Copyright

Preface

Dedications

Acknowledgements

Chapter 1 Administration

Chapter 2 Definitions

Chapter 3 Use and Occupancy Classification

Chapter 4 Special Detailed Requirements Based on Use and Occupancy

Chapter 5 General Building Heights and Areas; Separation of Occupancies

Chapter 6 Types of Construction

Chapter 7 Fire and Smoke Protection Features

Chapter 8 Interior Finishes

Chapter 9 Fire Protection Systems

Chapter 10 Means of Egress

Chapter 11 Accessibility

Chapter 12 Interior Environment

Chapter 13 Energy Efficiency

Chapter 14 Exterior Walls

Chapter 15 Roof Assemblies and Rooftop Structures

Chapter 16 Structural Design

Chapter 17 Structural Tests and Special Inspections

Chapter 18 Soils and Foundations

Chapter 19 Concrete

Chapter 20 Aluminum

Chapter 21 Masonry

Chapter 22 Steel

Chapter 23 Wood

Chapter 24 Glass and Glazing

Chapter 25 Gypsum Board and Plaster

Chapter 26 Plastic

Chapter 27 Electrical

Chapter 28 Mechanical Systems

Chapter 29 Plumbing Systems

Chapter 30 Elevators and Conveying Systems

Chapter 31 Special Construction

Chapter 32 Encroachments Into the Public Right-Of-Way

Chapter 33 Safeguards During Construction or Demolition

Chapter 34 Reserved

Chapter 35 Referenced Standards

Appendix A Reserved

Appendix B Reserved

Appendix C Reserved

Appendix D Fire Districts

Appendix E Supplementary Accessibility Requirements

Appendix F Rodentproofing

Appendix G Flood-Resistant Construction

Appendix H Outdoor Signs

Appendix I Reserved

Appendix J Reserved

Appendix K Modified Industry Standards for Elevators and Conveying Systems

Appendix L Reserved

Appendix M Supplementary Requirements for One- And Two-Family Dwellings

Appendix N Assistive Listening Systems Performance Standards

Appendix O Reserved

Appendix P Type B+nyc Unit Toilet and Bathing Rooms Requirements

Appendix Q Modified National Standards for Automatic Sprinkler, Standpipe, Fire Pump and Fire Alarm Systems

Appendix R Acoustical Tile and Lay-In Panelceiling Suspension Systems

Appendix S Supplementary Figures for Luminous Egress Path Markings

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Unless otherwise expressly stated, the following words and terms shall, for the purposes of this code, have the meanings shown in this chapter.
Words used in the present tense include the future; words stated in the masculine gender include the feminine and neuter; the singular number includes the plural and the plural, the singular.
Where terms are not defined in this code and are defined in the New York City Fuel Gas Code, New York City Fire Code, New York City Mechanical Code, New York City Electrical Code or New York City Plumbing Code, such terms shall have the meanings ascribed to them as in those codes.
Where terms are not defined through the methods authorized by this section, such terms shall have ordinarily accepted meanings such as the context implies.
1968 OR PRIOR CODE BUILDINGS OR STRUCTURES (PRIOR CODE BUILDINGS). See Section 28-101.5 of the Administrative Code.

500-YEAR FLOOD ELEVATION. See Section G201.2.

AAC MASONRY. See Section 2102.1.

ACCESSIBLE. See Section 1102.1.

ACCESSIBLE MEANS OF EGRESS. See Section 1002.1.

ACCESSIBLE ROUTE. See Section 1102.1.

ACCESSIBLE UNIT. See Section 1102.

ACCIDENT. See Section 3302.

ACCREDITATION BODY. See Section 2302.1.

ADDITION. An alteration of a building in existence that increases its exterior dimensions, including but not limited to an extension or increase in floor area or height of the building (including an increase in area or height resulting from the construction of a rooftop structure or rooftop mechanical equipment). See Section 28-101.5 of the Administrative Code.

ADHERED MASONRY VENEER. See Section 1402.1.

ADJUSTMENT (SCAFFOLD). See Section 3302.

ADMINISTRATIVE CODE. The Administrative Code of the City of New York.

AEROSOL. See Section 307.2.

Level 1 aerosol products. See Section 307.2.

Level 2 aerosol products. See Section 307.2.

Level 3 aerosol products. See Section 307.2.

AGGREGATE. See Section 1502.1.

AGRICULTURAL, BUILDING. A structure designed and constructed to house farm implements, hay, grain, poultry, livestock or other horticultural products. This structure shall not be a place of human habitation or a place of employment where agricultural products are processed, treated or packaged, nor shall it be a place used by the public.

AIR-INFLATED STRUCTURE. See Section 3102.2.

AIR-SUPPORTED STRUCTURE. See Section 3102.2.

Double skin. See Section 3102.2.

Single skin. See Section 3102.2.

AISLE. See Section 1002.1.

AISLE ACCESSWAY. See Section 1002.1.

ALARM NOTIFICATION APPLIANCE. See Section 902.1.

ALARM SIGNAL. See Section 902.1.

ALARM VERIFICATION FEATURE. See Section 902.1.

ALLOWABLE STRESS DESIGN. See Section 1602.1.

ALTERATION. Any construction, addition, change of use or occupancy, or renovation to a building or structure in existence. See Section 28-101.5 of the Administrative Code.

ALTERNATE LOAD PATH. See Section 1614.1.

ALTERNATE LOAD PATH METHOD. See Section 1614.1.

ALTERNATING TREAD DEVICE. See Section 1002.1.

AMBULATORY HEALTH CARE FACILITY. Buildings or portions thereof used to provide medical, surgical, psychiatric, nursing or similar care on a less than 24-hour basis to individuals who are rendered incapable of self-preservation.

ANCHOR. See Section 2102.1.

ANCHOR BUILDING. See Section 402.2.

ANCHORED MASONRY VENEER. See Section 1402.1.

*ANIMAL SERVICE FACILITY. The following facilities where animals are sheltered on a 24-hour basis: annual hospitals, kennels, pounds, veterinary clinics and pet shops.

*Section 202 was amended by Local Law 78 of 2015. This law has an effective date of December 31, 2015.

ANNULAR SPACE. See Section 702.1.

ANNUNCIATOR. See Section 902.1.

APARTMENT. See Section 310.2.

APARTMENT, STUDENT. See Section 310.2.

APPROVED. Acceptable to the commissioner. In reference to construction documents, the determination by the department after full examination that submitted construction documents comply with this code and other applicable laws and rules. In reference to materials, the determination by the commissioner that material is acceptable for its intended use. See Section 28-101.5 of the Administrative Code.

APPROVED AGENCY. An established and recognized agency, or other qualified person, engaged in conducting tests or furnishing inspection services, when approved pursuant to department rules as qualified to perform or witness identified testing or inspection services. See Chapter 1 of Title 28 of the Administrative Code.

APPROVED FABRICATOR. See Section 1702.1.

APPROVED INSPECTION AGENCY. An approved agency that is approved by the department as qualified to perform one or more of the inspections required by this code. See Chapter 1 of Title 28 of the Administrative Code.

APPROVED TESTING AGENCY. An approved agency that is approved by the department as qualified to test and evaluate the performance of one or more of the materials regulated in their use by this code. Such term shall include, when approved pursuant to department rules, a third-party testing or certification agency, evaluation agency, testing laboratory, testing service, licensed concrete testing laboratory, or other entity concerned with product evaluation. See Chapter 1 of Title 28 of the Administrative Code.

ARCHITECT. A person licensed and registered to practice the profession of architecture under the Education Law of the State of New York.

ARCHITECTURAL TERRA COTTA. See Section 2102.1.

AREA. See Section 2102.1.

Bedded. See Section 2102.1.

Gross cross-sectional. See Section 2102.1.

Net cross-sectional. See Section 2102.1.

AREA, BUILDING. See Section 502.1.

AREA OF RESCUE ASSISTANCE. See Section 1002.1.

AREA OF SPECIAL FLOOD HAZARD. See Section G201.2.

AREAWAY. See Section 3201.8.

ARTICULATING BOOM CRANE. See Section 3302.1.

ASPECT RATIO. See Section 1614.1.

ASSISTED RESCUE PATH. See Section 1002.1.

ATRIUM. See Section 404.1.1.

ATTIC. The space between the ceiling beams of the top story and the roof rafters.

AUDIBLE ALARM NOTIFICATION APPLIANCE. See Section 902.1.

AUTOCLAVED AERATED CONCRETE (AAC). See Section 2102.1.

AUTOMATIC. See Section 902.1.

AUTOMATIC FIRE-EXTINGUISHING SYSTEM. See Section 902.1.

AUTOMATIC SMOKE DETECTION SYSTEM. See Section 902.1.

AUTOMATIC SPRINKLER SYSTEM. See Section 902.1.

AVERAGE AMBIENT SOUND LEVEL. See Section 902.1.

AWNING. An architectural projection that provides weather protection, identity or decoration and is wholly supported by the building to which it is attached. An awning is comprised of a lightweight frame structure over which a covering is attached.

AXIS OF ROTATION. See Section 3302.1.

AXLE. See Section 3302.1.

A-ZONE. See Section G201.2.

BACKING. See Section 1402.1.

