HSE Report: Four-Stage Clearance Findings
New Research on Four-Stage Clearances Highlights Key Challenges in Asbestos Management
A recent study published by the Health & Safety Executive (HSE) sheds light on the effectiveness of witnessed four-stage clearances (4SC) following licensed asbestos removal. The report, titled RR1218: The Effectiveness of Witnessed Four-Stage Clearances Following Licensed Asbestos Removal, has important implications for asbestos removal contractors, including Enviro-Safe, as we continue to prioritise compliance with HSE guidance and best practices.
The importation and use of asbestos in Great Britain were banned in 1999. However, asbestos still lingers in many buildings constructed or refurbished before 2000, necessitating its safe removal as part of ongoing risk management. Only HSE-licensed asbestos removal contractors (LARCs), such as Enviro-Safe, are authorised to carry out higher-risk asbestos removal work. To ensure safe reoccupation of affected areas, accredited 4SC organisations conduct detailed assessments and issue Certificates for Reoccupation (CfR).
Key Findings from the Research
The HSE's research, conducted at eight licensed asbestos removal sites between 2016 and 2019, assessed the work practices of 4SC analysts and compliance with HSE guidance (HSG248, 2005). Key findings include:
- Issuance of Certificates for Reoccupation: CfRs were issued at all observed sites, but some certificates were found to lack clarity, unambiguity, and accuracy.
- Improvements in the 4SC Process: Compared to previous studies, the application of the 4SC process showed improvements, with more failures being correctly identified.
- Integration of Recommendations: HSE recommendations from previous work (HSE 2018) were observed to be integrated into practices at five of the eight sites.
- Reassurance Air Monitoring: Elevated fibre concentrations were identified during reassurance air monitoring by HSE scientists after stage 3. This step, although optional in current guidance, was not conducted by any 4SC analysts.
- Non-Compliance with HSE Guidance: Several instances of non-compliance with HSG248 guidance were noted, including:
- Inappropriate selection and use of respiratory protective equipment (RPE).
- LARCs not undertaking additional cleaning, with analysts remaining in the enclosure.
- Dust disturbance activities being conducted improperly.
Impact on Enviro-Safe’s Work
The findings highlight both progress and challenges in the 4SC process, reaffirming the critical need for strict adherence to HSE guidance to ensure public safety. At Enviro-Safe, we are committed to integrating the latest research and HSE recommendations into our practices. This study reinforces our focus on:
- Enhancing Compliance: By meticulously following HSG248 and ensuring all aspects of the 4SC process are conducted with precision, we aim to meet the highest safety standards.
- Improved Certification Practices: Ensuring all Certificates for Reoccupation are clear, unambiguous, and accurate, providing peace of mind to our clients.
- Continuous Training: Regular training for our teams to stay updated on best practices, particularly in the selection and use of RPE, proper cleaning protocols, and safe dust disturbance methods.
- Optional Reassurance Air Monitoring: Exploring the inclusion of optional reassurance air monitoring in our procedures to offer an added layer of safety assurance.
Commitment to Excellence
The findings from this report underscore the importance of vigilance and constant improvement in asbestos management. Enviro-Safe remains dedicated to delivering safe and reliable asbestos removal services, ensuring the wellbeing of building occupants, contractors, and the broader community.
For more information on how Enviro-Safe can assist with licensed asbestos removal and compliance with HSE standards, get in touch with us today.