Thanx for the replies guys...
George Little...Hello...the ceilings I'm refering to would be suspended grid type with removeable 2x4 tiles.
"Open runs" of cable to me would imply not concealed or not accessible. A removeable ceiling tile in a suspended ceiling would make the wiring above an "open run" in my opinion.
gfretwell...how are you...this is the part I not sure of...does a typical 2x4 drop ceiling have a 15-minute finish fire rating? If so then NM would be allowed above in Massachusetts.
shortcircuit
