Is it code compliment to install NM in a drop ceiling in residential and staple it to the underside of the floor joists
300.4 (C)
(C) Cables Through Spaces Behind Panels Designed to Allow Access. Cables or raceway-type wiring methods, installed behind panels designed to allow access, shall be supported according to their applicable articles. Cable- or raceway-type wiring installed above suspended ceilings with lift-up panels must not be laid on the suspended ceiling so as to inhibit access. Such wiring is required to be supported according to
300.11(A),
300.23, and the requirements of the article applicable to the wiring method involved.
334.30 Securing and Supporting.
Nonmetallic-sheathed cable shall be supported and secured by staples, cable ties, straps, hangers, or similar fittings designed and installed so as not to damage the cable, at intervals not exceeding 1.4 m (4? ft) and within 300 mm (12 in.) of every outlet box, junction box, cabinet, or fitting. Flat cables shall not be stapled on edge.
Sections of cable protected from physical damage by raceway shall not be required to be secured within the raceway.