The SSSTS Refresher (SSSTS-R) is a CITB-accredited course for anyone who has already completed the Site Supervision Safety Training Scheme and needs to renew their certificate. Delivered online in a single day by a CITB-qualified instructor, it brings your site supervision knowledge back up to date without the need to travel to a classroom. The course revisits all five modules of the full SSSTS: legal responsibilities and management, health and welfare, general site safety, high-risk activities and environmental awareness. Assessment is by an exam of 22 multiple-choice questions, with a minimum pass mark of 80%.