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Title 28: New York City Construction Codes
Chapter 1: Administration
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Chapter 3: Maintenance of Buildings
Chapter 4: Licensing and Registration of Businesses, Trades and Occupations Engaged in Building Work
Chapter 5: Miscellaneous Provisions
Chapter 6: New York City Plumbing Code
Chapter 7: New York City Building Code
Chapter 8: New York City Mechanical Code
Article 801: Enactment and Update of the New York City Mechanical Code
§ 28-801.1 Update.
§ 28-801.2 Enactment of the New York City Mechanical Code.
Chapter 1: Administration
Chapter 2: Definitions
Chapter 3: General Regulations
Chapter 4: Ventilation
Chapter 5: Exhaust Systems
Chapter 6: Duct Systems
Chapter 7: Combustion, Ventilation, and Dilution Air
Chapter 8: Chimneys and Vents
Section MC 801: General
801.1 Scope.
801.1.1 Existing chimneys and vents.
801.1.1.1 Responsibility of owner of taller building.
801.1.1.1.1 Chimney and vent plan.
801.1.1.2 Protection of draft.
801.1.1.3 Written notification, plans and required documents.
801.1.1.3.1 First notice.
801.1.1.3.2 Second notice.
801.1.1.3.3 Plans and required documentation for alteration work.
801.1.1.4 Approval.
801.1.1.5 Refusal of consent.
801.1.1.6 Procedure.
801.1.1.7 Existing violations.
801.1.1.8 Variance.
801.2 General.
801.2.1 Design.
801.2.2 Outlets.
801.2.3 Support.
801.2.4 Oil-fired appliances.
801.2.5 Gas fired appliances.
801.3 Masonry chimneys.
801.4 Positive flow.
801.5 Design.
801.6 Minimum size of chimney or vent.
801.7 Solid fuel-burning appliance flues.
801.8 Abandoned inlet openings.
801.9 Positive pressure.
801.10 Connection to fireplace.
801.10.1 Closure and access.
801.10.2 Connection to factory-built fireplace flue.
801.10.3 Connection to masonry fireplace flue.
801.11 Multiple solid fuel-burning appliances prohibited.
801.12 Chimney entrance.
801.13 Cleanouts.
801.14 Connections to exhauster.
801.15 Fuel-fired appliances.
801.16 Flue lining.
801.16.1 Residential and low-heat appliances (general).
801.17 Space around lining.
801.18 Existing chimneys and vents.
801.18.1 Size.
801.18.2 Flue passageways.
801.18.3 Cleanout.
801.18.4 Clearances.
801.18.4.1 Fireblocking.
801.19 Multistory prohibited.
801.20 Reserved.
801.21 Termination requirements.
801.22 Drains.
801.23 Draft controls.
801.23.1 Draft control devices.
801.23.2 Additional devices.
801.23.3 Thermal safety (spill) switches.
801.23.4 Location.
801.23.5 Positioning.
801.24 Obstructions.
801.25 Outdoor chimneys and vents.
Section MC 802: Vents
Section MC 803: Connectors
Section MC 804: Direct-Vent, Integral Vent and Mechanical Draft Systems
Section MC 805: Factory-Built Chimneys
Section MC 806: Metal Chimneys
Section MC 807: Changes In Appliance Fuels
Section MC 808: Reduction of Flue Size
Section MC 809: Chimney Supported from Equipment
Section MC 810: Test Run and Smoke Test
Section MC 811: Exhaust Gases from Internal Combustion Engines and Turbines
Chapter 9: Specific Appliances and Equipment
Chapter 10: Boilers, Water Heaters and Pressure Vessels
Chapter 11: Refrigeration
Chapter 12: Hydronic Piping
Chapter 13: Fuel-Oil Piping and Storage
Chapter 14: Solar Systems
Chapter 15: Referenced Standards
Appendix A: Chimney Connector Pass-Throughs
Appendix B: Reserved
Appendix C: Fuel Oil Storage Tank Venting Options
Chapter 9: New York City Fuel Gas Code
Chapter 10: New York City Energy Code
Chapter 11: The New York City Electrical Code
Title 29: New York City Fire Code
Title 30: Emergency Management
Title 31: Department of Veterans' Services
Title 32: Labor and Employment
Title 33: Investigations
Title 34: Racial Equity
Appendix A: Unconsolidated Local Laws
The Rules of the City of New York
THE RULES OF THE CITY OF NEW YORK
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Title 24: Department of Health and Mental Hygiene
Title 25: Department of Mental Health and Retardation [Repealed]
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Title 29: Loft Board
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Title 31: Mayor's Office of Homelessness and Single Room Occupancy
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Title 35: Taxi and Limousine Commission
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Title 40: Board of Correction
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Title 43: Mayor
Title 44: Comptroller
Title 45: Borough Presidents
Title 46: Law Department
Title 47: Commission on Human Rights
Title 48: Office of Administrative Trials and Hearings (OATH)
Title 49: Department of Records and Information Services
Title 50: Community Assistance Unit
Title 51: City Clerk
Title 52: Campaign Finance Board*
Title 53: Conflicts of Interest Board
Title 55: Department of Citywide Administrative Services
Title 56: Department of Parks and Recreation
Title 57: Art Commission
Title 58: Department of Cultural Affairs
Title 60: Civil Service Commission
Title 61: Office of Collective Bargaining
Title 62: City Planning
Title 63: Landmarks Preservation Commission
Title 66: Department of Small Business Services
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Title 68: Human Resources Administration
Title 69: Department of Aging
Title 70: In Rem Foreclosure Release Board
Title 71: Voter Assistance Commission
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Title 74: Community Hiring
801.2.3 Support.
Chimneys and vents shall not be supported by the equipment they serve unless such equipment has been specifically designed for such loads.
801.2.4 Oil-fired appliances.
Oil-fired appliances shall be vented in accordance with this code and NFPA 31.
801.2.5 Gas fired appliances.
Gas fired appliances shall be vented in accordance with the New York City Fuel Gas Code.
801.3 Masonry chimneys.
Masonry chimneys shall be constructed in accordance with the New York City Building Code.
801.4 Positive flow.
Venting systems shall be designed and constructed so as to develop a positive flow adequate to convey all combustion products to the outside atmosphere.
801.5 Design.
Venting systems shall be designed in accordance with this chapter and comply with the requirements of the New York City Air Pollution Control Code.
801.6 Minimum size of chimney or vent.
Except as otherwise provided for in this chapter, the size of the chimney or vent, serving a single appliance, except engineered systems, shall have a minimum area equal to the area of the appliance connection.
801.7 Solid fuel-burning appliance flues.
The cross-sectional area of a flue serving a solid fuel-burning appliance shall be not greater than three times the cross-sectional area of the appliance flue collar or flue outlet.

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