Asbestos was once widely used in many building materials, such as insulation, ceiling tiles, flooring, and roofing materials, because the fibers are strong and fireproof.  It is estimated that asbestos was used in more than 3,000 products in the United States. However, the U.S. EPA decided that asbestos fibers can potentially cause lung cancer and other respiratory illnesses.

Many buildings in use today still contain asbestos.  Asbestos is only hazardous if the fibers become airborne and are inhaled into the lungs.  Materials that contain asbestos generally do not release asbestos fibers into the air unless they are removed or otherwise disturbed.  Any asbestos-containing material that can easily be crumbled by hand is potentially hazardous.  Likewise, any demolition or renovation activity that removes or damages asbestos-containing material can be hazardous if safety precautions are not taken to prevent the release of asbestos fibers.

As required by federal law, a written notice must be provided to the Bureau 10 days in advance of any demolition project within Hamilton County, even if no asbestos is believed to be present.  Some renovation projects also require written notice to the Bureau.  This notice allows the Asbestos Coordinator to inspect the project and ensure that any asbestos-containing material is discovered and handled properly.