Re: Emergency egress lighting remote heads
look in chapter 3 of the NEC.
it's there just like it has always been.
along with tons of other wiring methods.
Article 320 Armored Cable: Type AC
Article 322 Flat Cable Assemblies: Type FC
Article 324 Flat Conductor Cable: Type FCC
Article 326 Integrated Gas Spacer Cable: Type IGS
Article 328 Medium Voltage Cable: Type MV
Article 330 Metal-Clad Cable: Type MC
Article 332 Mineral-Insulated, Metal-Sheathed Cable: Type MI
Article 334 Nonmetallic-Sheathed Cable: Types NM, NMC, and NMS
Article 336 Power and Control Tray Cable: Type TC
Article 338 Service-Entrance Cable: Types SE and USE
Article 340 Underground Feeder and Branch-Circuit Cable: Type UF
Article 342 Intermediate Metal Conduit: Type IMC
Article 344 Rigid Metal Conduit: Type RMC
Article 348 Flexible Metal Conduit: Type FMC
Article 350 Liquidtight Flexible Metal Conduit: Type LFMC
Article 352 Rigid Nonmetallic Conduit: Type RNC
Article 353 High Density Polyethylene Conduit: Type HDPE Conduit
Article 354 Nonmetallic Underground Conduit with Conductors: Type NUCC
Article 356 Liquidtight Flexible Nonmetallic Conduit: Type LFNC
Article 358 Electrical Metallic Tubing: Type EMT
Article 360 Flexible Metallic Tubing: Type FMT
Article 362 Electrical Nonmetallic Tubing: Type ENT
ABOVE REFRENCED SECTIONS are from 2005 NEC