BALCONY, EXTERIOR. See Section 1602.1.

BALED COTTON. See Section 307.2.

BALED COTTON, DENSELY PACKED. See Section 307.2.

BALLAST. See Section 1502.1.

BARRICADE. See Section 307.2.

Artificial barricade. See Section 307.2.

Natural barricade. See Section 307.2.

BASE (MOUNTING). See Section 3302.1.

BASE FLOOD. See Section G201.2.

BASE FLOOD ELEVATION. See Section G201.2.

BASEMENT. A story partly below the grade plane and having less than one-half its clear height (measured from finished floor to finished ceiling) below the grade plane (see definitions of "Story" in Section BC 202 and "Story above grade plane" in Section 502.1).

BASEMENT (FOR FLOOD ZONE PURPOSES). See Section G201.2.

BEARER (PUTLOG). See Section 3302.1.

BED JOINT. See Section 2102.1.

BEDROCK. See Section 1802.3.

Hard sound rock (Class 1a). See Section 1802.3.

Medium hard rock (Class 1b). See Section 1802.3.

Intermediate rock (Class 1c). See Section 1802.3.

Soft rock (Class 1d). See Section 1802.3.

BLEACHERS. See Section 1002.1.

BOARDER (ROOMER, LODGER). See Section 310.2.

BOILING POINT. See Section 307.2.

BOND BEAM. See Section 2102.1.

BOOM. See Section 3302.1.

BOOM POINT. See Section 3302.1.

BRACED WALL LINE. See Section 2302.1.

BRACED WALL PANEL. See Section 2302.1.

BRAKE. See Section 3302.1.

BREAKAWAY WALL. See Section G201.2.

BRICK. See Section 2102.1.

Calcium silicate (sand lime brick). See Section 2102.1.

Clay or shale. See Section 2102.1.

Concrete. See Section 2102.1.

BUCKET HOIST. See Section 3302.1.

BUILDING. Any structure used or intended for supporting or sheltering any use or occupancy. The term shall be construed as if followed by the phrase "structure, premises, lot or part thereof" unless otherwise indicated by the text. See Section 28-101.5 of the Administrative Code.

BUILDING ELEMENT. See Section 702.1.

BUILDING LINE. The line established by law, beyond which a building shall not extend, except as specifically provided by law.

BUILT-UP ROOF COVERING. See Section 1502.1.

BULKHEAD. See Section 1502.1.

BUTTRESS. See Section 2102.1.

CABARET. Any room, place or space in which any musical entertainment, singing, dancing or other similar amusement is permitted in connection with an eating and drinking establishment.

CABLE-RESTRAINED, AIR-SUPPORTED STRUCTURE. See Section 3102.2.

CABLEWAY. See Section 3302.1.

CANOPY. A permanent structure or architectural projection of rigid construction over which a covering is attached that provides weather protection, identity or decoration, which shall be structurally independent or supported by attachment to a building on one end and by not fewer than one stanchion at the outer end.

CARBON DIOXIDE EXTINGUISHING SYSTEMS. See Section 902.1.

CARBON MONOXIDE ALARM. See Section 902.1.

CARBON MONOXIDE DETECTOR. See Section 902.1.

CARBON MONOXIDE PRODUCING EQUIPMENT. See Section 902.1.

CARPORT. See Section 406.1.2.

CAST STONE. See Section 2102.1.

CEILING LIMIT. See Section 902.1.

CEILING RADIATION DAMPER. See Section 702.1.

CELL. See Sections 408.1.1 and 2102.1.

CELL TIER. See Section 408.1.1.

CELLAR. See Section 502.1.

CEMENT PLASTER. See Section 2502.1.

CERAMIC FIBER BLANKET. See Section 721.1.1.

CERTIFICATE OF APPROVAL. See Section 3302.1.

CERTIFICATE OF COMPLIANCE. See Section 1702.1 of this code and Section 28-101.5 of the Administrative Code.

CERTIFICATE OF ON-SITE INSPECTION. See Section 3302.1.

CERTIFICATE OF OPERATION. See Section 3302.1.

CHILD CARE FACILITIES. See Section 308.3.1.

CHIMNEY. See Section 2102.1.

CHIMNEY TYPES. See Section 2102.1.

High-heat appliance type. See Section 2102.1.

Low-heat appliance type. See Section 2102.1.

Masonry type. See Section 2102.1.

Medium-heat appliance type. See Section 2102.1.

CIRCULATION PATH. See Section 1102.1.

CITY. City of New York.

CLADDING. See "Components and cladding."

CLAMSHELL. See Section 3302.1.

CLAYS. See Section 1802.3.

Hard (Class 4a). See Section 1802.3.

Stiff (Class 4b). See Section 1802.3.

Medium (Class 4c). See Section 1802.3.

Soft (Class 4d). See Section 1802.3.

CLEAN AGENT. See Section 902.1.

CLEANOUT. See Section 2102.1.

CLIMBING/JUMPING. See Section 3302.

CLINIC, OUTPATIENT. See Section 304.1.1.

CLOSED-CIRCUIT TELEPHONE. See Section E102.1.

CLOSED SYSTEM. See Section 307.2.

COASTAL A-ZONE. See Section G201.2.

COLLAPSE. See Section 1614.1.

COLLAR JOINT. See Section 2102.1.

COLLECTING SAFE AREA. See Section 1002.1.

COLLECTOR. See Section 2302.1.

COMBINATION FIRE/SMOKE DAMPER. See Section 702.1.

COMBINATION SIGN. See Section H102.1.

COMBINED HEAT AND POWER SYSTEMS. See Section 502.1.

COMBUSTIBLE DUST. See Section 307.2.

COMBUSTIBLE FIBERS. See Section 307.2.

COMBUSTIBLE LIQUID. See Section 307.2.

Class II. See Section 307.2.

Class IIIA. See Section 307.2.

Class IIIB. See Section 307.2.

COMMERCIAL COOKING SYSTEM. See Section 902.1.

COMMERCIAL TRUCK-MOUNTED CRANE (BOOM TRUCK). See Section 3302.1.

COMMISSIONER. The Commissioner of Buildings of the City of New York or his or her duly authorized representative. See Section 28-101.5 of the Administrative Code.

COMMON PATH OF EGRESS TRAVEL. See Section 1002.1.

COMMON USE. See Section 1102.1.

COMPETENT PERSON. See Section 3302.1.

COMPRESSED GAS. See Section 307.2.

Nonliquefied compressed gases. See Section 307.2.

Liquefied compressed gases. See Section 307.2.

Compressed gases in solution. See Section 307.2.

Compressed gas mixtures. See Section 307.2.

COMPRESSIVE STRENGTH OF MASONRY. See Section 2102.1.

CONCEALED SPACES. See Section 702.1.

CONCRETE CARBONATE AGGREGATE. See Section 721.1.1.

CONCRETE, CELLULAR. See Section 721.1.1.

CONCRETE, LIGHTWEIGHT AGGREGATE. See Section 721.1.1.

CONCRETE, PERLITE. See Section 721.1.1.

CONCRETE, SAND-LIGHTWEIGHT. See Section 721.1.1.

CONCRETE, SILICEOUS AGGREGATE. See Section 721.1.1.

CONCRETE, VERMICULITE. See Section 721.1.1.

CONCRETE WASHOUT WATER. See Section 3302.

CONGREGATE LIVING UNIT. See Section 310.2.

CONNECTOR. See Section 2102.1.

CONSTANTLY ATTENDED LOCATION. See Section 902.1.

CONSTRUCTION. See Section 3302.1.

CONSTRUCTION DOCUMENTS. Plans and specifications and other written, graphic and pictorial documents, prepared or assembled for describing the design, location, physical characteristics, and other elements of the project necessary for obtaining a building permit. See Section 28-101.5 of the Administrative Code.

CONSTRUCTION TYPES. See Section 602.

Type I. See Section 602.2.

Type II. See Section 602.2.

Type III. See Section 602.3.

Type IV. See Section 602.4.

Type V. See Section 602.5.

CONTINUOUS GAS-DETECTION SYSTEM. See Section 415.2.

CONTROL AREA. See Section 307.2.

CONTROLLED LOW-STRENGTH MATERIAL. A self-compacted, cementitious material used primarily as a backfill in place of compacted fill.

CONVENTIONAL LIGHT-FRAME CONSTRUCTION. See Section 2302.1.

CORNER SCAFFOLD (ANGLE SCAFFOLD). See Section 3302.1.

CORRIDOR. See Section 1002.1.

CORRIDOR, INTERIOR. See Section 1002.1.

CORRIDOR, PUBLIC. See Section 1002.1.

CORROSION RESISTANCE. The ability of a material to withstand deterioration of its surface or its properties when exposed to its environment.

CORROSIVE MATERIAL. See Section 307.2.

COUNTERWEIGHT. See Section 3302.1.

COURT. An open, uncovered space, unobstructed to the sky, bounded on three or more sides by exterior building walls or other enclosing devices.

COVER. See Section 2102.1.

COVERED MALL BUILDING. See Section 402.2.

Mall. See Section 402.2.

Open mall. See Section 402.2.

Open mall building. See Section 402.2.

CRANE. See Section 3302.1.

