Requirements for Demolition of Hazardous Asbestos Materials

The Department of Labor and Industries (L&I) has previously reviewed the application of demolition requirements in WAC 296-155-775 as they apply to the removal of hazardous asbestos-containing materials before beginning demolition activities. What follows are the details of that review.

Introduction and Overview

WAC 296-155-775(9) includes specific requirements for asbestos and other hazardous materials present at the work site. These substances must be tested and removed or purged before demolition begins, the objective being to eliminate the hazard prior to demolition. In defining demolition, WAC 296-62-07703 defines demolition and refers to WAC 296-155-775(9) to indicate "where feasible, asbestos containing materials shall be removed from all structures prior to commencement of demolition." In situations where intact flooring and roofing materials are the only asbestos-containing materials, it has not always been clear whether asbestos removal prior to demolition or demolition in place will generate greater airborne exposure to asbestos fibers. As a result WISHA Interim Memorandum #99-1-C was developed to address the issue and provide guidance as to when materials can be demolished in place.

Courtesy of WISHA