Adopts With Amendments
Chapter 4
Commercial and Residential Energy Efficiency
International Energy Conservation Code 2021
[F] 401.1 Scope - Commercial Energy Efficiency
Section 401.1 — Scope - Commercial Energy Efficiency. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 401.1.1 Residential Compliance Scope
Section 401.1.1 — Residential Compliance Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 401.2 Application
Section 401.2 — Application. 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.
[F] 402.1 General - Building Thermal Envelope
Section 402.1 — General - 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.
[F] 402.1.1 Insulation and Fenestration Criteria
Section 402.1.1 — Insulation and Fenestration Criteria. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 402.1.2 U-Factor Alternative
Section 402.1.2 — U-Factor Alternative. 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.
[F] 402.2 Roof Assembly Insulation
Section 402.2 — Roof Assembly Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 402.2.1 Roof Insulation - Above Deck
Section 402.2.1 — Roof Insulation - Above Deck. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 402.3 Wall Assembly Insulation
Section 402.3 — Wall Assembly Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 402.3.1 Below-Grade Wall Insulation
Section 402.3.1 — Below-Grade Wall Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 402.4 Fenestration
Section 402.4 — Fenestration. 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.
[F] 402.4.1 Maximum Fenestration U-Factor
Section 402.4.1 — Maximum Fenestration U-Factor. 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.
[F] 402.5 Air Leakage - Thermal Envelope
Section 402.5 — Air Leakage - Thermal Envelope. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 402.5.1 Air Barrier Construction
Section 402.5.1 — Air Barrier Construction. This section specifies construction material requirements and standards. Refer to the official code for specific material specifications and testing standards. Refer to the official code text for complete requirements.
[F] 402.6 Floor Assembly Insulation
Section 402.6 — Floor Assembly Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 402.7 Slab-on-Grade Insulation - Commercial
Section 402.7 — Slab-on-Grade Insulation - Commercial. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 402.8 Below-Grade Wall Insulation - Commercial
Section 402.8 — Below-Grade Wall Insulation - Commercial. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 403.1 General - HVAC Systems
Section 403.1 — General - HVAC Systems. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 403.1.1 Residential HVAC
Section 403.1.1 — Residential HVAC. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 403.10 Energy Recovery
Section 403.10 — Energy Recovery. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] 403.11 Boiler Turndown
Section 403.11 — Boiler Turndown. 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.
[F] 403.12 Variable Air Volume
Section 403.12 — Variable Air Volume. 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.
[F] 403.13 Kitchen Exhaust Makeup Air
Section 403.13 — Kitchen Exhaust Makeup Air. 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.
[F] 403.2 HVAC Equipment Performance
Section 403.2 — HVAC Equipment Performance. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 403.3 HVAC Controls
Section 403.3 — HVAC Controls. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 403.4 HVAC System Controls - Demand Control
Section 403.4 — HVAC System Controls - Demand Control. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 403.5 Economizers
Section 403.5 — Economizers. 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.
[F] 403.6 Duct Insulation
Section 403.6 — Duct Insulation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 403.7 Duct Sealing
Section 403.7 — Duct Sealing. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 403.8 Piping Insulation - HVAC
Section 403.8 — Piping Insulation - HVAC. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] 403.9 Heat Rejection Equipment
Section 403.9 — Heat Rejection Equipment. 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.
[F] 404.1 Commercial Electrical Power and Lighting
Section 404.1 — Commercial Electrical Power and Lighting. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] 404.1.1 Residential Water Heating
Section 404.1.1 — Residential Water Heating. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] 404.2 Service Water Heating - Commercial
Section 404.2 — Service Water Heating - Commercial. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] 404.3 Hot Water Piping Insulation
Section 404.3 — Hot Water Piping Insulation. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] 404.4 Heat Traps
Section 404.4 — Heat Traps. 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.
[F] 404.5 Heated Swimming Pools
Section 404.5 — Heated Swimming Pools. 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.
[F] 405.1 Commercial Lighting - General
Section 405.1 — Commercial Lighting - General. 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.
[F] 405.1.1 Simulated Performance
Section 405.1.1 — Simulated Performance. 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.
[F] 405.2 Lighting Controls
Section 405.2 — Lighting Controls. 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.
[F] 405.3 Interior Lighting Power Density
Section 405.3 — Interior Lighting Power Density. 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.
[F] 405.4 Exterior Lighting
Section 405.4 — Exterior Lighting. 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.
