
Indoor Lighting
(unconditioned and parking garages)
110.9, 120.8, 130.0,
130.1, 130.4
140.3(c), 140.6 N.A. N.A.
Nonresidential,
High-rise
Residential and
Hotels/Motels
Outdoor Lighting 110.9, 130.0, 130.2, 130.4 140.7 140.7 140.7
Nonresidential,
High-rise
Residential and
Hotels/Motels
Electrical Power Distribution 110.11, 130.5 N.A. N.A. N.A.
Nonresidential,
High-rise
Residential and
Hotels/Motels
Pool and Spa Systems 110.4, 110.5, 150.0(p) N.A. N.A. 141.0
Nonresidential,
High-rise
Residential and
Hotels/Motels
Solar Ready Buildings 110.10 N.A. N.A. 141.0(a)
Covered
Processes1
Envelope, Ventilation, Process Loads 110.2, 120.6 140.9 140.1 120.6, 140.9,
141.1
Signs Indoor and Outdoor 110.9, 130.0, 130.3 140.8 N.A. 141.0,
141.0(b)2H
Low-rise
Residential
General 150.0 150.1(a, c) 150.1(a),
150.1(b)
150.2(a),
150.2(b)
Low-rise
Residential
Envelope (conditioned) 110.6, 110.7, 110.8, 150(a),
150.0(b), 150.0(c), 150.0(d),
150.0(e), 150.0(g), 150.0(q)
110.6, 110.7, 110.8, 150(a),
150.0(b), 150.0(c), 150.0(d),
150.0(e), 150.0(g), 150.0(q)
110.6, 110.7, 110.8, 150(a),
150.0(b), 150.0(c), 150.0(d),
150.0(e), 150.0(g), 150.0(q)
110.6, 110.7, 110.8, 150(a),
150.0(b), 150.0(c), 150.0(d),
150.0(e), 150.0(g), 150.0(q)
Low-rise
Residential
HVAC (conditioned) 110.2, 110.5, 150.0(h),
150.0(i), 150.0(j),
150.0(m), 150.0(o)
110.2, 110.5, 150.0(h),
150.0(i), 150.0(j),
150.0(m), 150.0(o)
110.2, 110.5, 150.0(h),
150.0(i), 150.0(j),
150.0(m), 150.0(o)
110.2, 110.5, 150.0(h),
150.0(i), 150.0(j),
150.0(m), 150.0(o)
Low-rise
Residential
Water heating 110.3, 150.0(j, n) 110.3, 150.0(j, n) 110.3, 150.0(j, n) 110.3, 150.0(j, n)
Low-rise
Residential
Indoor Lighting
(conditioned, unconditioned
and parking garages)
110.9, 130.0, 150.0(k) 110.9, 130.0, 150.0(k) 110.9, 130.0, 150.0(k) 110.9, 130.0, 150.0(k)
Low-rise
Residential
Outdoor Lighting 110.9, 130.0, 150.0(k) 110.9, 130.0, 150.0(k) 110.9, 130.0, 150.0(k) 110.9, 130.0, 150.0(k)
Low-rise
Residential
Pool and Spa Systems 110.4, 150.0(p) N.A. N.A. 150.2(a),
150.2(b)
Low-rise
Residential
Solar Ready Buildings 110.10 N.A. N.A. N.A.
  1. Nonresidential, high-rise and hotel/motel buildings that contain covered processes may conform to the applicable requirements of both occupancy types listed in this table.

2 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.

100735044

  1. New construction in existing buildings (additions, alterations and repairs).

A. Nonresidential, high-rise residential and hotel/

motel buildings. Section 141.0 applies to new construction in existing nonresidential, high-rise resi - dential and hotel/motel buildings. New construction in existing buildings includes additions, alterations and repairs. Section 141.0 specifies requirements that uniquely apply to additions, alterations or repairs to existing buildings, and specify which requirements in other sections also apply. For alterations that change the occupancy classification of the building, the requirements specified in Section 141.0 apply to the occupancy after the alterations.

B. Low-rise residential buildings. Section 150.2

applies to new construction in existing low-rise resi - dential buildings. New construction in existing buildings includes additions, alterations and repairs. Section 150.2 specifies requirements that uniquely apply to additions, alterations or repairs to existing buildings, and specify which requirements in other sections also apply. For alterations that change the occupancy classification of the building, the requirements specified in Section 150.2 apply to the occupancy after the alterations.

  1. Installation of insulation in existing buildings. Section 110.8(d) applies to buildings in which insulation is being installed in existing attics, or on existing water heaters or existing space conditioning ducts.

  2. Outdoor lighting. Sections 110.9, 130.0, 130.2, 130.4, 140.7, and 150.0 apply to newly constructed outdoor lighting systems, and Section 141.0 applies to outdoor lighting that is either added or altered.

  3. Signs. Sections 130.0, 130.3 and 140.8 apply to newly constructed signs located either indoors or outdoors, and Section 141.0 applies to sign alterations located either indoors or outdoors.

(f) Mixed occupancy. When a building is designed and constructed for more than one type of occupancy (residential and nonresidential), the space for each occupancy shall meet the provisions of Part 6, applicable to that occupancy.

Exception 1 to Section 100.0(f): If one occupancy constitutes at least 80 percent of the conditioned floor area of the building, the entire building envelope, HVAC and water heating may be designed to comply with the provisions of Part 6 applicable to that occupancy, provided that the applicable lighting requirements in Sections 140.6 through 140.8 or 150.0(k) are met for each occupancy and space, and mandatory measures in Sections 110.0 through 130.5 and 150.0 are met for each occupancy and space.

Exception 2 to Section 100.0(f): If one occupancy constitutes at least 90 percent of the combined conditioned plus unconditioned floor area of the building, the entire building indoor lighting may be designed to comply with only the lighting provisions of Part 6 applicable to that occupancy.

ALL OCCUPANCIES—GENERAL PROVISIONS

(g) Administrative requirements. Administrative requirements relating to permit requirements, enforcement by the Commission, locally adopted energy standards, interpretations, claims of exemption, approved calculation methods, rights of appeal, and certification and labeling requirements of fenestration products and roofing products are specified in California Code of Regulations, Title 24, Part 1, Sections 10101 to 10-114.

(h) Certification requirements for manufactured equip- ment, products and devices. Part 6 limits the installation of manufactured equipment, products and devices to those that have been certified as specified by Sections 110.0 and 110.1. Requirements for manufactured equipment, products, and devices, when not specified in Title 24 Part 6, are specified in California Code of Regulations, Title 20, Sections 1601– 1609.

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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