CRAWLER CRANE. See Section 3302.1.

CRIPPLE WALL. See Section 2302.1.

CRITICAL PICK. See Section 3302.

CROSS AISLE. See Section 1002.1.

CRYOGENIC FLUID. See Section 307.2.

CURB LINE. See Section 3201.8.

CURTAIN WALL. See Section 1402.1.

CUSTODIAL CARE FACILITY. See Section 310.2.

DALLE GLASS. See Section 2402.1.

DAMPER. See Section 702.1.

DAMPPROOFING. See Section 1801.3.

DAY BOX. See Section 307.2.

DEAD END. See Section 1002.1.

DEAD LOADS. See Section 1602.1.

DEBRIS. See Section 3302.

DEBRIS NET OR NETTING. See Section 3302.1.

DECK. See Section 1602.1.

DECORATIVE GLASS. See Section 2402.1.

DECORATIVE MATERIALS. All materials applied over the building interior finish for decorative, acoustical or other effect (such as curtains, draperies, fabrics, streamers and surface coverings), and all other materials utilized for decorative effect (such as batting, cloth, cotton, hay, stalks, straw, vines, leaves, trees, moss and similar items), including foam plastics and materials containing foam plastics. Decorative materials do not include floor coverings, ordinary window shades, interior finish and materials 0.025 inch (0.64 mm) or less in thickness applied directly to and adhering tightly to a substrate.

DECORATIVE SHROUD. See Section 2102.1.

DEEP FOUNDATIONS. See Section 1801.3.

Augered-cast-in-place piles. See Section 1801.3.

Caisson piles. See Section 1801.3.

Compacted concrete piles. See Section 1801.3.

Composite Piles. See Section 1801.3.

Concrete-filled steel pipe and tube piles. See Section 1801.3.

Driven uncased piles. See Section 1801.3.

Enlarged base piles. See Section 1801.3.

H-piles. See Section 1801.3.

Helical Piles. See Section 1801.3.

Micropile. See Section 1801.3.

DEFLAGRATION. See Section 307.2.

DELUGE SPRINKLER SYSTEM. See Section 902.1.

DEMOLITION. See Section 3302.1.

DEMOLITION, FULL. See Section 3302.1.

DEMOLITION, PARTIAL. See Section 3302.1.

DEPARTMENT. Department of Buildings of the City of New York.

DERRICK. See Section 3302.1.

DESIGN EARTHQUAKE GROUND MOTION. See Section 1613.2.

DESIGN FLOOD ELEVATION. See Section G201.2.

DESIGN STRENGTH. See Sections 1602.1 and 2102.1.

DETACHED BUILDING. See Section 415.2.

DETAILED PLAIN CONCRETE STRUCTURAL WALL. See Section 1908.1.1.

DETECTABLE WARNING. See Section 1102.1.

DETECTOR, HEAT. See Section 902.1.

DETONATION. See Section 307.2.

DETOXIFICATION FACILITIES. See Section 308.3.1.

DEVELOPMENT. See Section G201.2.

DEWATERING. See Section 3302.1.

DIAPHRAGM. See Sections 1602.1 and 2302.1.

Diaphragm, blocked. See Section 1602.1.

Diaphragm boundary. See Section 1602.1.

Diaphragm chord. See Section 1602.1.

Diaphragm, flexible. See Section 1602.1.

Diaphragm, rigid. See Section 1602.1.

Diaphragm, unblocked. See Section 2302.1.

DIMENSIONS. See Section 2102.1.

Actual. See Section 2102.1.

Nominal. See Section 2102.1.

Specified. See Section 2102.1.

DIRECT AND CONTINUING SUPERVISION. See Section 28-401.3 of the Administrative Code.

DIRECT EMPLOY. See Section 28-401.3 of the Administrative Code.

DISMANTLING. See Section 3302.1.

DISPENSING. See Section 307.2.

DISPLAY SIGN. See Section H102.1.

DOOR, BALANCED. See Section 1002.1.

DRAFTSTOP. See Section 702.1.

DRAG STRUT. See "Collector" at Section 2302.1.

DRUM. See Section 3302.1.

DRY-CHEMICAL EXTINGUISHING SYSTEM. See Section 902.1.

DURATION OF LOAD. See Section 1602.1.

DWELLING. A building or structure which is occupied in whole or in part as the home, residence or sleeping place of one or more families. See Section 310.2.

DWELLING, MULTIPLE. A dwelling which is either rented, leased, let or hired out, to be occupied, or is occupied, as the residence or home of three or more families living independently of each other. A multiple dwelling does not include a building used for occupancies in Group I-2, I-3 or I-4. See Section 310.2.

DWELLING, ONE-FAMILY. Any building or structure designed and occupied exclusively for residence purposes on a long-term basis for more than a month at a time by not more than one family. One-family dwellings shall also be deemed to include a dwelling located in a series of one-family dwellings each of which faces or is accessible to a legal street or public thoroughfare, provided that each such dwelling unit is equipped as a separate dwelling unit with all essential services, and also provided that each such unit is arranged so that it may be approved as a legal one-family dwelling. See Sections 310.2 and M102.1.

DWELLING, TWO-FAMILY. Any building or structure designed and occupied exclusively for residence purposes on a long-term basis for more than a month at a time by not more than two families. Two-family dwellings shall also be deemed to include a dwelling located in a series of two-family dwellings each of which faces or is accessible to a legal street or public thoroughfare, provided that each such dwelling is equipped as a separate dwelling with all essential services, and also provided that each such dwelling is arranged so that it may be approved as a legal two-family dwelling. See Sections 310.2 and M102.1.

DWELLING UNIT. A single unit consisting of one or more habitable rooms and occupied or arranged to be occupied as a unit separate from all other units within a dwelling. See Section 310.2.

DWELLING UNIT (ACCESSIBILITY). See Section 1102.1.

DWELLING UNIT OR SLEEPING UNIT, MULTISTORY. See Section 1102.1.

DWELLING UNIT OR SLEEPING UNIT, TYPE B. See Section 1102.1.

EAVE HEIGHT, h. See Section 1609.2.

EGRESS COURT. See Section 1002.1.

ELEMENT. See Section 1614.1.

EMERGENCY ALARM SYSTEM. See Section 902.1.

EMERGENCY CONTROL STATION. See Section 415.2.

EMERGENCY ESCAPE AND RESCUE OPENING. See Section 1002.1.

EMERGENCY VOICE/ALARM COMMUNICATIONS. See Section 902.1.

EMPLOYEE WORK AREA. See Section 1102.1.

ENGINEER. A person licensed and registered to practice the profession of engineering under the Education Law of the State of New York.

ENLARGEMENT. An addition.

EQUIPMENT. See Section 3302.1.

EQUIPMENT PLATFORM. See Section 502.1.

ERECTION. See Section 3302.1.

ESSENTIAL FACILITIES. See Section 1602.1.

EXCAVATION. See Section 3302.1.

EXHAUSTED ENCLOSURE. See Section 415.2.

EXISTING BUILDING OR STRUCTURE. A completed building or structure in existence. See Section 28-101.5 of the Administrative Code.

EXISTING CONSTRUCTION. See Section G201.2.

EXIT. See Section 1002.1.

EXIT ACCESS. See Section 1002.1.

EXIT ACCESS DOORWAY. See Section 1002.1.

EXIT DISCHARGE. See Section 1002.1.

EXIT DISCHARGE, LEVEL OF. See Section 1002.1.

EXIT ENCLOSURE. See Section 1002.1.

EXIT, HORIZONTAL. See Section 1002.1.

EXIT PASSAGEWAY. See Section 1002.1.

EXPANDED VINYL WALL COVERING. See Section 802.1.

EXPLOSION. See Section 307.2.

EXPLOSIVE. See Section 307.2.

High explosive. See Section 307.2.

Low explosive. See Section 307.2.

Mass-detonating explosives. See Section 307.2.

UN/DOTn, United States Department of Transportation Class 1 Explosives. See Section 307.2.

Division 1.1. See Section 307.2.

Division 1.2. See Section 307.2.

Division 1.3. See Section 307.2.

Division 1.4. See Section 307.2.

Division 1.5. See Section 307.2.

Division 1.6. See Section 307.2.

EXTERIOR INSULATION AND FINISH SYSTEMS (EIFS). See Section 1402.1.

EXTERIOR INSULATION AND FINISH SYSTEMS (EIFS) WITH DRAINAGE. See Section 1402.1.

EXTERIOR SURFACES. See Section 2502.1.

EXTERIOR WALL. See Section 1402.1.

EXTERIOR WALL COVERING. See Section 1402.1.

EXTERIOR WALL ENVELOPE. See Section 1402.1.

F RATING. See Section 702.1.

FABRIC PARTITION. See Section 1602.1.

FABRICATED ITEM. Products and assemblies regulated by this code, that are custom manufactured, or built prior to their incorporation into the work at the job site. Fabricated items shall not include listed, labeled or approved products or assemblies. Materials produced in accordance with standard specifications referenced by this code, such as rolled structural steel shapes, steel-reinforcing bars, masonry units, and wood structural panels or in accordance with a standard, listed in Chapter 35, which provides requirements for quality control done under the supervision of a third-party quality control agency shall not be considered "fabricated items. See Section 1702.1.

