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> Antenna Systems - 810
> Agricultural Buildings - 547
> Air Conditioning & Refrigeration Equipment - 440
> Aircraft Hangers - 513
> Amplification Equipment... - 640
> Amusement Attractions, Control Systems for Permanent - 522
> Appliances - 422
> Armored Cable - Type AC - 320
> Assembly Occupancies - 518
> Audience Areas of Motion Picture & Television Studios - 520
> Audio Signal Processing Equipment... - 640
> Auxiliary Gutters - 366
> Batteries, Stationary Standby - 480
> Boatyards - 555
> Bonding & Grounding - 250
> Boxes - 314
> Branch Circuits Not Over 1K A/C - 210
> Branch Circuits Over 1K A/C - 235
> Branch Circuits Outside - 225
> Bulk Storage Plants - 515
> Busways - 368
> Cabinets - 312
> Cannabis Oil - 512
> Conduit Bodies - 314
> Cutout Boxes - 312
> Cablebus - 370
> Cable Trays - 392
> Cables for Power Limited & Fault Managed Circuits - 722
> Calculations - 220
> Capacitors - 460
> Car Chargers - 625
> Carnivals, Circuses, Fairs & Similar Events - 525
> Cellular Concrete Floor Raceways - 372
> Cellular Metal Floor Raceways - 374
> Class 1 Power Limited Circuits... - 724
> Class 2 & 3 Power Limited Circuits - 725
> Class 4 Fault Managed Power Systems - 726
> Class I Locations - 501
> Class II Locations - 502
> Class III Locations - 503
> Coating Processes with Flammable or Combustible Materials- 516
> Concealed Knob & Tube Wiring - 394
> Conductors - 310
> Control Systems for Permanent Amusement Attractions - 522
> Commercial Garages, Repair & Storage - 511
> Communication Circuits - 805
> Communication Systems - 800
> Community Antenna Television & Radio Distribution Systems - 820
> Cranes & Hoists - 610
> Critical Operations Power Systems (COPS) - 708
> Data Centers, Modular - 646
> Definitions - 100
> Device Boxes - 314
> Dielectric & Induction Heating Equipment
> Dipping Processes with Flammable or Combustible Materials- 516
> Docking Facilities... - 555
> Dumbwaiters... - 620
> Electric Vehicle Power Transfer Systems "Car Chargers" - 625
> Electrical Metallic Tubing - Type EMT Tubing - 358
> Electrical Nonmetallic Tubing - Type ENT Tubing - 362
> Electric Signs & Outline Lighting - 600
> Electric Welders - 630
> Electrically Driven or Controlled Irrigation Machines - 675
> Electrified Truck Parking Space Electrical Wiring Systems - 626
> Electroplating - 669
> Electrolytic Cells - 668
> Elevators - 620
> Emergency Management Systems - 750
> Emergency Systems - 700
> Energy Storage Systems - 706
> Equipment Over 1,000 Volts AC, 1,500 Volts DC - 495
> Escalators... - 620
> Feeders - 215
> Feeders Over 1K A/C - 235
> Feeders Outside - 225
> Fire Alarm Systems - 760
> Fire Pumps - 695
> Fire Resistive Cable Systems - 728
> Fittings - 314
> Fixed Electric Heating Equipment for Pipelines & Vessels - 427
> Fixed Electric Space Heating Equipment - 424
> Fixed Outdoor Electric Deicing & Snow Melting Equipment - 426
> Fixed Resistance & Electrode Industrial Process Heating Equipment - 425
> Fixture Wires - 402
> Flat Cable Assemblies - Type FC - 322> Floating Building - 555
> Flexible Bus Systems - 371
> Flexible Cords & Flexible Cables - 400
> Flexible Metal Conduit - Type FMC Conduit - 348
> Flexible Metallic Tubing - ​Type FMT Tubing - 360
> Fountains... - 680
> Fuel Cell System - 692
