Communications
Hazard Communication: Proper hazard communication and demarcation with warning signs containing specified language in areas that have exposures above the PEL/EL is necessary. The same hazard communication provisions will protect employees who perform housekeeping operations in all three industries covered by OSHA standards.

Housekeeping Employees: Housekeeping employees, regardless of industry designation, should know whether building components they maintain might expose them to asbestos. Employees who perform housekeeping activities during and after construction activities are covered by OSHA's asbestos construction standard, 29 CFR 1926.1101.
Building owners are often the only and/or best source of information concerning the presence of previously installed asbestos containing building materials. Therefore, they, along with employers of potentially exposed employees, must covey information and educate their employees.
Knowledge Check Choose the best answer for the question.
2-4. Who is often the only and best source of information concerning the presence of previously installed ACM?
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