FABRICATION AREA. See Section 415.2.

FACILITY. See Section 1102.1.

FACTORED LOAD. See Section 1602.1.

FAMILY. See Section 310.2.

FIBER CEMENT SIDING. See Section 1402.1.

FIBER REINFORCED POLYMER. See Section 2602.1.

Fiberglass Reinforced Polymer. See Section 2602.1.

FIBERBOARD. See Section 2302.1.

FILM SIGN. See Section H102.

FIRE ALARM BOX, MANUAL. See Section 902.1.

FIRE ALARM CONTROL UNIT. See Section 902.1.

FIRE ALARM SIGNAL. See Section 902.1.

FIRE ALARM SYSTEM. See Section 902.1.

FIRE AREA. See Section 902.1.

FIRE BARRIER. See Section 702.1.

FIRE COMMAND CENTER. See Section 902.1.

FIRE DAMPER. See Section 702.1.

FIRE DETECTOR, AUTOMATIC. See Section 902.1.

FIRE DOOR. See Section 702.1.

FIRE DOOR ASSEMBLY. See Section 702.1.

FIRE EXIT HARDWARE. See Section 1002.1.

FIRE LANE. A road or other passageway developed to allow the passage of fire apparatus. A fire lane is not necessarily intended for vehicular traffic other than fire apparatus.

FIRE PARTITION. See Section 702.1.

FIRE PROTECTION PLAN. See Section 28-101.5 of the Administrative Code.

FIRE PROTECTION RATING. See Section 702.1.

FIRE PROTECTION SYSTEM. See Section 902.1.

FIRE PUMP. See Section 902.1.

FIRE PUMP, AUTOMATIC STANDPIPE. See Section 902.1.

FIRE PUMP, FOAM. See Section 902.1.

FIRE PUMP, LIMITED SERVICE. See Section 902.1.

FIRE PUMP, SPECIAL SERVICE. See Section 902.1.

FIRE PUMP, SPRINKLER BOOSTER PUMP. See Section 902.1.

FIRE PUMP, WATER MIST SYSTEM. See Section 902.1.

FIRE RESISTANCE. See Section 702.1.

FIRE-RESISTANCE RATING. See Section 702.1.

FIRE-RESISTANT JOINT SYSTEM. See Section 702.1.

FIRE SAFETY FUNCTIONS. See Section 902.1.

FIRE SEPARATION DISTANCE. See Section 702.1.

FIRE WALL. See Section 702.1.

FIRE WINDOW ASSEMBLY. See Section 702.1.

FIREBLOCKING. See Section 702.1.

FIRECUT. See Section 2302.1.

FIREPLACE. See Section 2102.1.

FIREPLACE THROAT. See Section 2102.1.

FIRESTOPPING. See Section 702.1.

FIREWORKS. See Section 307.2.

Fireworks, 1.3G. See Section 307.2.

Fireworks, 1.4G. See Section 307.2.

FIXED BASE OPERATOR (FBO). See Section 412.2.

FIXED HEADED PILE (DEEP FOUNDATION). See Section 1801.3.

FLAME SPREAD. See Section 802.1.

FLAME SPREAD INDEX. See Section 802.1.

FLAMMABLE GAS. See Section 307.2.

FLAMMABLE LIQUEFIED GAS. See Section 307.2.

FLAMMABLE LIQUID. See Section 307.2.

Class IA. See Section 307.2.

Class IB. See Section 307.2.

Class IC. See Section 307.2.

FLAMMABLE MATERIAL. See Section 307.2.

FLAMMABLE SOLID. See Section 307.2.

FLAMMABLE VAPORS OR FUMES. See Section 415.2.

FLASH POINT. See Section 307.2.

FLIGHT. See Section 1002.1.

FLOOD OR FLOODING. See Section G201.2.

FLOOD DAMAGE-RESISTANT MATERIALS. See Section G201.2.

FLOOD INSURANCE RATE MAP (FIRM). See Section G201.2.

FLOOD INSURANCE STUDY (FIS). See Section G201.2.

FLOODPROOFING, DRY. See Section G201.2.

FLOODPROOFING, WET. See Section G201.2.

FLOODWAY. See Section G201.2.

FLOOR AREA, GROSS. See Section 1002.1.

FLOOR AREA, NET. See Section 1002.1.

FLOOR FIRE DOOR ASSEMBLY. See Section 702.1.

FLOOR SURFACE AREA. See Section 101.4.5.2 of the Administrative Code.

FLUE. See Section 2102.1.

FLUE, APPLIANCE. See Section 2102.1.

FLUE GASES. See Section 2102.1.

FLUE LINER (LINING). See Section 2102.1.

FLY GALLERY. See Section 410.2.

FOAM-EXTINGUISHING SYSTEM. See Section 902.1.

FOAM PLASTIC INSULATION. See Section 2602.1.

FOLDING AND TELESCOPIC SEATING. See Section 1002.1.

FOOD COURT. See Section 402.2.

FOOTING. See Section 3201.8.

FOUNDATION PIER. See Section 2102.1.

FREE HEADED PILE. See Section 1801.3.

FRONTAGE SPACE. See Section 502.1.

FUNCTIONALLY DEPENDENT FACILITY. See Section G201.2.

GAS CABINET. See Section 415.2.

GAS ROOM. See Section 415.2.

GEOTECHNICAL CAPACITY OF DEEP FOUNDATIONS. See Section 1801.3.

GLASS FIBERBOARD. See Section 721.1.1.

GLUED BUILT-UP MEMBER. See Section 2302.1.

GRADE (LUMBER). See Section 2302.1.

GRADE PLANE. See Section 502.1.

GRANDSTAND. See Section 1002.1.

GRANULAR SOILS. See Section 1802.3.

Dense (Class 3a). See Section 1802.3.

Medium (Class 3b). See Section 1802.3.

Loose (Class 6). See Section 1802.3.

GREEN ROOF SYSTEM. See Section 1502.1.

GRIDIRON. See Section 410.2.

GROSS LEASABLE AREA. See Section 402.2.

GROUND SIGN. See Section H102.1.

GROUP HOME. See Section 310.2.

GROUT. See Section 2102.1.

GROUTED MASONRY. See Section 2102.1.

Grouted hollow-unit masonry. See Section 2102.1.

Grouted multiwythe masonry. See Section 2102.1.

GUARD. See Sections 1002.1 and 1602.1.

GUARDRAIL SYSTEM (SCAFFOLD). See Section 3302.1.

GUY. See Section 3302.1.

GYPSUM BOARD. See Section 2502.1.

GYPSUM PLASTER. See Section 2502.1.

GYPSUM VENEER PLASTER. See Section 2502.1.

HABITABLE SPACE. See Section 1202.1.

HALOGENATED EXTINGUISHING SYSTEM. See Section 902.1.

HANDHELD DEVICE (DEMOLITION). See Section 3302.

HANDLING. See Section 307.2.

HANDRAIL. See Section 1002.1.

HARDBOARD. See Section 2302.1.

HAZARDOUS MATERIALS. See Section 307.2.

HAZARDOUS PRODUCTION MATERIAL (HPM). See Section 415.2.

HEAD JOINT. See Section 2102.1.

HEALTH HAZARD. See Section 307.2.

HEAVY DUTY SCAFFOLD. See Section 3302.

HEAVY DUTY SIDEWALK SHED. See Section 3302.1.

HEIGHT, BUILDING. See Section 502.1.

HEIGHT, WALLS. See Section 2102.1.

HELICAL PILES. See Section 1801.3.

HELIPORT. See Section 412.2.

HELISTOP. See Section 412.2.

HEREAFTER. On or after July 1, 2008.

HERETOFORE. Before July 1, 2008.

HIGH-PRESSURE BOILER. See Section 28-401.3 of the Administrative Code .

HIGH-RISE BUILDING. A building with an occupied floor located more than 75 feet (22 860 mm) above the lowest level of fire department vehicle access.

HIGHLY TOXIC MATERIAL. See Section 307.2.

HISTORIC STRUCTURE. See Section G201.2.

HOISTING EQUIPMENT. See Section 3302.1.

HOISTING MACHINE. See Section 3302.1.

HOISTING MECHANISM. See Section 3302.1.

HOISTWAY. See Section 2402.

HORIZONTAL ASSEMBLY. See Section 702.1.

HOSPITALS AND MENTAL HOSPITALS. See Section 308.3.1.

HOUSING UNIT. See Section 408.1.1.

HPM FLAMMABLE LIQUID. See Section 415.2.

HPM ROOM. See Section 415.2.

HURRICANE-PRONE REGIONS. See Section 1609.2.

IMMEDIATELY DANGEROUS TO LIFE AND HEALTH (IDLH). See Section 415.2.

IMPACT LOAD. See Section 1602.1.

IMPORTANCE FACTOR, I. See Section 1609.2.

INCOMPATIBLE MATERIALS. See Section 307.2.

INDUSTRIAL ROPE ACCESS. See Section 3302.

INERT GAS. See Section 307.2.

INITIATING DEVICE. See Section 902.1.

INSPECTION CERTIFICATE. See Section 1702.1.