> Garages, Commercial, Repair & Storage - 511
> General, Installations - 110
> Generators - 445
> Grounded Conductors - 200
> Grounding & Bonding - 250
> Gutters, Auxiliary - 366
> Handhole Enclosures - 314
> Hazardous (Classified) Locations, Classes I, II & III, Divisions 1 & 2 - 500
> Health Care Facilities "Hospitals" - 517
> Heating Equipment, ​Fixed Electric Space - 424
> Heating Equipment, Fixed Resistance & Electrode Industrial Process - 425
> High Density Polyethylene Conduit - Type HDPE Conduit - 353
> Hoists - 610
> Hot Tubs - 680
> Information Technology Equipment - 645
> Induction & Dielectric Heating Equipment
> Industrial Control Panels - 409
> Industrial Machinery - 670
> Installations, General - 110
> Intrinsically Safe Systems - 504
> Instrumentation Tray Cable - Type ITC - 335
> Introduction - Art 90
> Integrated Electrical Systems - 685
> Integrated Gas Spacer Cable - Type IGS - 326
> Intermediate Metal Conduit - Type IMC - 342
> Insulated Bus Pipe - Type IBP Pipe - 369
> Interconnected Electric Power Production Sources - 705
> Irrigation Machines, Electrically Driven or Controlled - 675
> Junction Boxes - 314
> Lampholders - 410
> Lamps - 410
> Large-Scale Photovoltaic (PV) Electric Supply Stations - 691
> Legally Required Standby Systems - 701
> Lighting - Low Voltage - 411
> Luminaires - 410
> Luminaires, Lampholders & Lamps - 410
> Liquidtight Flexible Metal Conduit - Type LFMC Conduit - 350
> Liquidtight Flexible Nonmetallic Conduit - Type LFNC Conduit - 356
> Low Voltage Lighting - 411
> Low Voltage Suspended Ceiling Power Distribution Systems - 393
> Manufactured Buildings & Relocatable Structures - 545
> Manufactured Homes - 550
> Manufactured Wiring Systems - 604
> Marinas - 555
> Medium Voltage Conductors- 315
> Messenger Supported Wiring - 396
> Metal Clad Cable - Type MC - 320
> Metal Wireways - 376
> Meter Sockets - 312
> Mineral Insulated, Metal Sheathed Cable - Type MI - 332
> Mobile Homes, Manufactured Homes & Mobile Home Parks - 550
> Modular Data Centers - 646
> Motion Picture & Television Studios & Remote Locations - 530
> Motion Picture Projection Rooms - 540
> Motors, Motors Circuits & Controllers - 430
> Motor Fuel Dispensing Facilities "Gas Stations" - 514
> Moving Walks... - 620
> Multioutlet Assembly - 380
> Natural & Artificially Made Bodies of Water - 682
> Network Powered Broadband Communications Systems - 830
> Nonmetallic Extensions - 382
> Nonmetallic Sheathed Cable - Types NM & MNC - 334
> Nonmetallic Underground Conduit with Conductors - Type NUCC Conduit - 354
> Nonmetallic Wireways - 378
> Office Furnishings - 605
> Open Wiring on Insulators - 398
> Optical Fiber Cables - 770
> Optional Standby Systems - 702
> Outdoor Overhead Conductors over 1,000 Volts - 395
> Outlet Boxes - 314
> Outline Lighting - 600
> Outside Branch Circuits & Feeders - 225
> Overcurrent Protection - 240
> Overcurrent Protection Over 1K A/C - 245
> Overvoltage Protection - 242
> P Cable - Type P Cable - 337
> Panelboards - 408
> Park Trailers - 552
> Performance Areas - 520
> Pipe Organs - 650
> Phase Converters - 455
> Pipelines & Vessels, Fixed Electric Heating Equipment for - 427
> Platform Lifts... - 620
> Power & Control Tray Cable - Type TC - 336
> Premises Powered Broadband Communication System - 840
> Printing Processes with Flammable or Combustible Materials- 516
