BX (Armor-Clad Cable)
  1. Stapled minimum every 4-1/2 ft. and within 12" of boxes. NEC 333-7.

  2. Provide insulated bushing at terminations. NEC 333-9.

  3. Nail plate required where cable is less than 1-1/4" from stud face. NEC 300-4(a)

  4. Underside of joists: Staple at each joist. NEC 333-11.

  5. In access attic guard strip if exposed less than 6 ft. from scuttle. NEC 333-12(a).