Asbestos-Containing Materials (ACMs) become hazardous when asbestos fibers become airborne through damage or deterioration of the matrix material. Airborne fibers can enter the lungs and cause a number of respiratory related problems. As long as the asbestos fibers stay in-place they aren't hazardous.
There has been much hype regarding asbestos. Most of this has been generated by lawyers looking to assist victims in various class action settlements. These unfortunate victims had worked with asbestos on a daily basis. Casual asbestos exposure does not cause asbestos related diseases.
To make matters more complicated, in Virginia, there are five (5) governmental agencies that regulate asbestos. Each agency has its own set of rules. This makes life difficult for the construction industry.