ADOPTS WITH AMENDMENTS:

NFPA 70, 2017

Heads up: There are no amended sections in this chapter.

ARTICLE 300 — GENERAL REQUIREMENTS FOR WIRING METHODS AND MATERIALS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 310 — CONDUCTORS FOR GENERAL WIRING

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 312CABINETS, CUTOUT BOXES, AND METER SOCKET ENCLOSURES

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 314OUTLET, DEVICE, PULL, AND JUNCTION BOXES; CONDUIT BODIES; FITTINGS; AND HANDHOLE ENCLOSURES

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 320 — ARMORED CABLE: TYPE AC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 322 — FLAT CABLE ASSEMBLIES: TYPE FC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 324 — FLAT CONDUCTOR CABLE: TYPE FCC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 326 — INTEGRATED GAS SPACER CABLE: TYPE IGS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 328 — MEDIUM VOLTAGE CABLE: TYPE MV

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 330 — METAL-CLAD CABLE: TYPE MC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 332 — MINERAL-INSULATED, METAL-SHEATHED CABLE: TYPE Ml

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 334NONMETALLIC-SHEATHED CABLE: TYPES NM, NMC, AND NMS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X
Adopt entire Article as amended (amended sections listed below) X X X
Adopt only those sections that are listed below
Article/Section
334.10(Note) X X
334.10(2)&(3) X

ARTICLE 336 — POWER AND CONTROL TRAY CABLE: TYPE TC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 338SERVICE-ENTRANCE CABLE: TYPES SE AND USE

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 340 — UNDERGROUND FEEDER AND BRANCH-CIRCUIT CABLE: TYPE UF

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 342 — INTERMEDIATE METAL CONDUIT: TYPE IMC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 344 — RIGID METAL CONDUIT:TYPE RMC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 348 — FLEXIBLE METAL CONDUIT: TYPE FMC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 350 — LIQUIDTIGHT FLEXIBLE METAL CONDUIT: TYPE LFMC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 352 — RIGID POLYVINYL CHLORIDE CONDUIT: TYPE PVC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 353 — HIGH DENSITY POLYETHYLENE CONDUIT: TYPE HDPE CONDUIT

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 354 — NONMETALLIC UNDERGROUND CONDUIT WITH CONDUCTORS: TYPE NUCC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 355 — REINFORCED THERMOSETTING RESIN CONDUIT: TYPE RTRC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 356 — LIQUIDTIGHT FLEXIBLE NONMETALLIC CONDUIT: TYPE LFNC

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 358 — ELECTRICAL METALLIC TUBING: TYPE EMT

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 360 — FLEXIBLE METALLIC TUBING: TYPE FMT

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 362 — ELECTRICAL NONMETALLIC TUBING: TYPE ENT

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below) X
Adopt only those sections that are listed below
Article/Section
362.10 X

ARTICLE 366 — AUXILLARY GUTTERS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 368 — BUSWAYS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 370 — CABLEBUS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 372 — CELLULAR CONCRETE FLOOR RACEWAYS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 374CELLULAR METAL FLOOR RACEWAYS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 376 — METAL WIREWAYS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 378 — NONMETALLIC WIREWAYS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 380MULTIOUTLET ASSEMBLY

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 382NONMETALLIC EXTENSIONS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 384 — STRUT-TYPE CHANNEL RACEWAY

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 386 — SURFACE METAL RACEWAYS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 388 — SURFACE NONMETALLIC RACEWAYS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 390 — UNDERFLOOR RACEWAYS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 392CABLE TRAYS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 393LOW VOLTAGE SUSPENDED CEILING POWER DISTRIBUTION SYSTEMS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 394CONCEALED KNOB-AND-TUBE WIRING

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below) X X
Adopt only those sections that are listed below
Article/Section
394.12 Exception X X

ARTICLE 396MESSENGER-SUPPORTED WIRING

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 398 — OPEN WIRING ON INSULATORS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

ARTICLE 399 — OUTDOOR OVERHEAD CONDUCTORS OVER 1000 VOLTS

Adopting Agency BSC BSC-CG SFM HCD DSA OSHPD DPH
1 2 AC SS SS/CC 1 1R 2 3 4 5
Adopt Entire Article X X X X X X X X X X X
Adopt entire Article as amended (amended sections listed below)
Adopt only those sections that are listed below
Article/Section

Part I General Requirements

This article covers general requirements for wiring methods and materials for all wiring installations unless modified by other articles in Chapter 3.
The provisions of this article are not intended to apply to the conductors that form an integral part of equipment, such as motors, controllers, motor control centers, or factory-assembled control equipment or listed utilization equipment.
Metric designators and trade sizes for conduit, tubing, and associated fittings and accessories shall be as designated in Table 300.1(C).

TABLE 300.1(C) Metric Designators and Trade Sizes

Metric Designator Trade Size
12 3/8
16 1/2
21 3/4
27 1
35 11/4
41 11/2
53 2
63 21/2
78 3
91 31/2
103 4
129 5
155 6
Note: The metric designators and trade sizes are for identification purposes only and are not actual dimensions.
Wiring methods specified in Chapter 3 shall be used for 1000 volts, nominal, or less where not specifically limited in some section of Chapter 3. They shall be permitted for over 1000 volts, nominal, where specifically permitted elsewhere in this Code.
Temperature limitation of conductors shall be in accordance with 310.15(A)(3).
Single conductors specified in Table 310.104(A) shall only be installed where part of a recognized wiring method of Chapter 3.

Exception: Individual conductors shall be permitted where installed as separate overhead conductors in accordance with 225.6.

All conductors of the same circuit and, where used, the grounded conductor and all equipment grounding conductors and bonding conductors shall be contained within the same raceway, auxiliary gutter, cable tray, cablebus assembly, trench, cable, or cord, unless otherwise permitted in accordance with 300.3(B)(1) through (B)(4).
Conductors shall be permitted to be run in parallel in accordance with the provisions of 310.10(H). The requirement to run all circuit conductors within the same raceway, auxiliary gutter, cable tray, trench, cable, or cord shall apply separately to each portion of the paralleled installation, and the equipment grounding conductors shall comply with the provisions of 250.122. Parallel runs in cable tray shall comply with the provisions of 392.20(C).

Exception: Conductors installed in nonmetallic raceways run underground shall be permitted to be arranged as isolated phase, neutral, and grounded conductor installations. The raceways shall be installed in close proximity, and the