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International Residential Code
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Chapter 1
Scope and Administration
Chapter 2
Definitions
Chapter 3
Building Planning
Chapter 4
Foundations
Chapter 5
Floors
Chapter 6
Wall Construction
Chapter 7
Wall Covering
Chapter 8
Roof-Ceiling Construction
Chapter 9
Roof Assemblies
Chapter 10
Chimneys and Fireplaces
Chapter 11
Energy Efficiency
Chapter 12
Mechanical Administration
Chapter 13
General Mechanical System Requirements
Chapter 14
Heating and Cooling Equipment
Chapter 15
Exhaust Systems
Chapter 16
Duct Systems
Chapter 17
Combustion Air
Chapter 18
Chimneys and Vents
Chapter 19
Special Fuel-Burning Equipment
Chapter 20
Boilers and Water Heaters
Chapter 21
Hydronic Piping
Chapter 22
Special Piping and Storage Systems
Chapter 23
Solar Thermal Energy Systems
Chapter 24
Fuel Gas
Chapter 25
Plumbing Administration
Chapter 26
General Plumbing Requirements
Chapter 27
Plumbing Fixtures
Chapter 28
Water Heaters
Chapter 29
Water Supply and Distribution
Chapter 30
Sanitary Drainage
Chapter 31
Vents
Chapter 32
Traps
Chapter 33
Storm Drainage
Chapter 34
Electrical General Requirements
Chapter 35
Electrical Definitions
Chapter 36
Services
Chapter 37
Branch Circuit and Feeder Requirements
Chapter 38
Wiring Methods
Chapter 39
Power and Lighting Distribution
Chapter 40
Devices and Luminaires
Chapter 41
Appliance Installation
Chapter 42
Swimming Pools
Chapter 43
Class 2 Remote-Control Circuits
Chapter 44
Referenced Standards
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Home / Code Library / california / International Residential Code 2024 / Chapter 11
Adopts With Amendments
Chapter 11

Energy Efficiency

International Residential Code 2024

[F] N1101.1 Scope

Section N1101.1 — Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
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[F] N1101.1-TX Texas Energy Requirements Residential (Texas Amendment)

AMENDED
Section N1101.1-TX — Texas Energy Requirements Residential (Texas Amendment). This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
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[F] N1102.1 Building Thermal Envelope

Section N1102.1 — Building Thermal Envelope. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
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[F] N1102.4 Air Leakage

Section N1102.4 — Air Leakage. This section establishes specific code requirements. Refer to the official code text for detailed provisions, exceptions, and referenced standards. Refer to the official code text for complete requirements.
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[F] N1103.1 HVAC Systems

Section N1103.1 — HVAC Systems. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
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Code sections are sourced from the International Code Council (ICC) and NFPA. Refer to ICC Digital Codes or NFPA for the authoritative source documents.