Skip to code content (skip section selection)
Compare to:
New York City Overview
The New York City Charter
NEW YORK CITY CHARTER
The New York City Administrative Code
NEW YORK CITY ADMINISTRATIVE CODE
Title 1: General Provisions
Title 2: City of New York
Title 3: Elected officials
Title 4: Property of the City
Title 5: Budget; Capital Projects
Title 6: Contracts, Purchases and Franchises
Title 7: Legal Affairs
Title 8: Civil Rights
Title 9: Criminal Justice
Title 10: Public Safety
Title 11: Taxation and Finance
Title 12: Personnel and Labor
Title 13: Retirement and Pensions
Title 14: Police
Title 15: Fire Prevention and Control
Title 16: Sanitation
Title 16-A: [Commercial Waste Removal]
Title 16-B: Commercial Waste Zones
Title 17: Health
Title 18: Parks
Title 19: Transportation
Title 20: Consumer and Worker Protection
Title 20-A: [Shipboard Gambling]
Title 21: Social Services
Title 21-A: Education
Title 22: Economic Affairs
Title 23: Communications
Title 24: Environmental Protection and Utilities
Title 25: Land Use
Title 26: Housing and Buildings
Title 27: Construction and Maintenance
Title 28: New York City Construction Codes
Chapter 1: Administration
Chapter 2: Enforcement
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
Section MC 501: General
Section MC 502: Required Systems
502.1 General.
502.1.1 Exhaust location.
502.1.2 Fuel-dispensing areas.
502.1.3 Equipment, appliance and service rooms.
502.1.4 Hazardous exhaust.
502.2 Aircraft fueling and defueling.
502.3 Battery-charging areas for powered vehicles and equipment.
502.4 Stationary storage battery systems.
502.4.1 Hydrogen limit in rooms.
502.4.2 Ventilation rate in rooms.
502.4.3 Supervision.
502.5 Valve-regulated lead-acid batteries in cabinets.
502.5.1 Hydrogen limit in cabinets.
502.5.2 Ventilation rate in cabinets.
502.5.3 Supervision.
502.6 Dry cleaning plants.
502.6.1 Type II and III systems.
502.6.2 Type IV and V systems.
502.6.3 Spotting and pretreating.
502.7 Application of flammable finishes.
502.7.1 During construction.
502.7.2 Limited spraying spaces.
502.7.3 Flammable vapor areas.
502.7.3.1 Operation.
502.7.3.2 Recirculation.
502.7.3.3 Air velocity.
502.7.3.3.1 Open face or open front spray booth.
502.7.3.3.2 Enclosed spray booth or spray room with openings for product conveyance.
502.7.3.4 Ventilation obstruction.
502.7.3.5 Independent ducts.
502.7.3.6 Fan motors and belts.
502.7.4 Dipping operations.
502.7.5 Electrostatic apparatus.
502.7.6 Powder coating.
502.7.7 Floor resurfacing operations.
502.7.8 Resin application areas.
502.8 Hazardous materials - general requirements.
502.8.1 Storage in excess of the maximum allowable quantities.
502.8.1.1 System requirements.
502.8.2 Gas rooms, exhausted enclosures and gas cabinets.
502.8.3 Indoor dispensing and use.
502.8.4 Indoor dispensing and use - point sources.
502.8.5 Closed systems.
502.9 Hazardous materials - requirements for specific materials.
502.9.1 Compressed gases - medical gas systems.
502.9.2 Corrosives.
502.9.3 Cryogenics.
502.9.4 Explosives.
502.9.5 Flammable and combustible liquids.
502.9.5.1 Vaults.
502.9.5.2 Storage rooms and warehouses.
502.9.5.3 Cleaning machines.
502.9.5.4 Use, dispensing and mixing.
502.9.5.5 Bulk plants or terminals.
502.9.5.5.1 General.
502.9.5.5.2 Basements and pits.
502.9.5.5.3 Dispensing of Class I liquids.
502.9.6 Highly toxic and toxic liquids.
502.9.6.1 Treatment system.
502.9.6.2 Open and closed systems.
502.9.7 Highly toxic and toxic compressed gases - any quantity.
502.9.7.1 Gas cabinets.
502.9.7.2 Exhausted enclosures.
502.9.8 Highly toxic and toxic compressed gases - quantities exceeding the maximum allowable quantity per control area.
502.9.8.1 Ventilated areas.
502.9.8.2 Local exhaust for portable tanks.
502.9.8.3 Piping and controls - stationary tanks.
502.9.8.4 Gas rooms.
502.9.8.5 Treatment system.
502.9.8.6 Process equipment.
502.9.9 Ozone gas generators.
502.9.10 LP-gas distribution facilities.
502.9.11 Silane gas.
502.10 Hazardous production materials (HPM).
502.10.1 Where required.
502.10.2 Penetrations.
502.10.3 Treatment systems.
502.11 Motion picture projectors.
502.11.1 Projectors with an exhaust discharge.
502.11.2 Projectors without exhaust connection.
502.12 Organic coating processes.
502.13 Public garages.
502.14 Motor vehicle operation.
502.15 Repair garages.
502.16 Repair garages for natural gas- and hydrogen-fueled vehicles.
