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// CODE SNIPPET

903.1 Stack Required

NYC Plumbing Code 2014 > 9 Vents > 903 Vent Stacks and Stack Vents > 903.1 Stack Required
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Every building in which plumbing is installed shall have at least one 4-inch (102 mm) vent stack (or stack vent). Such stack shall run undiminished in size and as directly as possible from the building drain through to the open air above the roof.

903.1.1 Connection to Drainage System

A vent stack shall connect to the building drain or to the base of a drainage stack in accordance with Section 903.4. A stack vent shall be an extension of the drainage stack.

Related Code Sections


903.1 Vents, Stack Required
Every building in which plumbing is installed shall have at least one 4-inch (102 mm) vent stack (or stack vent). Such stack shall run undiminished ...
NYC Plumbing Code 2014 > 9 Vents > 903 Vent Stacks and Stack Vents > 903.1 Stack Required
903.1 Vents, Stack Required
Every building in which plumbing is installed shall have at least one 4 inch vent stack (or stack vent). Such stack shall run undiminished in size ...
NYC Plumbing Code 2008 > 9 Vents > 903 Vent Stacks and Stack Vents > 903.1 Stack Required
904.2 Vents, Vent Stack Required
A vent stack shall be required for every drainage stack that has three branch intervals or more ...
NYC Plumbing Code 2022 > 9 Vents > 904 Outdoor Vent Extensions > 904.2 Vent Stack Required
711.2.1 Sanitary Drainage, Omission of Vents for Horizontal Stack Offsets
Vents for horizontal stack offsets required by Section 711.2 shall not be required where the stack and its offset are one pipe size larger than ...
NYC Plumbing Code 2022 > 7 Sanitary Drainage > 711 Offsets in Drainage Piping in Buildings of Five Stories or More > 711.2 Horizontal Stack Offsets > 711.2.1 Omission of Vents for Horizontal Stack Offsets
711.3.1 Sanitary Drainage, Omission of Vents for Horizontal Stack Offsets
Vents for horizontal stack offsets required by Section 711.3 shall not be required where the stack and its offset are one pipe size larger than ...
NYC Plumbing Code 2014 > 7 Sanitary Drainage > 711 Offsets in Drainage Piping in Buildings of Five Stories or More > 711.3 Horizontal Stack Offsets > 711.3.1 Omission of Vents for Horizontal Stack Offsets
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