> Pull Boxes - 314
> Receptacles, Cord Connectors & Attachment Plugs (Caps) - 406
> Recreational Vehicles & Recreational Vehicle Parks - 551
> Refrigeration Equipment, Air Conditioning & - 440
> Reinforced Thermosetting Resin Conduit - Type RTRC Conduit - 355
> Reproduction Equipment... "Audio" - 640 
> Resistors & Reactors - 470
> Rigid Metal Conduit - Type RMC  Conduit - 344
> Rigid Polyvinyl Chloride Conduit - Type PVC Conduit - 352
> Sensitive Electronic Equipment - 647
> Service Entrance Cable - Type SE & USE - 338
> Services - 230
> Services Over 1K A/C - 235
> Signs - 600
> Solar, Large-Scale Photovoltaic (PV) Electric Supply Stations - 691
> Solar Photovoltaic (PV) Systems - 690
> Snow Melting Equipment, ​Fixed Outdoor Electric Deicing & - 426
> Spray Applications with Flammable or Combustible Materials- 516
> Stand Alone Systems - 710
> Standby Systems, Legally Required - 701
> Standby Systems, Optional - 702
> Stairway Chairlifts... - 620
> Stationary Standby Batteries - 480
> Strut Type Channel Raceway - 384
> Surface Metal Raceways - 386
> Surface Nonmetallic Raceways - 388
> Swimming Pools... - 680
> Switchboards, Switchgear & Panelboards - 408
> Switches - 404
> Technology Equipment, Information - 645
> Television Studios - 530
> Temporary Installations - 590
> Theaters - 520
> Transformers & Transformer Vaults (Including Secondary Ties) - 450
> Truck Parking Space Electrical Wiring Systems, Electrified - 626
> Tubular Covered Conductors - Type TCC Conductors - 369
> Type AC Cable - Armored Cable - 320
> Type EMT Tubing - ​Electrical Metallic Tubing - 358
> Type ENT Tubing - Electrical Nonmetallic Tubing - 362
> Type FC Cable - Flat Cable Assemblies - 322
> Type FMC Conduit - Flexible Metal Conduit - 348
> Type FMT Tubing - Flexible Metallic Tubing - 360
> Type HDPE Conduit - ​High Density Polyethylene Conduit - 353
> Type IBP Pipe - Insulated Bus Pipe - 369
> Type IGS Cable - Integrated Gas Spacer Cable - 326
> Type MI Conduit - Intermediate Metal Conduit - 324
> Type ITC Cable - ​Instrumentation Tray Cable - 335
> Type LFMC Conduit - Liquidtight Flexible Metal Conduit - 350
> Type LFNC Conduit - ​Liquidtight Flexible Nonmetallic Conduit - 356
> Type MC Cable- Metal Clad Cable - 330
> Type MI Cable - Mineral Insulated Metal Sheathed Cable - 332
> Type MN & NMC Cable- Nonmetallic Sheathed Cable - 334
> Type NUCC Conduit - Nonmetallic Underground Conduit with Conductors - 354
> Type P Cable - 337
> Type PVC Conduit - Rigid Polyvinyl Conduit - 352
> Type RMC Conduit - Rigid Metal Conduit - 344
> Type RTRC Conduit - ​Reinforced Thermosetting Resin Conduit - 355
> Type SE Cable - Service Entrance Cable - 338
> Type TC Cable - Power & Control Tray Cable - Type TC - 336
> Type TCC Conductors - Tubular Covered Conductors - 369
> Type UF Cable- Underground Feeder & Branch Circuit Cable -340
> Type USE Cable - Service Entrance Cable - 338
> Underfloor Raceways - 390
> Underground Feeder & Branch Circuit Cable - Type UF - 340
> Water , Natural & Artificially Made Bodies of Water - 682
> Welders, Electric - 630
> Wind Electric Systems - 694
> Wiring Methods & Materials - 300
> Wiring Methods & Materials Over 1K A/C - 305
> X-Ray Equipment - 660
> Zone 0, 1 & 2 Locations - 505
> Zone 20, 21 & 22 Locations - Combustible Dusts or Ignitable Fibers/Flyings - 506