Asbestos Certification (ASB) · Lesson 3 of 6

Class I to IV Asbestos Work, Training Hours, and the Competent Person

"Class I to IV Asbestos Work, Training Hours, and the Competent Person" is lesson 3 of 6 in the Asbestos Certification (ASB) Learning Hub. It opens with "The Four Classes of Work" and works through 5 short steps, then a worked example you can check yourself against.

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Steps in this lesson

  1. The Four Classes of Work
  2. Who Must Be Trained, and When
  3. Minimum Course Lengths by Class
  4. The Competent Person and Their Training
  5. What the Competent Person Must Do on Site

The worked example in the course applies this lesson to a realistic job in 5 steps, from "Set the minimum course for each class" through "Assign the competent person".

What you'll be able to do

  • Explain the main idea of "Class I to IV Asbestos Work, Training Hours, and the Competent Person" in plain language you can use on the exam.
  • Apply this step with confidence: "Minimum Course Lengths by Class".
  • Apply this step with confidence: "The Competent Person and Their Training".
  • Apply this step with confidence: "What the Competent Person Must Do on Site".
  • Test yourself on the worked example and the quick-check quiz inside the classroom.
Four Classes: 16 + 32 + 2 = 50 Minimum Training HoursCLASSWORK (1529(b))MINIMUM TRAININGTHIS CREWCLASS IRemoval of TSI and surfacingACM and PACM (boiler pipes)EPA MAP workercourse (k)(9)(C)Class I crewnot in the totalCLASS IIRemoval of other ACM: vinylfloor tile and masticAt least 8 hours,hands-on (k)(9)(D)12 workers2 x 8 = 16 hoursCLASS IIIRepair or maintenance likelyto disturb ACM (pipe valve)At least 16 hours,hands-on (k)(9)(E)2 workers2 x 16 = 32 hoursCLASS IVContact without disturbing;clean up dust and debrisAt least 2 hours(k)(9)(F)1 custodian1 x 2 = 2 hours* Indoor Class II with no negative exposure assessment needs critical barriers: MAP-equivalent course insteadMinimum course hours for the Class II, III and IV workers16 + 32 + 2 = 50 hoursClass I: the competent person inspects at least once each work shiftCompetent person: EPA MAP supervisor course for Class I and II (o)(4)(A)Training is at no cost to workers, before assignment, and at least annually (k)(9)Registration-level work: a Division-approved training provider (k)(9)(B)Source: 8 CCR 1529(b), (e)(1), (g)(7)(B), (k)(9), (o)(3)-(4); compare 29 CFR 1926.1101(k)(9), (o)CC
The diagram for this lesson, exactly as it appears in the Learning Hub.

The first steps of this lesson

Step 1: The Four Classes of Work

Section 1529(b) sorts asbestos work into four classes. Class I is removal of thermal system insulation (TSI) and surfacing ACM and PACM. Class II is removal of ACM that is not TSI or surfacing, for example asbestos-containing wallboard, floor tile and sheeting, roofing and siding shingles, and construction mastics. Class III is repair and maintenance where ACM, including TSI, surfacing ACM and PACM, is likely to be disturbed. Class IV is maintenance and custodial work where employees contact but do not disturb ACM or PACM, and clean-up of dust, waste and debris from Class I, II and III work. Class I, II and III work must be done inside a regulated area (1529(e)(1)).

Step 2: Who Must Be Trained, and When

Section 1529(k)(9)(A)-(B) requires the employer to train, at no cost to the employee, everyone likely to be exposed above a PEL and everyone doing Class I through IV work. Training comes before or at the time of initial assignment and at least annually after that. Employees doing asbestos-related work that requires registration under 341.6 must be trained and certified by a Division-approved training provider. The training must be understandable to the worker and must cover the ten topics of 1529(k)(9)(H), including health effects, the smoking and lung cancer link, respirators, medical surveillance, and the meaning of signs and labels.

The remaining 3 steps, the worked example and the quiz are in the course. This is a preview. The full lesson, with the step-by-step explanations, a worked example and a quick-check quiz, is inside the classroom.

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