Requirements of a class II Asbestos Operation

The Washington Industrial Safety and Health Act staff must enforce the requirements of a class II asbestos operation in relation to the use of a mechanically-propelled stationary flat blade (such as that described above) in the removal of vinyl asbestos floor tile and mastic. If these requirements are met, the manufacturer's recommendations are followed, and no significant exposure is documented by the CSHO or consultant, the requirement for a negative pressure enclosure when engaged in mechanical asbestos removal must be treated as de minimis.

Courtesy of WISHA