Wiring should include
- single-pole switch
- three-way switch
- four-way switch.
IRC: Chapters 37, 38, 39, and 40 (https://codes.iccsafe.org/content/IRC2018P4) cover code requirements for residential wiring and installation.
Process/Skill Questions:
- What color is the neutral conductor?
- What is the purpose of the bare copper wire?
- What color is the switch leg on the single-pole switch?
- What are traveler wires?