INSTALLING/INSTALLATION/INSTALL (SCAFFOLD). See Section 3302.

INTENDED TO BE OCCUPIED AS A RESIDENCE. See Section 1102.1.

INTERIOR FINISH. See Section 802.1.

INTERIOR FLOOR FINISH. See Section 802.1.

INTERIOR FLOOR-WALL BASE. See Section 802.1.

INTERIOR SURFACES. See Section 2502.1.

INTERIOR WALL AND CEILING FINISH. See Section 802.1.

INTERLAYMENT. See Section 1502.1.

INTUMESCENT FIRE-RESISTANT COATINGS. See Section 1702.1.

JIB. See Section 3302.1.

JUMP (JUMPING). See Section 3302.1.

KEY ELEMENT. See Section 1614.1.

KITCHEN. See Section 1202.1.

KITCHENETTE. See Section 1202.1.

LABEL. An identification applied to material by the manufacturer that contains the name of the manufacturer, the function and performance characteristics of the material, and the name and identification of the approved agency and that indicates that the representative sample of the material has been tested and evaluated by an approved agency.

LABELED. Material to which has been attached a label, symbol or other identifying mark of the manufacturer that contains the name of the manufacturer, the function and performance characteristics of the product or material, and the name and identification of an approved agency and that indicates that a representative sample of the material has been tested and evaluated by an approved agency for compliance with nationally recognized standards or tests to determine suitable usage in a specified manner.

LABORATORY BUILDING. See Section 424.4.

LABORATORY CHEMICAL. See Section 419.4.

LABORATORY, NONPRODUCTION. See Section 424.4.

LABORATORY UNIT. See Section 424.4.

LAY. See Section 3302.1.

LETTER OF MAP AMENDMENT (LOMA). See Section G201.2.

LETTER OF MAP REVISION (LOMR). See Section G201.2.

LETTER OF MAP REVISION BASED ON FILL (LOMR-F). See Section G201.2.

LIGHT-DIFFUSING SYSTEM. See Section 2602.1.

LIGHT DUTY SCAFFOLD. See Section 3302.

LIGHT DUTY SIDEWALK SHED. See Section 3302.1.

LIGHT-FRAME CONSTRUCTION. A type of construction whose vertical and horizontal structural elements are primarily formed by a system of repetitive wood or cold-formed steel framing members.

LIGHT-TRANSMITTING PLASTIC ROOF PANELS. See Section 2602.1.

LIGHT-TRANSMITTING PLASTIC WALL PANELS. See Section 2602.1.

LIMIT STATE. See Section 1602.1.

LIMITED AREA SPRINKLER SYSTEM. See Section 902.1.

LIMITED OIL BURNING BOILER ALTERATIONS. See Section 28-101.5 of the Administrative Code.

LIMITED PLUMBING ALTERATIONS. See Section 28-101.5 of the Administrative Code.

LIMITED SPRINKLER ALTERATIONS. See Section 28-101.5 of the Administrative Code.

LIMITED STANDPIPE ALTERATIONS. See Section 28-101.5 of the Administrative Code.

LIQUEFACTION. See Section 1801.3.

LIQUID. See Section 415.2.

LIQUID STORAGE ROOM. See Section 415.2.

LIQUID USE, DISPENSING AND MIXING ROOM. See Section 415.2.

LISTED. See Section 902.1 of this code and Section 28-101.5 of the Administrative Code.

LIVE LOADS. See Section 1602.1.

LIVE LOADS (ROOF). See Section 1602.1.

LOAD (WORKING). See Section 3302.1.

LOAD AND RESISTANCE FACTOR DESIGN (LRFD). See Section 1602.1.

LOAD EFFECTS. See Section 1602.1.

LOAD FACTOR. See Section 1602.1.

LOAD RATING CHART. See Section 3302.1.

LOAD RATINGS. See Section 3302.1.

LOADS. See Section 1602.1.

LOCAL COLLAPSE. See Section 1614.1.

LOT. A portion or parcel of land considered as a unit.

LOT LINE. A line dividing one lot from another, or from a street or any public place.

LOT, TAX. A portion or parcel of land classified as such by the department of finance. Where a tax lot line shifts in a vertical plane, the commissioner shall determine the manner in which provisions of this code apply with respect to measurements to or from such tax lot lines, in order to protect public safety.

LOWER FLAMMABLE LIMIT (LFL). See Section 415.2.

LOWER LOAD BLOCK. See Section 3302.1.

LOWEST FLOOR. See Section G201.2.

MAILBOXES. See Section E102.1.

MAIN WIND FORCE-RESISTING SYSTEM. See Section 1609.2.

MAINTENANCE (SCAFFOLD). See Section 3302.

MAJOR BUILDING. See Section 3302.

MANUAL FIRE ALARM BOX. See Section 902.1.

MANUFACTURED HOME. See Section G201.2.

MANUFACTURED HOME PARK OR SUBDIVISION. See Section G201.2.

MANUFACTURER'S DESIGNATION. An identification applied to material by the manufacturer indicating that the material complies with a specified standard or set of rules.

MARK. An identification applied to a product by the manufacturer indicating the name of the manufacturer and the function of a product or material.

MARKET VALUE OF STRUCTURE. See Section G201.2.

MARQUEE. A permanent roofed structure attached to and supported by the building and that projects into the public right-of-way.

MASONRY. See Section 2102.1.

Ashlar masonry. See Section 2102.1.

Coursed ashlar. See Section 2102.1.

Glass unit masonry. See Section 2102.1.

Plain masonry. See Section 2102.1.

Random ashlar. See Section 2102.1.

Reinforced masonry. See Section 2102.1.

Solid masonry. See Section 2102.1.

Unreinforced (plain) masonry. See Section 2102.1.

MASONRY UNIT. See Section 2102.1.

Clay. See Section 2102.1.

Concrete. See Section 2102.1.

Hollow. See Section 2102.1.

Solid. See Section 2102.1.

MASS CONCRETE. See Section 1902.1.

MAST CLIMBER. See Section 3302.1.

MASTIC FIRE-RESISTANT COATINGS. See Section 1702.1.

MATERIAL HANDLING EQUIPMENT. See Section 3302.1.

MATERIAL HOIST (MATERIAL HOISTING EQUIPMENT). See Section 3302.1.

MAXIMUM CONSIDERED EARTHQUAKE GEOMETRIC MEAN (MCEG) PEAK GROUND ACCELERATIONS. See Section 1613.2.

MAXIMUM CONSIDERED EARTHQUAKE (MEC) GROUND MOTION. See Section 1613.2.

MEAN ROOF HEIGHT. See Section 1609.2.

MEANS OF EGRESS. See Section 1002.1.

MECHANICAL-ACCESS OPEN PARKING GARAGES. See Section 406.3.2.

MECHANICAL DEMOLITION EQUIPMENT. See Section 3302.

MECHANICAL EQUIPMENT SCREEN. See Section 1502.1.

MECHANICAL SYSTEMS. See Section 1613.2.

MEDIUM DUTY SCAFFOLD. See Section 3302.

MEMBRANE-COVERED CABLE STRUCTURE. See Section 3102.2.

MEMBRANE-COVERED FRAME STRUCTURE. See Section 3102.2.

MEMBRANE PENETRATION. See Section 702.1.

MEMBRANE-PENETRATION FIRESTOP. See Section 702.1.

MENTAL HOSPITALS. See Section 308.3.1.

MERCHANDISE PAD. See Section 1002.1.

METAL COMPOSITE MATERIAL (MCM). See Section 1402.1.

METAL COMPOSITE MATERIAL (MCM) SYSTEM. See Section 1402.1.

METAL ROOF PANEL. See Section 1502.1.

METAL ROOF SHINGLE. See Section 1502.1.

MEZZANINE. See Section 502.1.

MICROPILE. See Section 1801.3.

MINERAL BOARD. See Section 721.1.1.

MINERAL FIBER. See Section 702.1.

MINERAL WOOL. See Section 702.1.

MINOR ALTERATIONS. See Section 3302.1.

MOBILE CRANE. See Section 3302.1.

MOBILE SCAFFOLD. See Section 3302.1.

MODIFIED BITUMEN ROOF COVERING. See Section 1502.1.

MORTAR. See Section 2102.1.

MORTAR, SURFACE-BONDING. See Section 2102.1.

MULTILEVEL ASSEMBLY SEATING. See Section 1102.1.

MULTIPLE-STATION ALARM DEVICE. See Section 902.1.

MULTIPLE-STATION SMOKE ALARM. See Section 902.1.

MULTIPOINT ADJUSTABLE SUSPENDED SCAFFOLD. See Section 3302.1.

MULTISTORY UNIT. See Section 1102.1.

NAILING, BOUNDARY. See Section 2302.1.

NAILING, EDGE. See Section 2302.1.

NAILING, FIELD. See Section 2302.1.

NATIONAL GEODETIC VERTICAL DATUM (NGVD). See Section G201.2.

NATURAL GAS ALARM. See Section 902.1.
*Section 202 was amended by: Local Law 157 of 2016.

NATURALLY DURABLE WOOD. See Section 2302.1.

Decay resistant. See Section 2302.1.

Termite resistant. See Section 2302.1.

NEW CONSTRUCTION. See Section G201.2.

