A renovation project involves removing 150 square feet of asbestos floor tiles. What class of asbestos work does this represent under Cal/OSHA regulations?
Correct Answer
A) Class II
Cal/OSHA Section 1529 defines Class II asbestos work as removal of asbestos-containing floor tile, ceiling tile, roofing, and siding materials.
Why This Is the Correct Answer
Cal/OSHA Section 1529 defines Class II asbestos work as the removal of asbestos-containing materials (ACM) that are not thermal system insulation or surfacing ACM — including floor tiles, ceiling tiles, roofing shingles, and siding. Removing floor tiles falls squarely within Class II.
Why the Other Options Are Wrong
Option B: Class I
Class I is the highest-risk category covering removal of thermal system insulation (pipe and boiler insulation) and surfacing ACM (sprayed-on fireproofing, acoustical plaster). Floor tile removal is less hazardous and classified as Class II, not Class I.
Option C: Class IV
Class IV covers custodial and maintenance work that disturbs ACM but is not removal work — such as cleaning up debris or working near but not removing asbestos materials. Active removal of floor tiles is Class II.
Option D: Class III
Class III covers repair and maintenance that may disturb ACM — for example, drilling through a wall that contains asbestos. Intentional removal of identified asbestos floor tiles is more specifically classified as Class II.
Memory Technique
Memorize the class hierarchy by material type: Class I = insulation and sprayed-on ACM (most dangerous), Class II = tiles/roofing/siding removal, Class III = repair/maintenance that disturbs ACM, Class IV = custodial cleanup. Floors and tiles = Class II.
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