[F] 405.5 Electrical Metering
Section 405.5 — Electrical Metering. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] 405.6 Electrical Transformers
Section 405.6 — Electrical Transformers. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] 405.7 Receptacle Controls
Section 405.7 — Receptacle Controls. 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.
[F] 405.8 EV-Ready - Commercial
Section 405.8 — EV-Ready - Commercial. 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.
[F] 406.1 Commercial - Total Building Performance
Section 406.1 — Commercial - Total Building Performance. 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.
[F] 407.1 Commercial Performance Path
Section 407.1 — Commercial Performance Path. 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.
[F] 408.1 Commercial Commissioning
Section 408.1 — Commercial Commissioning. 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.
[F] 408.2 Commissioning Plan
Section 408.2 — Commissioning Plan. 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.
[F] 408.3 Commissioning Completion
Section 408.3 — Commissioning Completion. 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.
[F] C401.1 Scope
Section C401.1 — Scope. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] C401.2 Application
Section C401.2 — Application. 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.
[F] C401.3 Total Building Performance
Section C401.3 — Total Building Performance. 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.
[F] C402.1 Commercial Building Envelope - General
Section C402.1 — Commercial Building Envelope - General. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.1-WA Washington — Enhanced Envelope Requirements
Section C402.1-WA — Washington — Enhanced Envelope Requirements. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.1.1 Insulation and Fenestration Criteria
Section C402.1.1 — Insulation and Fenestration Criteria. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.1.2 Insulation and Fenestration Criteria
Section C402.1.2 — Insulation and Fenestration Criteria. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.1.3 Insulation component R-value-based method
Section C402.1.3 — Insulation component R-value-based method. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.1.4 Assembly U-Factor, C-Factor, or F-Factor Based Method
Section C402.1.4 — Assembly U-Factor, C-Factor, or F-Factor Based Method. 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.
[F] C402.1.5 Thermal Resistance of Metal Building Walls
Section C402.1.5 — Thermal Resistance of Metal Building Walls. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.2 Specific Insulation Requirements
Section C402.2 — Specific Insulation Requirements. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.2.1 Roof Assembly
Section C402.2.1 — Roof Assembly. 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.
[F] C402.2.2 Wall Insulation
Section C402.2.2 — Wall Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.2.3 Metal Building Roofs
Section C402.2.3 — Metal Building Roofs. 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.
[F] C402.2.4 Floor Insulation
Section C402.2.4 — Floor Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.2.5 Slab-on-Grade Floor Insulation
Section C402.2.5 — Slab-on-Grade Floor Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.2.6 Opaque Door Insulation
Section C402.2.6 — Opaque Door Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.2.7 Insulation Protection
Section C402.2.7 — Insulation Protection. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.3 Opaque Wall Specific Insulation
Section C402.3 — Opaque Wall Specific Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.3.1 Commercial Opaque Wall Insulation
Section C402.3.1 — Commercial Opaque Wall Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C402.3.2 Metal Building Walls
Section C402.3.2 — Metal Building Walls. 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.
[F] C402.3.3 Steel-Framed Walls
Section C402.3.3 — Steel-Framed Walls. This section specifies construction material requirements and standards. Refer to the official code for specific material specifications and testing standards. Refer to the official code text for complete requirements.
[F] C402.3.4 Floors Over Unconditioned Spaces
Section C402.3.4 — Floors Over Unconditioned Spaces. 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.
[F] C402.3.5 Slab-on-Grade Floors
Section C402.3.5 — Slab-on-Grade Floors. 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.
[F] C402.4 Air Leakage General
Section C402.4 — Air Leakage General. 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.
[F] C402.4.1 Air Barrier Required
Section C402.4.1 — Air Barrier Required. 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.
[F] C402.4.2 Maximum SHGC
Section C402.4.2 — Maximum SHGC. 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.
[F] C402.4.3 Fenestration Air Leakage
Section C402.4.3 — Fenestration 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.
[F] C402.4.4 Doors
Section C402.4.4 — Doors. 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.
[F] C402.4.5 Loading Dock Weatherseals
Section C402.4.5 — Loading Dock Weatherseals. This section covers structural design and loading requirements. Specific values and calculation methods are defined in the official code text. Refer to the official code text for complete requirements.
[F] C402.4.6 Vestibules
Section C402.4.6 — Vestibules. 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.
[F] C402.5 Slab-on-Grade Floors
Section C402.5 — Slab-on-Grade Floors. 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.
