Certificate of reoccupation

What the certificate certifies, and what it does not

I have sat across the table from buyers, landlords and headteachers holding a certificate of reoccupation as though it were a clean bill of health for the whole property. It is not, and it never was. It certifies a defined work area at a defined moment. Walk twenty feet down the corridor and the asbestos insulating board in the riser cupboard is exactly where it was on Monday.

The document sits at the end of the four-stage clearance procedure described in HSG248, the analysts’ guide published by HSE. For licensed work under the Control of Asbestos Regulations 2012, the clearance analyst should be independent of the licensed contractor carrying out the removal, and in practice that means an organisation accredited by UKAS as an inspection body for the work. If the same firm stripped the enclosure and signed the certificate, treat the document as worthless and say so early.

The four stages sitting behind the signature

Stage one is a preliminary check: is the job actually finished, is the enclosure still intact, are the waste routes clear, has the contractor left plant and sheeting behind. Stage two is the thorough visual inspection inside the enclosure, on hands and knees with a torch, and it is the stage that fails most often. Stage three is air monitoring, with the clearance indicator conventionally taken at 0.01 fibres per millilitre. That figure is an indicator that the procedure has worked, not a declaration of safety, and HSG248 is explicit that it should never be read as one. Stage four is the final assessment once the enclosure is dismantled, checking the surrounding area and the transit route.

The failures I see are dull and repetitive. Textured coating residue skimmed off the ceiling but left in the shadow behind pipe brackets. Debris in cable trays and above suspended ceiling grids that nobody lifted. Negative pressure units still running because someone wanted the air test to look tidy. In buildings from the 1960s to the mid 1980s, where AIB was used for ceiling tiles, soffits, panels and fire protection, the joints and fixings are where the dust hides. An analyst who completes stage two in ten minutes has not done stage two.

Reading a certificate you have been handed

Check that the premises, enclosure and work area on the certificate are the ones you care about, and that the boundary description matches the physical space rather than a floor number. Check the plan of work reference ties to the actual job. Check the dates and times run in the right order, because a stage three sample logged before the stage two inspection tells you the sequence was reversed. Check the analyst is named, that the accredited organisation is named, and that its scope covers clearance. You can confirm the accreditation directly with UKAS. Where a stage failed and was repeated, the record should say so. A certificate with no failures on a large soft strip is less reassuring than one that shows a failure, a reclean and a pass.

Keep it with the rest of the evidence

The certificate belongs with the plan of work, the waste consignment notes, the air monitoring results and the asbestos register for the building. It is project evidence, not management evidence. Your duty to manage under Regulation 4 continues the day after reoccupation for every material you did not remove, and the register should be updated to reflect what has gone. Filing the certificate and leaving the register describing the removed ceiling tiles as present in situ is a common and entirely avoidable mess, and it is usually discovered years later by a solicitor during a sale.