502.16.1 Design.
502.16.2 Operation.
502.17 Tire rebuilding or recapping.
502.17.1 Buffing machines.
502.18 Specific rooms.
502.19 Indoor firing ranges.
502.20 Manicure and pedicure stations.
502.21 Domestic kitchen exhaust systems.
502.22 Nonproduction chemical laboratories.
Section MC 503: Motors and Fans
Section MC 504: Clothes Dryer Exhaust
Section MC 505: Domestic Kitchen Exhaust Equipment
Section MC 506: Commercial Kitchen Hood Ventilation System Ducts and Exhaust Equipment
Section MC 507: Commercial Kitchen Hoods
Section MC 508: Commercial Kitchen Makeup Air
Section MC 509: Fire Suppression Systems
Section MC 510: Hazardous Exhaust Systems
Section MC 511: Dust, Stock and Refuse Conveying Systems
Section MC 512: Subslab Soil Exhaust Systems
Section MC 513: Smoke Control Systems
Section MC 514: Energy Recovery Ventilation Systems
Section MC 515: Postfire Smoke Purge 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
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
Title 1: Department of Buildings
Title 2: Board of Standards and Appeals
Title 3: Fire Department
Title 6: Department of Consumer and Worker Protection
Title 9: Procurement Policy Board Rules
Title 12: Franchise and Concession Review Committee
Title 15: Department of Environmental Protection
Title 16: Department of Sanitation
Title 17: Business Integrity Commission
Title 19: Department of Finance
Title 20: Tax Appeals Tribunal
Title 21: Tax Commission
Title 22: Banking Commission
Title 24: Department of Health and Mental Hygiene
Title 25: Department of Mental Health and Retardation [Repealed]
Title 28: Housing Preservation and Development
Title 29: Loft Board
Title 30: Rent Guidelines Board
Title 31: Mayor's Office of Homelessness and Single Room Occupancy
Title 34: Department of Transportation
Title 35: Taxi and Limousine Commission
Title 38: Police Department
Title 38-A: Civilian Complaint Review Board
Title 39: Department of Correction
Title 40: Board of Correction
Title 41: Department of Juvenile Justice
Title 42: Department of Probation
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
Title 67: Department of Information Technology and Telecommunications
Title 68: Human Resources Administration
Title 69: Department of Aging
Title 70: In Rem Foreclosure Release Board
Title 71: Voter Assistance Commission
Title 72: Office of Emergency Management
Title 73: Civic Engagement Commission
Title 74: Community Hiring
502.3 Battery-charging areas for powered vehicles and equipment.
Ventilation shall be provided in an approved manner in battery-charging areas to prevent a dangerous accumulation of flammable gases.
   Exception: Lithium-ion batteries shall not require ventilation.
502.4 Stationary storage battery systems.
Stationary storage battery systems, as regulated by Section 608 of the New York City Fire Code, shall be provided with ventilation in accordance with this chapter, Section 502.4.3 and either Section 502.4.1 or 502.4.2.
   Exception: Lithium-ion batteries shall not require ventilation.
502.4.1 Hydrogen limit in rooms.
For flooded lead acid, flooded nickel cadmium and VRLA batteries, the ventilation system shall be designed to limit the maximum concentration of hydrogen to 1.0 percent of the total volume of the room.
502.4.2 Ventilation rate in rooms.
Continuous ventilation shall be provided at a rate of not less than 1 cubic foot per minute per square foot (cfm/ft 2 ) (0.00508 m 3 /(s • m 2 )) of floor area of the room.
502.4.3 Supervision.
Mechanical ventilation systems required by Section 502.4 shall be supervised with proof of airflow by a central, proprietary system or remote station service or shall initiate an audible and visual signal at a constantly attended on-site location.

Disclaimer: The Codes and other documents that appear on this site may not yet reflect the most current legislation or rules adopted by the City. In addition, certain textual errors and omissions may temporarily exist, resulting from problems in the source database provided to American Legal and from which this website was created. Although these errors and omissions are being corrected, any user discovering any such error is invited to please contact the publisher at NYC.editor@amlegal.com or at 800-445-5588 and/or the New York City Law Department at NYCCodeRulesCharter@law.nyc.gov.

Hosted by: American Legal Publishing

Back to Code Library
Previous Doc
Next Doc