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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
Section MC 401: General
401.1 Scope.
401.2 Ventilation required.
401.3 When required.
401.4 Intake opening location.
401.4.1 Required dampers in intake openings.
401.5 Intake opening protection.
401.6 Contaminant sources.
401.6.1 Wind-driven rain.
Section MC 402: Natural Ventilation
Section MC 403: Mechanical Ventilation
Section MC 404: Enclosed Parking Garages
Section MC 405: Systems Control
Section MC 406: Ventilation of Uninhabited Spaces
Section MC 407: Ambulatory Care Facilities and Group I-2 Occupancies
Section MC 408: Ventilation of Non-Production Chemical Laboratories
Chapter 5: Exhaust Systems
Chapter 6: Duct Systems
Chapter 7: Combustion, Ventilation, and Dilution Air
Chapter 8: Chimneys and Vents
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
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Appendix A: Unconsolidated Local Laws
The Rules of the City of New York
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Chapter 4: Ventilation
Section MC 401: General
401.1 Scope.
This chapter shall govern the ventilation of spaces within a building intended to be occupied. Mechanical exhaust systems, including exhaust systems serving clothes dryers and cooking appliances; hazardous exhaust systems; dust, stock and refuse conveyor systems; subslab soil exhaust systems; smoke control systems; energy recovery ventilation systems and other systems specified in Section 502 shall comply with Chapter 5.

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