[F] C402.5-WA Washington — Air Barrier Requirements
Section C402.5-WA — Washington — Air Barrier Requirements. 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.
[F] C402.5.1 Air Barriers
Section C402.5.1 — Air Barriers. 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.
[F] C402.5.1.1 Air barrier materials
Section C402.5.1.1 — Air barrier materials. This section specifies construction material requirements and standards. Refer to the official code for specific material specifications and testing standards. Refer to the official code text for complete requirements.
[F] C402.5.1.2 Air barrier assemblies
Section C402.5.1.2 — Air barrier assemblies. 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.
[F] C402.5.2 Air Barrier Testing
Section C402.5.2 — Air Barrier Testing. 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.
[F] C402.5.3 Fenestration Air Leakage
Section C402.5.3 — Fenestration 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.
[F] C402.5.4 Recessed lighting
Section C402.5.4 — Recessed lighting. 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.
[F] C402.5.5 Loading dock weatherseals
Section C402.5.5 — Loading dock weatherseals. This section covers structural design and loading requirements. Specific values and calculation methods are defined in the official code text. Refer to the official code text for complete requirements.
[F] C402.5.6 Vestibules
Section C402.5.6 — Vestibules. 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.
[F] C402.5.7 Fenestration Air Leakage
Section C402.5.7 — Fenestration 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.
[F] C402.6 Fenestration
Section C402.6 — Fenestration. 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.
[F] C402.6.1 Maximum fenestration U-factor
Section C402.6.1 — Maximum fenestration U-factor. 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.
[F] C402.6.2 Dynamic Glazing
Section C402.6.2 — Dynamic Glazing. 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.
[F] C402.6.3 Dynamic glazing
Section C402.6.3 — Dynamic glazing. 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.
[F] C402.6.4 Skylight area
Section C402.6.4 — Skylight area. This section covers allowable building height, area, and number of stories based on construction type and occupancy. Refer to the official code text for complete requirements.
[F] C402.7 Floors Over Outdoor Air or Unconditioned Space
Section C402.7 — Floors Over Outdoor Air or Unconditioned Space. 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.
[F] C402.7.1 Entrance Door Vestibule Requirements
Section C402.7.1 — Entrance Door Vestibule Requirements. 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.
[F] C402.8 Slab-on-Grade Floors
Section C402.8 — Slab-on-Grade Floors. 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.
[F] C402.8.1 Loading Dock Weatherseals
Section C402.8.1 — Loading Dock Weatherseals. This section covers structural design and loading requirements. Specific values and calculation methods are defined in the official code text. Refer to the official code text for complete requirements.
[F] C402.9.1 Moisture Control Commercial
Section C402.9.1 — Moisture Control Commercial. 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.
[F] C403.1 HVAC general
Section C403.1 — HVAC general. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.1.1 Equipment Efficiency
Section C403.1.1 — Equipment Efficiency. 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.
[F] C403.1.2 Heat Pump Equipment Efficiency
Section C403.1.2 — Heat Pump Equipment Efficiency. 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.
[F] C403.10 Compliance and Performance Requirements
Section C403.10 — Compliance and Performance Requirements. 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.
[F] C403.10.1 Boiler Turndown Ratio
Section C403.10.1 — Boiler Turndown Ratio. 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.
[F] C403.11 Pipe Insulation
Section C403.11 — Pipe Insulation. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] C403.11.1 Kitchen Exhaust Systems Efficiency
Section C403.11.1 — Kitchen Exhaust Systems Efficiency. 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.
[F] C403.12 Kitchen Exhaust Efficiency
Section C403.12 — Kitchen Exhaust Efficiency. 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.
[F] C403.12.1 Laboratory Exhaust Efficiency
Section C403.12.1 — Laboratory Exhaust Efficiency. 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.
[F] C403.13.1 Freeze Protection Systems
Section C403.13.1 — Freeze Protection Systems. 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.
[F] C403.2 Equipment Efficiency
Section C403.2 — Equipment Efficiency. 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.
[F] C403.2.1 Equipment Efficiency
Section C403.2.1 — Equipment Efficiency. 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.
[F] C403.2.2 Cooling equipment efficiency
Section C403.2.2 — Cooling equipment efficiency. 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.
[F] C403.2.3 Automatic Setback
Section C403.2.3 — Automatic Setback. 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.
[F] C403.2.4 Boiler Efficiency
Section C403.2.4 — Boiler Efficiency. 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.