NOMINAL LOADS. See Section 1602.1.

NOMINAL SIZE (LUMBER). See Section 2302.1.

NONCOMBUSTIBLE MEMBRANE STRUCTURE. See Section 3102.2.

NONRESIDENTIAL (FOR FLOOD ZONE PURPOSES). See Section G201.2.

NORMAL TEMPERATURE AND PRESSURE (NTP). See Section 415.2.

NORTH AMERICAN VERTICAL DATUM (NAVD). See Section G201.2.

NOSING. See Section 1002.1.

NOTATIONS. See Sections 1602.1 and 2102.1.

NURSING HOMES. See Section 308.3.1.

OCCUPANCY. The purpose or activity for which a building or space is used or is designed, arranged or intended to be used.

OCCUPANT LOAD. See Section 1002.1.

OCCUPANT SENSOR. A device that detects the presence or absence of people within an area and causes lighting, equipment, or appliances to be regulated accordingly.

OCCUPIABLE SPACE. See Section 1202.1.

OPEN EXTERIOR SPACE. See Section 1002.1.

OPEN PARKING GARAGE. See Section 406.3.2.

OPEN PARKING LOT. See Section 406.7.2.

OPEN SYSTEM. See Section 307.2.

ORDINARY PRECAST STRUCTURAL WALL. See Section 1908.1.1.

ORDINARY REINFORCED CONCRETE STRUCTURAL WALL. See Section 1908.1.1.

ORDINARY REPAIRS. See Section 28-105.4.2.1 of the Administrative Code.

ORDINARY STRUCTURAL PLAIN CONCRETE WALL. See Section 1908.1.1.

ORGANIC PEROXIDE. See Section 307.2.

Class I. See Section 307.2.

Class II. See Section 307.2.

Class III. See Section 307.2.

Class IV. See Section 307.2.

Class V. See Section 307.2.

Unclassified detonable. See Section 307.2.

ORTHOGONAL. See Section 1613.2.

OTHER STRUCTURES. See Section 1602.1.

OUTRIGGER (CRANE). See Section 3302.1.

OUTRIGGER (SCAFFOLD). See Section 3302.1.

OUTRIGGER BEAM (THRUSTOUT). See Section 3302.1.

OUTRIGGER SCAFFOLD. See Section 3302.1.

OWNER. Any person, agent, firm, partnership, corporation or other legal entity having a legal or equitable interest in, or control of the premises.

OXIDIZER. See Section 307.2.

Class 1. See Section 307.2.

Class 2. See Section 307.2.

Class 3. See Section 307.2.

Class 4. See Section 307.2.

OXIDIZING GAS. See Section 307.2.

PANEL (PART OF A STRUCTURE). See Section 1602.1.

PANIC HARDWARE. See Section 1002.1.

PARKING GARAGE. A structure or portion of a structure, other than a private garage or carport, used for the parking or storage of motor vehicles.

PARTIAL DEMOLITION. See Section 3302.1.

PARTICLE BOARD. See Section 2302.1.

PATIENT CARE AREA (FOR FLOOD ZONE PURPOSES). See Section G201.2.

PENETRATION FIRESTOP. See Section 702.1.

PENTHOUSE. See Section 1502.1.

PERMIT. An official document or certificate issued by the commissioner that authorizes performance of specified work or activity.

PERSON. An individual, partnership, corporation, or other legal entity.

PERSONAL CARE SERVICE. See Section 310.2.

PERSONNEL HOIST. See Section 3302.1.

PHOTOLUMINESCENT. See Section 1002.1.

PHOTOSENSOR. A device that detects the presence of visible light.

PHYSICAL HAZARD. See Section 307.2.

PHYSIOLOGICAL WARNING THRESHOLD LEVEL. See Section 415.2.

PINRAIL. See Section 410.2.

PLASTIC, APPROVED. See Section 2602.1.

PLASTIC GLAZING. See Section 2602.1.

PLATFORM. See Sections 410.2 and 3302.1.

POLE SIGN. See Section H102.1.

POSITIVE ROOF DRAINAGE. See Section 1502.1.

POSTFIRE SMOKE PURGE SYSTEM. See Section 902.1.

POSTFIRM DEVELOPMENT. See Section G201.2.

POSTFIRM STRUCTURE. See Section G201.2.

POWER BUGGIES. See Section 3302.1.

PREFABRICATED WOOD I-JOIST. See Section 2302.1.

PREFIRM DEVELOPMENT. See Section G201.2.

PREFIRM STRUCTURE. See Section G201.2.

PREMISES. Land, improvements thereon, or any part thereof.

PRESIGNAL SYSTEM. See Section 902.1.

PRESSURIZATION. See Section 909.1.1.

PRESTRESSED MASONRY. See Section 2102.1.

PRIMARY STRUCTURAL FRAME. The primary structural frame shall include all of the following structural members:

1. The columns;

2. Structural members having direct connections to the columns, including girders, beams, trusses and spandrels;

3. Members of the floor construction and roof construction having direct connections to the columns; and

4. Bracing members that are essential to the vertical stability of the primary structural frame under gravity loading, shall be considered part of the primary structural frame whether or not the bracing member carries gravity loads.

PRISM. See Section 2102.1.

PRIVATE GARAGE. See Section 406.1.2.

PROJECTING SIGN. See Sections 3201.8 and H102.1.

PROSCENIUM WALL. See Section 410.2.

PUBLIC ENTRANCE. See Section 1102.1.

PUBLIC-USE AREAS. See Section 1102.1.

PUBLIC WAY. See Section 1002.1.

PYROPHORIC MATERIAL. See Section 307.2.

PYROTECHNIC MATERIAL. See Section 307.2.

QUALIFIED PERSON. See Section 3302.1.

RAMP. See Section 1002.1.

RAMP-ACCESS OPEN PARKING GARAGES. See Section 406.3.2.

RECORD DRAWINGS. See Section 902.1.

RECREATIONAL VEHICLE. See Section G201.2.

REFLECTIVE PLASTIC CORE FOIL INSULATION. An insulation material packaged in rolls, that is less than 1/2 inch (1.7 mm) thick, with at least one exterior low emittance surface (0.1 or less) and a core material containing voids or cells.

REFUGE AREA. See Section 1002.1.

REGISTERED DESIGN PROFESSIONAL. An architect or engineer.

REGISTERED DESIGN PROFESSIONAL OF RECORD. The registered design professional who prepared or supervised the preparation of applicable construction documents filed with the department.

RELIGIOUS WORSHIP, PLACE OF. A building or portion thereof intended for the performance of religious services.

REMOVING/REMOVAL/REMOVE (SCAFFOLD). See Section 3302.

REPAIR. The reconstruction or renewal of any part of an existing building for the purpose of its maintenance.

REPAIR (SCAFFOLD). See Section 3302.

REPLACEMENT (SCAFFOLD). See Section 3302.

REQUIRED. Required by this code.

REQUIRED STRENGTH. See Sections 1602.1 and 2102.1.

REROOFING. See Section 1502.1.

RESIDENTIAL CARE/ASSISTED LIVING FACILITIES. See Section 310.2.

RESIDENTIAL (FOR FLOOD ZONE PURPOSES). See Section G201.2.

RESISTANCE FACTOR. See Section 1602.1.

RESPONSE RATIO. See Section 1614.1.

RESTRICTED ENTRANCE. See Section 1102.1.

RETAINING WALL. See Section 1801.3.

RETRACTABLE AWNING. See Section 3105.2.

RISK CATEGORY. See definition for "Structural Occupancy Category." See Section 1602.1.

RISK-TARGETED MAXIMUM CONSIDERED EARTHQUAKE (MCER) GROUND MOTION RESPONSE ACCELERATIONS. See Section 1613.2.

ROOF ASSEMBLY. See Section 1502.1.

ROOF COVERING. See Section 1502.1.

ROOF COVERING SYSTEM. See Section 1502.1.

ROOF DECK. See Section 1502.1.

ROOF RECOVER. See Section 1502.1.

ROOF REPLACEMENT. See Section 1502.1.

ROOF SIGN. See Section H102.1.

ROOF VENTILATION. See Section 1502.1.

ROOFTOP STRUCTURE. See Section 1502.1.

ROOMING HOUSE. See Section 310.2.

ROPE. See Section 3302.1.

ROTATION. See Section 1614.1.

RUBBLE MASONRY. See Section 2102.1.

Coursed rubble. See Section 2102.1.

Random rubble. See Section 2102.1.

Rough or ordinary rubble. See Section 2102.1.

RUNBACK STRUCTURE. See Section 3302.1.

RUNNING BOND. See Section 2102.1.

SAFE AREA. See Section 1002.1.

SAFETY NETTING SYSTEM. See Section 3302.

SALLYPORT. See Section 408.1.1.

SAND DUNES. See Section G201.2.

SANDY GRAVEL AND GRAVELS. See Section 1802.3.

Dense (Class 2a). See Section 1802.3.

Medium (Class 2b). See Section 1802.3.

Loose (Class 6). See Section 1802.3.

SCAFFOLD. See Section 3302.1.

SCAFFOLD CONTROLLING ENTITY. See Section 3302.

SCISSOR STAIR. See Section 1002.1.

