Adopts With Amendments
Chapter 9
Vents
International Plumbing Code 2021
[F] 901 Venting General
Section 901 — Venting 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] 901.1 Scope Vents
Section 901.1 — Scope Vents. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 901.1.1 Venting Systems Scope
Section 901.1.1 — Venting Systems 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] 901.1a Scope - Vents Detail
Section 901.1a — Scope - Vents Detail. This section establishes the scope, applicability, and administrative provisions for enforcement of this code. Refer to the official code text for complete requirements.
[F] 901.2 Trap Seal Protection
Section 901.2 — Trap Seal Protection. 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] 901.2.1 Trap Seal Protection
Section 901.2.1 — Trap Seal Protection. 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] 901.3 Vent Stacks Required
Section 901.3 — Vent Stacks 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] 901.4 Frost Closure Protection
Section 901.4 — Frost Closure Protection. 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] 901.5 Frost Closure
Section 901.5 — Frost Closure. 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] 902.1 Vent Pipe Connections
Section 902.1 — Vent Pipe Connections. 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] 902.1.1 Materials for Vent Piping
Section 902.1.1 — Materials for Vent Piping. 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] 902.1a Individual Vents
Section 902.1a — Individual Vents. 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] 902.2 Vent Stack Size
Section 902.2 — Vent Stack Size. 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] 902.3 Vent Stack Connection
Section 902.3 — Vent Stack Connection. 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] 903 Vent Termination
Section 903 — Vent Termination. 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] 903.1 Vent Termination - Roof Extension
Section 903.1 — Vent Termination - Roof Extension. 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] 903.1.1 Vent Pipe Sizing
Section 903.1.1 — Vent Pipe Sizing. 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] 903.1.2 Vent Pipe Grading
Section 903.1.2 — Vent Pipe Grading. 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] 903.1a Vent Pipe Sizing
Section 903.1a — Vent Pipe Sizing. 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] 903.2 Frost Closure Vents
Section 903.2 — Frost Closure Vents. 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] 903.2.1 Grade of Vent Piping
Section 903.2.1 — Grade of Vent Piping. 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] 903.3 Frost Closure Prevention
Section 903.3 — Frost Closure Prevention. 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] 903.3.1 Vent Termination
Section 903.3.1 — Vent Termination. 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] 903.4 Prohibited Use
Section 903.4 — Prohibited Use. This section establishes occupancy classification and use requirements that determine applicable building code provisions. Refer to the official code text for complete requirements.
[F] 903.4.1 Frost Closure
Section 903.4.1 — Frost Closure. 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] 903.5 Vent Termination Height
Section 903.5 — Vent Termination Height. 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] 903.5.1 Clearance from Opening
Section 903.5.1 — Clearance from Opening. 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] 904.1 Individual Vent
Section 904.1 — Individual Vent. 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] 904.1.1 Circuit Venting
Section 904.1.1 — Circuit Venting. 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] 904.1a Vent Termination
Section 904.1a — Vent Termination. 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] 904.2 Dry Vent Material
Section 904.2 — Dry Vent Material. 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] 904.3 Frost Closure
Section 904.3 — Frost Closure. 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] 904.4 Vent Header
Section 904.4 — Vent Header. 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] 905.1 Vent Pipe Connection - Distance of Trap from Vent
Section 905.1 — Vent Pipe Connection - Distance of Trap from Vent. 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] 905.1.1 Stack Vent
Section 905.1.1 — Stack Vent. 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] 905.2 Frost or Snow Closure Prevention
Section 905.2 — Frost or Snow Closure Prevention. 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] 906.1 Vents - Vent Connection to Drainage System
Section 906.1 — Vents - Vent Connection to Drainage System. 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] 906.1.1 Branch Vent
Section 906.1.1 — Branch Vent. 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] 906.2 Vent Connection at Base
Section 906.2 — Vent Connection at Base. 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] 907.1 Stack Vents and Vent Stacks
Section 907.1 — Stack Vents and Vent Stacks. 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] 907.1.1 Circuit Vent
Section 907.1.1 — Circuit Vent. 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] 907.2 Common Vent
Section 907.2 — Common Vent. 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] 908.1 Wet Venting - Horizontal
Section 908.1 — Wet Venting - Horizontal. 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] 908.1.1 Vent Headers
Section 908.1.1 — Vent Headers. 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] 908.2 Wet Vent Sizing
Section 908.2 — Wet Vent Sizing. 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] 909.1 Circuit Venting
Section 909.1 — Circuit Venting. 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] 909.1.1 Waste Stack Vent
Section 909.1.1 — Waste Stack Vent. 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] 909.2 Waste Stack Vent Size
Section 909.2 — Waste Stack Vent Size. 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] 910.1 Combination Drain and Vent System
Section 910.1 — Combination Drain and Vent System. 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] 910.1.1 Air Admittance Valves
Section 910.1.1 — Air Admittance Valves. 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] 910.2 Circuit Venting
Section 910.2 — Circuit Venting. 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] 910.2.1 AAV Location
Section 910.2.1 — AAV Location. 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] 910.3.1 AAV Access
Section 910.3.1 — AAV Access. 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] 911.1 Vents - Circuit Venting
Section 911.1 — Vents - Circuit Venting. 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] 911.1.1 Combination Drain and Vent
Section 911.1.1 — Combination Drain and Vent. 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] 911.2 Island Fixture Venting
Section 911.2 — Island Fixture Venting. 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] 912.1 Combination Drain and Vent System
Section 912.1 — Combination Drain and Vent System. 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] 912.1.1 Vent Header
Section 912.1.1 — Vent Header. 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] 913.1 Vent Pipe Sizing
Section 913.1 — Vent Pipe Sizing. 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] 913.1.1 Island Fixture Venting
Section 913.1.1 — Island Fixture Venting. 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] 913.2 Frost or Snow Closure
Section 913.2 — Frost or Snow Closure. 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] 914.1 Vent Headers
Section 914.1 — Vent Headers. 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] 914.2 Air Admittance Valve Installation
Section 914.2 — Air Admittance Valve Installation. 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] 915.1 Wet Venting
Section 915.1 — Wet Venting. 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] 915.2 Air Admittance Valve Location
Section 915.2 — Air Admittance Valve Location. 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] 916.1 Vent for Future Fixtures
Section 916.1 — Vent for Future Fixtures. 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] 916.1.1 Waste Stack Vent
Section 916.1.1 — Waste Stack Vent. 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] 916.2 AAV Location
Section 916.2 — AAV Location. 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] 916.3 AAV Prohibited Locations
Section 916.3 — AAV Prohibited Locations. 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] 917.1 Vents - Air Admittance Valves
Section 917.1 — Vents - Air Admittance Valves. 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] 918.1 Vent Headers
Section 918.1 — Vent Headers. 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.
Code sections are sourced from the International Code Council (ICC) and NFPA. Refer to ICC Digital Codes or NFPA for the authoritative source documents.