A contractor is removing 400 square feet of vinyl floor tiles installed in 1975. The tiles test positive for asbestos. What is required under Cal/OSHA?
Correct Answer
D) Notification to Cal/OSHA 10 days before work begins
Cal/OSHA requires 10-day advance notification for asbestos removal projects exceeding 100 square feet of surface material.
Why This Is the Correct Answer
Cal/OSHA requires contractors to notify Cal/OSHA at least 10 working days before beginning any asbestos-related work that involves removing more than 100 square feet of asbestos-containing material. Since 400 square feet exceeds the 100-square-foot threshold, the 10-day advance notification to Cal/OSHA is a mandatory prerequisite before work begins.
Why the Other Options Are Wrong
Option A: Wet removal methods and respiratory protection
Wet removal methods and respiratory protection are indeed required during asbestos abatement, but they are not the single most critical initial requirement asked in this question. The 10-day pre-notification to Cal/OSHA must occur before any work starts β making it the foundational requirement. Wet methods and PPE are required during removal, but notification precedes everything.
Option B: No special requirements for small amounts
There are no 'small amount' exemptions from Cal/OSHA asbestos requirements when material tests positive. Any disturbing of asbestos-containing material above the regulatory threshold requires notification, trained workers, and proper procedures. The 100 sq ft threshold triggers notification β 400 sq ft clearly exceeds it.
Option C: Complete enclosure and negative air pressure
Complete enclosure and negative air pressure are required for certain high-risk asbestos operations (like Class I friable asbestos work), but vinyl floor tiles that test positive are typically addressed as Class II asbestos-containing material. The question asks what is 'required,' and the most foundational requirement is the 10-day notification β not full containment for this scenario.
Memory Technique
'10 days before, 100 sq ft is the door.' More than 100 sq ft of asbestos-containing material = notify Cal/OSHA 10 working days in advance. No exceptions, no shortcuts.
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