Which NEC article covers general wiring methods?

• A. Article 430.
• B. Article 250.
• C. Article 300.
• D. Article 210.

Answer: (C)

General wiring methods are addressed in the NEC as the set of baseline rules for how conductors, cables, raceways, and boxes are installed throughout a building. This article defines how wiring should be routed, supported, and protected, and it covers practical details like clearance, fill, and separation from other systems. It provides the overarching guidance that applies no matter what specific equipment or system is involved.

That’s why it’s the best answer: it governs the fundamental way wiring is laid out and installed across the entire electrical system. Other articles focus on particular areas—such as motors and motor circuits, grounding and bonding, or branch circuits—so they aren’t the general wiring methods.