HSE requirements state that Asbestos Awareness Refresher training must be done at least once a year and delivered by a competent person in order for you to retain your asbestos certification.
HSE Guidance ACoP L143 suggests that Refresher training should be given at least every year and should be appropriate to the role being undertaken.
Asbestos Awareness Refresher training will ensure you are legally compliant, well informed and, most importantly, safe.