Air Sampling for Asbestos and MMMF and Requirements for a Certificate of Reoccupation Following Clearance of Asbestos RP404

The RP404 Refresher complies with the requirements outlined in the Control of Asbestos Regulations (CAR) 2012, which states that workers who undertake non-licensed asbestos work should have annual refresher training. HSE classes asbestos analysts and surveyors as non-licensed workers. The requirement for yearly refresher training is also supported by HSE guidance documents HSG264 Asbestos: The survey guide and HSG248 Asbestos: the analysts’ guide for sampling, analysis and clearance procedures, along with UKAS publication LAB 30. 

The RP404 Refresher has been specially designed to meet your needs by refreshing your learning of topics that you find the most challenging. The course will also bring you up-to-date on any changes in asbestos analysis legislation over the last 12 months, and refresh your learning of best working practice for air sampling and site clearance inspections. Those who attend the course will receive a BOHS-branded certificate that can be displayed in their workplace as evidence of completing refresher training. 

Who is it for?

The course is suitable for anyone who:  

  • Undertakes clearance testing, air sampling and fibre counting as part of their work 
  • Issues certificates of reoccupation following asbestos clearance procedures 

How is it delivered?

The RP404 Refresher course runs typically over one day and includes at least six hours of teaching. 

The course can be delivered more flexibly, such as an evening or part-day course, but should still include six hours of teaching. 

Modules / Learning objectives

Overall Objective

To revise and update your knowledge of air sampling and clearance procedures, including the provisions for issuing certification for reoccupation. 


  1. Needs analysis 
  2. Legislative requirements  
  3. Preparation for asbestos removal or remediation work  
  4. Four Stage Clearance Procedure  
  5. Optional topics  
    • Health effects of asbestos  
    • Air sampling methods for asbestos  
    • Fibre counting
  6. Conclusion/assessment 


No assessment is necessary. 


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