SEATING SECTION. See Section 1002.1.

SECONDARY MEMBERS. The following structural members shall be considered secondary members and not part of the primary structural frame:

1. Structural members not having direct connections to the columns;

2. Members of the floor construction not having direct connections to the columns; and

3. Bracing members other than those that are part of the primary structural frame.

SEISMIC DESIGN CATEGORY. See Section 1613.2.

SEISMIC-FORCE-RESISTING SYSTEM. See Section 1613.2.

SELF-CLOSING. See Section 702.1.

SELF-LUMINOUS. See Section 1002.1.

SELF-SERVICE STORAGE FACILITY. See Section 1102.1.

SERVICES. See Section 1102.1.

SERVICE CORRIDOR. See Section 415.2.

SERVICE ENTRANCE. See Section 1102.1.

SHADED X-ZONE. See Section G201.2.

SHAFT. See Section 702.1.

SHAFT ENCLOSURE. See Section 702.1.

SHALLOW FOUNDATION. See Section 1801.3.

SHEAR WALL. See Sections 2102.1 and 2302.1.

Detailed plain masonry shear wall. See Section 2102.1.

Intermediate reinforced masonry shear wall. See Section 2102.1.

Ordinary plain masonry shear wall. See Section 2102.1.

Pre-stressed masonry shear wall. See Section 2102.1.

Ordinary reinforced masonry shear wall. See Section 2102.1.

Shear wall, perforated. See Section 2302.1.

Shear wall segment, perforated. See Section 2302.1.

SHELL. See Section 2102.1.

SHORE, MULTI-STAGE. Formwork assemblies on a single level comprised of discontinuous vertical post elements stacked on top of each other.

SHOTCRETE. See Section 1913.1.

SIGN. See Sections 3201.8 and H102.1.

SIGN STRUCTURE. See Section H102.1.

SILTS AND CLAY SLITS. See Section 1804.2.1.

Dense (Class 5a). See Section 1804.2.1.

Medium (Class 5b). See Section 1804.2.1.

Loose (Class 6). See Section 1804.2.1.

SINGLE-PLY MEMBRANE. See Section 1502.1.

SINGLE-POINT ADJUSTABLE SUSPENSION SCAFFOLD. See Section 3302.1.

SINGLE-STATION SMOKE ALARM. See Section 902.1.

SITE. See Section 1102.1.

SITE CLASS. See Section 1613.2.

SITE COEFFICIENTS. See Section 1613.2.

SITE-FABRICATED STRETCH SYSTEM. See Section 802.1.

SKYLIGHT, UNIT. A factory-assembled, glazed fenestration unit, containing one panel of glazing material that allows for natural lighting through an opening in the roof assembly while preserving the weather-resistant barrier of the roof.

SKYLIGHTS AND SLOPED GLAZING. Glass or other transparent or translucent glazing material installed at a slope of 15 degrees (0.26 rad) or more from vertical. Glazing material in skylights, including unit skylights, solariums, sunrooms, roofs and sloped walls, are included in this definition.

SLEEPING UNIT. See Section 310.2.

SLEEPING UNIT (ACCESSIBILITY). See Section 1102.1.

SMOKE. See Section 909.1.1.

SMOKE ALARM. See Section 902.1.

SMOKE BARRIER. See Section 702.1.

SMOKE COMPARTMENT. See Section 702.1.

SMOKE CONTROL MODE. See Section 909.1.1.

SMOKE CONTROL SYSTEM, MECHANICAL. See Section 909.1.1.

SMOKE CONTROL SYSTEM, PASSIVE. See Section 909.1.1.

SMOKE CONTROL ZONE. See Section 909.1.1.

SMOKE DAMPER. See Section 702.1.

SMOKE DETECTOR. See Section 902.1.

SMOKE-DEVELOPED INDEX. See Section 802.1.

SMOKE PARTITION. See Section 702.1.

SMOKE-PROTECTED ASSEMBLY SEATING. See Section 1002.1.

SMOKEPROOF ENCLOSURE. See Section 902.1.

SOIL AND FOUNDATION WORK (SOIL OR FOUNDATION WORK). See Section 3302.

SOLID. See Section 415.2.

SPECIAL AMUSEMENT BUILDING. See Section 411.2.

SPECIAL FLOOD HAZARD AREA. See Section G201.2.

SPECIAL INSPECTION. See Section 1702.1.

SPECIAL INSPECTION, CONTINUOUS. See Section 1702.1.

SPECIAL INSPECTION, PERIODIC. See Section 1702.1.

SPECIAL INSPECTOR. An individual employed by a special inspection agency having required qualifications and authorized by department rules to perform or witness particular special inspections required by this code or by the rules of the department, including but not limited to a qualified registered design professional so authorized. See Section 1702.1 and Chapter 1 of Title 28 of the Administrative Code.

SPECIFIC LOCAL LOAD. See Section 1614.1.

SPECIFIC LOCAL RESISTANCE METHOD. See Section 1614.1.

SPECIFIED. See Section 2102.1.

SPECIFIED COMPRESSIVE STRENGTH OF MASONRY (f'm). See Section 2102.1.

SPRAYED FIRE-RESISTANT MATERIALS. See Section 1702.1.

STACK BOND. See Section 2102.1.

STACK EFFECT. See Section 909.1.1.

STAGE. See Section 410.2.

STAIR. See Section 1002.1.

STAIRWAY. See Section 1002.1.

STAIRWAY, EXTERIOR. See Section 1002.1.

STAIRWAY, INTERIOR. See Section 1002.1.

STAIRWAY, SPIRAL. See Section 1002.1.

STANDARD CUBIC FEET (SCF). See Section 307.2.

STANDARD GUARDRAIL SYSTEM (SCAFFOLD). See Section 3302.1.

STANDPIPE, TYPES OF. See Section 902.1.

Automatic dry. See Section 902.1.

Automatic wet. See Section 902.1.

Manual dry. See Section 902.1.

Manual wet. See Section 902.1.

Semiautomatic dry. See Section 902.1.

STANDPIPE SYSTEM, CLASSES OF. See Section 902.1.

Class I system. See Section 902.1.

Class II system. See Section 902.1.

Class III system. See Section 902.1.

START OF CONSTRUCTION. See Section G201.2.

STEEL CONSTRUCTION, COLD-FORMED. See Section 2202.1.

STEEL JOIST. See Section 2202.1.

STEEL MEMBER, STRUCTURAL. See Section 2202.1.

STEEP SLOPE. A roof slope greater than two units vertical in 12 units horizontal (17-percent slope).

STONE MASONRY. See Section 2102.1.

Ashlar stone masonry. See Section 2102.1.

Rubble stone masonry. See Section 2102.1.

STORAGE CABINET. See Section 424.4.

STORAGE ROOM. See Section 424.4.

STORM SHELTER. See Section 423.2.

Community storm shelter. See Section 423.2.

Residential storm shelter. See Section 423.2.

STORY. That portion of a building included between the upper surface of a floor and the upper surface of the floor or roof next above (also see "Basement" and "Mezzanine"). It is measured as the vertical distance from top to top of two successive tiers of beams or finished floor surfaces and, for the topmost story, from the top of the floor finish to the top of the ceiling joists or, where there is not a ceiling, to the top of the roof rafters.

STORY ABOVE GRADE PLANE. See Section 502.1.

STREET. See Section 3201.8.

STREET FLOOR. A floor, usually the principal entrance floor, that is not more than one-half story above or below grade at the location from which egress is provided to the street.

STREET LINE. See Section 3201.8.

STRENGTH DESIGN. See Section 1602.1.

STRENGTH, NOMINAL. See Sections 1602.1 and 2102.1.

STRENGTH, REQUIRED. See Sections 1602.1 and 2102.1.

STRIPPING OPERATIONS. See Section 3303.2.

STRUCTURAL COMPOSITE LUMBER. See Section 2302.1.

Laminated veneer lumber (LVL). See Section 2302.1.

Parallel strand lumber (PSL). See Section 2302.1.

STRUCTURAL GLUED-LAMINATED TIMBER. See Section 2302.1.

STRUCTURAL NET (STRUCTURAL NETTING). See Section 3302.1.

STRUCTURAL OCCUPANCY CATEGORY. See Section 1602.1.

STRUCTURE. That which is built or constructed, including among others: buildings, stadia, tents, reviewing stands, platforms, stagings, observation towers, radio towers, tanks, trestles, open sheds, shelters, fences and display signs. See Section 28-101.5 of the Administrative Code.

SUBDIAPHRAGM. See Section 2302.1.

SUBSTANTIAL DAMAGE. See Section G201.2.

SUBSTANTIAL IMPROVEMENT. See Section G201.2.

SUITE. See Section 1002.1.

SUN CONTROL DEVICE. An architectural projection that provides protection against solar radiation entering a building through glazed areas and is supported by the building to which it is attached. Sun control device includes, but is not limited to, a fixed, retractable or rotating sun control device. A fixed sun control device has no moving parts and is typically composed of horizontal overhangs or vertical fins. A retractable sun control device extends or retracts, and in the extended position casts a shadow on designated portions of the building. A rotating sun control device may be of fixed or adjustable length and pivots at its base. Sun control device shall not include awnings and canopies.