[F] C403.2.5 Furnace Efficiency
Section C403.2.5 — Furnace Efficiency. 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.
[F] C403.2.6 Energy Recovery Ventilation
Section C403.2.6 — Energy Recovery Ventilation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.3 HVAC Equipment Efficiency
Section C403.3 — HVAC Equipment Efficiency. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.3.1 Thermostatic Controls
Section C403.3.1 — Thermostatic Controls. 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.
[F] C403.3.2 Setpoint Overlap Restriction
Section C403.3.2 — Setpoint Overlap Restriction. 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.
[F] C403.3.3 Energy Recovery
Section C403.3.3 — Energy Recovery. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C403.3.4 Heat Pump Auxiliary Heat
Section C403.3.4 — Heat Pump Auxiliary Heat. 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.
[F] C403.3.5 Ventilation Controls
Section C403.3.5 — Ventilation Controls. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.4 HVAC System Commissioning
Section C403.4 — HVAC System Commissioning. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.4.1 Demand Control Ventilation
Section C403.4.1 — Demand Control Ventilation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.4.2 Setback Controls
Section C403.4.2 — Setback Controls. 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.
[F] C403.4.3 Duct Sealing
Section C403.4.3 — Duct Sealing. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.4.4 Hydronic System Design and Control
Section C403.4.4 — Hydronic System Design and Control. 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.
[F] C403.4.5 Heat Rejection Equipment
Section C403.4.5 — Heat Rejection Equipment. 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.
[F] C403.5 Piping Insulation Commercial
Section C403.5 — Piping Insulation Commercial. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C403.5.1 Air Economizer
Section C403.5.1 — Air Economizer. 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.
[F] C403.5.2 Duct Insulation - Commercial
Section C403.5.2 — Duct Insulation - Commercial. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.5.3 Piping Insulation
Section C403.5.3 — Piping Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C403.6 Duct and plenum insulation and sealing
Section C403.6 — Duct and plenum insulation and sealing. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.6.1 Duct and Plenum Insulation
Section C403.6.1 — Duct and Plenum Insulation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.6.2 Duct leakage testing
Section C403.6.2 — Duct leakage testing. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.6.3 Setback Controls
Section C403.6.3 — Setback Controls. 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.
[F] C403.6.4 Optimum Start Controls
Section C403.6.4 — Optimum Start Controls. 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.
[F] C403.6.5 Demand Control Ventilation
Section C403.6.5 — Demand Control Ventilation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.7 Energy recovery ventilation systems
Section C403.7 — Energy recovery ventilation systems. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.7.1 Kitchen Exhaust Systems
Section C403.7.1 — Kitchen Exhaust Systems. 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.
[F] C403.7.2 Energy Recovery Effectiveness
Section C403.7.2 — Energy Recovery Effectiveness. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C403.7.3 Parking Garage Ventilation
Section C403.7.3 — Parking Garage Ventilation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.7.4 Energy Recovery Ventilation Systems
Section C403.7.4 — Energy Recovery Ventilation Systems. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.7.4.1 ERV System Design
Section C403.7.4.1 — ERV System Design. 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.
[F] C403.8 Duct and Plenum Insulation and Sealing
Section C403.8 — Duct and Plenum Insulation and Sealing. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.8.1 Duct Insulation
Section C403.8.1 — Duct Insulation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.8.2 Duct Sealing
Section C403.8.2 — Duct Sealing. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.8.3 Duct Leakage Testing
Section C403.8.3 — Duct Leakage Testing. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C403.9 Fan Power Limitation
Section C403.9 — Fan Power Limitation. 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.
[F] C403.9.1 Protection of Piping Insulation
Section C403.9.1 — Protection of Piping Insulation. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
[F] C404.1 Service Water Heating General
Section C404.1 — Service Water Heating General. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] C404.1.1 Service Water Heating
Section C404.1.1 — Service Water Heating. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] C404.1.2 Hot Water Pipe Insulation
Section C404.1.2 — Hot Water Pipe Insulation. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] C404.2 Service Water Heating Equipment Efficiency
Section C404.2 — Service Water Heating Equipment Efficiency. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] C404.2.1 Service Water Heating Pipe Insulation
Section C404.2.1 — Service Water Heating Pipe Insulation. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] C404.3 Service Water Heating Piping Insulation
Section C404.3 — Service Water Heating Piping Insulation. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] C404.3.1 Heat Trap Requirements
Section C404.3.1 — Heat Trap Requirements. 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.
