Project Categories: Building Systems Installation & Modifications: Plumbing - Buildings

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Acronym Glossary

Find Building Data

Construction in My Neighborhood

Forms & Applications

Research Construction Professionals

Project Guidelines

Get Job Status Updates

Check an After-Hour Variance

File a Complaint

Resolve a Summons or Violation

Register for eFiling

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Project Categories: Building Systems Installation & Modifications - Plumbing

Plumbing consists of the new installation, maintenance, repair, modification, extension or alteration of waste, domestic water, gas, sprinkler off the domestic water service (30 or less sprinkler heads), or standpipe (not connected to a sprinkler) systems in any building. Plumbing systems installation and modification in general cover five separate subsystems, and work may involve any one, or a combination of these systems:

Subsystem 1 – involves water that brings fresh water into the building

Subsystem 2 – the sanitary drainage that takes out wastewater out of the building

Subsystem 3 – gas that fuel various equipment or appliances

Subsystem 4 – involves storm water drainage

Subsystem 5 – used for life safety, includes sprinkler off domestic and standpipe when no sprinkler heads are attached

Installation and modification work may also include plumbing fixtures, equipment, finishes and appliances, which are required elements of these subsystems and often critical in completing the project. For example, water heaters or furnaces / boilers, used for heating the building, and appliances including oven / cooking range in kitchen and dryers in laundry room, make up equipment and appliances under these subsystem. In outlining the plumbing project requirements, plumbing work may include any of the following major subsystems:

Potable Water Piping, devices and meters

Wastewater and Sanitary Drainage

Gas Work Piping, devices and meters

Storm Water and Drywell

Sprinkler off domestic (30 or less sprinkler heads) and standpipe (when no sprinkler heads are attached)

Work Without a Permit

New York City Administrative Code clarifies work exempt from permit. For example, replacing an existing plumbing fixture is minor work that could be performed without a work permit.

In general, a Licensed Plumber may do the following without a permit:

Initial Emergency work

Minor alterations and ordinary repairs

Ordinary plumbing work

Categories of work that may not require a permit

Hiring Professionals

The Department encourages anyone hiring a Construction Professional to check both their disciplinary and voluntary surrender records, as well as current license status. Property owners are responsible for any work performed on their buildings and should ensure qualified and experienced professionals that will comply with all requirements of the NYC Building Code and Zoning Resolution are hired.

The Know Your Construction Professional Directory provides disciplinary and voluntary surrender records for licensed Plumbers, Professional Engineers (P.E.) and Registered Architects (R.A.), Registrants and other Skilled Trades. Search our master list of all construction professionals monitored by the Department or search by category:

New York City-Licensed Master Plumbers

New York State-Licensed Professional Engineers – use the links below to contact the Structural Engineers Association of New York (SEAoNY) or the American Council of Engineering Companies of New York (ACEC) to find a New York State-licensed Professional Engineer:

Structural Engineers Association of New York

American Council of Engineering Companies

New York City NSPE Chapters

New York State-Registered Architects – use the link below to find contact information for your local American Institute of Architects (AIA) chapter to find a New York State Registered Architect:

List of New York AIA Chapters

How to Select an AIA Architect

Licensed Plumber

The NYC Administrative Code defines Limited Plumbing Alteration as a repair of a plumbing or fuel gas piping system, which can only be performed by a Licensed Plumber. If the plumbing project exceeds Limited Plumbing Alteration work, a Professional Engineer (P.E.) or Registered Architect (R.A.) must submit drawings for approval by the Department to obtain a work permit.

Registered Design Professional

If the plumbing project exceeds the work allowed under the categories of Limited Plumbing Alteration work as described in NYC Administrative Code, a P.E. or R.A. must submit drawings, for approval by the Department, to obtain a work permit.

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