SUNROOM. See Section 1202.1.

SUPERINTENDENT OF CONSTRUCTION. See Section 28-101.5 of the Administrative Code.

SUPERSTRUCTURE. See Section 3302.1.

SUPERVISING STATION. See Section 902.1.

SUPERVISORY SERVICE. See Section 902.1.

SUPERVISORY SIGNAL. See Section 902.1.

SUPERVISORY SIGNAL-INITIATING DEVICE. See Section 902.1.

SUPPORTED SCAFFOLD. See Section 3302.1.

SUSPENDED SCAFFOLD. See Section 3302.

SUSPENDED SCAFFOLD FOREMAN. See Section 3302.1.

SUSTAINED WIND. See Section 3302.1.

SWIMMING POOL. See Section 3109.2.

SWIMMING POOL, PRIVATE. See Section 3109.2.

SWIMMING POOL, PUBLIC. See Section 3109.2.

SWING. See Section 3302.1.

T RATING. See Section 702.1.

TEMPORARY CONSTRUCTION. See Section 3302.

TEMPORARY SIGN. See Section H102.1.

TENABLE ENVIRONMENT. See Section 909.1.1.

TENT. A structure, enclosure or shelter, with or without side-walls or drops, constructed of fabric or pliable material supported in any manner except by air or the contents it protects.

THERMAL ISOLATION. See Section 1202.1.

THERMALLY ISOLATED SUNROOM ADDITION. See Section 1202.1.

THERMOPLASTIC MATERIAL. See Section 2602.1.

THERMOSETTING MATERIAL. See Section 2602.1.

THIN-BED MORTAR. See Section 2102.1.

THROUGH PENETRATION. See Section 702.1.

THROUGH-PENETRATION FIRESTOP SYSTEM. See Section 702.1.

TIE-DOWN (HOLD-DOWN). See Section 2302.1.

TIE, LATERAL. See Section 2102.1.

TIE, WALL. See Section 2102.1.

TILE. See Section 2102.1.

TILE, STRUCTURAL CLAY. See Section 2102.1.

TIRES, BULK STORAGE OF. See Section 902.1.

TOOL. See Section 3302.

TOWER. See Section 3302.1.

TOWER CRANE. See Section 3302.1.

TOWNHOUSE. A single-family dwelling constructed in a group of three or more attached units in which each unit extends from the foundation to roof and with open space on at least two sides.

TOXIC MATERIAL. See Section 307.2.

TRANSIENT. See Section 310.2.

TRANSIENT AIRCRAFT. See Section 412.2.

TRANSIENT LODGING. See Section E102.1.

TRANSIT. See Section 3302.1.

TRAVEL. See Section 3302.1.

TREATED WOOD. See Section 2302.1.

Fire-retardant-treated wood. See Section 2302.1.

Preservative-treated wood. See Section 2302.1.

TRIM. See Section 802.1.

TROUBLE SIGNAL. See Section 902.1.

TWO-POINT SUSPENDED SCAFFOLD (SWING STAGE). See Section 3302.1.

TYPE B UNIT. See Section 1102.1.

TYPE B+NYC UNIT. See Section 1102.1.

UNDERLAYMENT. See Section 1502.1.

UNDERPINNING. See Section 1801.3.

UNENCLOSED PERIMETER. See Section 3302.

UNSTABLE (REACTIVE) MATERIAL. See Section 307.2.

Class 1. See Section 307.2.

Class 2. See Section 307.2.

Class 3. See Section 307.2.

Class 4. See Section 307.2.

USE (USED). The purpose for which a building, structure, or space is occupied or utilized, unless otherwise indicated by the text. Use (used) shall be construed as if followed by the words "or is intended, arranged, or designed to be used."

UTILITY COMPANY OR PUBLIC UTILITY COMPANY. See Section 28-101.5 of the Administrative Code.

UTILITY CORPORATION OR PUBLIC UTILITY CORPORATION. See Section 28-101.5 of the Administrative Code.

VALUE (OF ALTERATIONS, TO DETERMINE REQUIRED ACCESSIBILITY). See Section 1102.1.

VALUE (OF ALTERATIONS, TO DETERMINE REQUIRED FIRE PROTECTION). See Section 902.1.

VALUE (OF EXISTING BUILDING OR SPACE). The value of an existing building shall be determined at the option of the applicant on the basis of one and one-quarter times the current assessed valuation of the building, as adjusted by the current State equalization rate, or on the basis of the current replacement cost of the building. The value of an existing space shall be determined on the basis of the current replacement cost of the space. Satisfactory evidence of current replacement cost shall be submitted to the commissioner. Where the alteration includes an enlargement, the value of the existing building shall be determined without including the value of the enlargement.

VAPOR-PERMEABLE MEMBRANE. A material or covering having a permeance rating of 5 perms (52.9 10-10 kg/Pa.s. m2) or greater, when tested in accordance with the dessicant method using Procedure A of ASTM E 96. A vapor-permeable material or covering permits the passage of moisture vapor.

VAPOR RETARDER CLASS. A measure of a material or assembly's ability to limit the amount of moisture that passes through that material or assembly. Vapor retarder class shall be defined using the desiccant method of ASTM E 96 as follows:

Class I: 0.1 perm or less.

Class II: 0.1 < perm < 1.0 perm.

Class III: 1.0 < perm < 10 perm.

VARIANCE. See Section G201.2.

VAULT. See Section 3201.8.

VEHICLE BARRIER SYSTEM. See Section 1602.1.

VEHICULAR GATE. See Section 3110.2.

VENEER. See Section 1402.1.

VENTILATION. The natural or mechanical process of supplying conditioned or unconditioned air to, or removing such air from, any space.

VINYL SIDING. See Section 1402.1.

VISIBLE ALARM NOTIFICATION APPLIANCE. See Section 902.1.

V-ZONE. See Section G201.2.

WALKABLE FLOOR (CONCRETE CONSTRUCTION). See Section 3302.

WALKABLE FLOOR (PRECAST CONCRETE CONSTRUCTION). See Section 3302.

WALKABLE FLOOR (STEEL CONSTRUCTION). See Section 3302.

WALKWAY, PEDESTRIAN. A walkway used exclusively as a pedestrian trafficway.

WALL. See Section 2102.1.

Cavity wall. See Section 2102.1.

Composite wall. See Section 2102.1.

Dry-stacked, surface-bonded wall. See Section 2102.1.

Masonry-bonded hollow wall. See Section 2102.1.

Parapet wall. See Section 2102.1.

WALL, LOAD-BEARING. Any wall meeting either of the following classifications:

1. Any metal or wood stud wall that supports more than 100 pounds per linear foot (1459 N/m) of vertical load in addition to its own weight.

2. Any masonry or concrete wall that supports more than 200 pounds per linear foot (2919 N/m) of vertical load in addition to its own weight.

WALL, NONLOAD-BEARING. Any wall that is not a load-bearing wall.

WALL PIER. See Section 1908.1.1.

WALL SIGN. See Section H102.1.

WATER-REACTIVE MATERIAL. See Section 307.2.

Class 1. See Section 307.2.

Class 2. See Section 307.2.

Class 3. See Section 307.2.

WATER-RESISTIVE BARRIER. See Section 1402.1.

WATERPROOFING. See Section 1801.3.

WEATHER-EXPOSED SURFACES. See Section 2502.1.

WEB. See Section 2102.1.

WET-CHEMICAL EXTINGUISHING SYSTEM. See Section 902.1.

WHEELCHAIR SPACE. See Section 1102.1.

WHEEL MOUNTED CRANE (MULTIPLE CONTROL STATIONS). See Section 3302.1.

WHEEL MOUNTED CRANE (SINGLE CONTROL STATION). See Section 3302.1.

WIND-BORNE DEBRIS REGION. See Section 1609.2.

WINDER. See Section 1002.1.

WIRE BACKING. See Section 2502.1.

WIRELESS PROTECTION SYSTEM. See Section 902.1.

WOOD SHEAR PANEL. See Section 2302.1.

WOOD STRUCTURAL PANEL. See Section 2302.1.

Composite panels. See Section 2302.1.

Oriented strand board (OSB). See Section 2302.1.

Plywood. See Section 2302.1.

WORKING DECK (CONCRETE CONSTRUCTION). See Section 3302.

WORKING DECK (DEMOLITION). See Section 3302.

WORKING DECK (PRECAST CONCRETE CONSTRUCTION). See Section 3302.

WORKING DECK (STEEL CONSTRUCTION). See Section 3302.

WORK NOT CONSTITUTING MINOR ALTERATIONS OR ORDINARY REPAIRS. See Section 28-105.4.2.1 of the Administrative Code.

WORKSTATION. See Section 415.2.

WRITING (WRITTEN). See Section 28-101.5 of the Administrative Code.

WRITTEN NOTICE. See Section 28-101.5 of the Administrative Code.

WYTHE. See Section 2102.1.

YARD. An open space, other than a court, unobstructed from the ground to the sky, except where specifically provided by this code, on the lot on which a building is situated.

ZONE. See Section 902.1.

ZONE, NOTIFICATION. See Section 902.1.

ZONING RESOLUTION. See Section 28-101.5 of the Administrative Code.

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