[F] C404.4 Heat Traps
Section C404.4 — Heat Traps. 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.
[F] C404.5 Pipe Insulation for Service Hot Water
Section C404.5 — Pipe Insulation for Service Hot Water. This section covers plumbing system requirements. Specific sizing, materials, and installation methods are in the official code text. Refer to the official code text for complete requirements.
[F] C404.6 Heated Swimming Pool and Spa
Section C404.6 — Heated Swimming Pool and Spa. 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.
[F] C404.7 Pools and spa heating
Section C404.7 — Pools and spa heating. 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.
[F] C405.1 General - Lighting
Section C405.1 — General - Lighting. 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.
[F] C405.1.1 Lighting General
Section C405.1.1 — Lighting General. 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.
[F] C405.1.2 Lighting Controls
Section C405.1.2 — Lighting Controls. 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.
[F] C405.1.3 Exterior Lighting
Section C405.1.3 — Exterior Lighting. 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.
[F] C405.1.4 Daylight Responsive Controls
Section C405.1.4 — Daylight Responsive Controls. 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.
[F] C405.10 Electrical Energy Monitoring
Section C405.10 — Electrical Energy Monitoring. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] C405.12 Electrical Energy Monitoring
Section C405.12 — Electrical Energy Monitoring. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] C405.2 Lighting Controls
Section C405.2 — Lighting Controls. 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.
[F] C405.2.1 Building Area Method
Section C405.2.1 — Building Area Method. This section covers allowable building height, area, and number of stories based on construction type and occupancy. Refer to the official code text for complete requirements.
[F] C405.2.2 Space-by-Space Method - Lighting Power
Section C405.2.2 — Space-by-Space Method - Lighting Power. 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.
[F] C405.2.3 Daylight-Responsive Controls
Section C405.2.3 — Daylight-Responsive Controls. 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.
[F] C405.2.4 Daylight Responsive Controls
Section C405.2.4 — Daylight Responsive Controls. 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.
[F] C405.2.5 Exterior Lighting Controls
Section C405.2.5 — Exterior Lighting Controls. 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.
[F] C405.3 Commercial Lighting - Exterior Controls
Section C405.3 — Commercial Lighting - Exterior Controls. 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.
[F] C405.3.1 Interior Lighting Power
Section C405.3.1 — Interior Lighting Power. 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.
[F] C405.3.2 Lighting Power Density - Space-by-Space Method
Section C405.3.2 — Lighting Power Density - Space-by-Space Method. 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.
[F] C405.3.3 Time switch controls
Section C405.3.3 — Time switch controls. 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.
[F] C405.4 Exterior Lighting
Section C405.4 — Exterior Lighting. 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.
[F] C405.4.1 Occupancy Sensor Controls
Section C405.4.1 — Occupancy Sensor Controls. This section establishes occupancy classification and use requirements that determine applicable building code provisions. Refer to the official code text for complete requirements.
[F] C405.4.2 Daylight Zone Controls
Section C405.4.2 — Daylight Zone Controls. 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.
[F] C405.5 Electric Motors
Section C405.5 — Electric Motors. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] C405.5.1 Exterior Lighting Power
Section C405.5.1 — Exterior Lighting Power. 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.
[F] C405.6 Electrical Transformers
Section C405.6 — Electrical Transformers. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] C405.6.1 Electrical Energy Monitoring
Section C405.6.1 — Electrical Energy Monitoring. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] C405.7 Transformer efficiency
Section C405.7 — Transformer efficiency. 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.
[F] C405.7.1 Electrical Transformers Efficiency
Section C405.7.1 — Electrical Transformers Efficiency. This section covers electrical installation requirements. Specific conductor sizing, circuit protection, and installation methods are in the official code. Refer to the official code text for complete requirements.
[F] C405.8 Elevator Lighting and Ventilation
Section C405.8 — Elevator Lighting and Ventilation. This section addresses mechanical system requirements including ventilation, ductwork, and equipment specifications. Refer to the official code text for complete requirements.
[F] C405.8.1 Elevator Controls Efficiency
Section C405.8.1 — Elevator Controls Efficiency. 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.
[F] C406.1 Additional Energy Efficiency Package Options
Section C406.1 — Additional Energy Efficiency Package Options. This section addresses energy conservation requirements including thermal performance and building envelope specifications. Refer to the official code text for complete requirements.
Code sections are sourced from the International Code Council (ICC) and NFPA. Refer to ICC Digital Codes or NFPA for the authoritative source documents.