Class 1 work is defined by which characteristics?

Class 1 work is defined by which characteristics?

• A. A small job that fits into a glove bag
• B. Work involving encapsulation of ACM
• C. A large job that cannot fit into a 1 glove bag and involves removal of TSI, surfacing, or PACM
• D. Custodial tasks around nonfriable ACM

Answer: (C)

Class I work is defined by removing friable asbestos-containing materials in quantities and ways that would release a lot of fibers if disturbed. Materials like thermal system insulation, surfacing, and PACM fall into this category. The key factor is the scale and friability: when the job is large enough that it cannot fit into a single glove bag, it requires full containment with controlled access, negative air pressure, and proper disposal as asbestos waste. This reflects the highest level of control due to the greater risk of fiber release. Encapsulation is a sealing method rather than removal, so it isn’t Class I. Custodial tasks around nonfriable ACM fall under a different class, and small removals that fit into a glove bag describe a much smaller scope than Class I.

Class I work is defined by removing friable asbestos-containing materials in quantities and ways that would release a lot of fibers if disturbed. Materials like thermal system insulation, surfacing, and PACM fall into this category. The key factor is the scale and friability: when the job is large enough that it cannot fit into a single glove bag, it requires full containment with controlled access, negative air pressure, and proper disposal as asbestos waste. This reflects the highest level of control due to the greater risk of fiber release.

Encapsulation is a sealing method rather than removal, so it isn’t Class I. Custodial tasks around nonfriable ACM fall under a different class, and small removals that fit into a glove bag describe a much smaller scope than Class I.