I just got this info from a contractor friend that does roofing.This will apply to all trades sec 20.112 a pre-1990 house/building that is to be demolished or renovated.Must have an risk assessment and asbestos survey done before conducting any work.Any thoughts on this new requirement?some

potential sources of asbestos are recessed lighting,range hoods,insulation on knob and tube wiring,outlets and switch boxs,light fixtures and main panel and fuse boxs.Canada mortgage and housing is involved with this program