XLI 9178 - OSHA 30 Construction Industry 30 Contact Hours (Offered as needed) OSHA 30-Hour Training course for Construction teach health and safety awareness by helping supervisors and workers reduce the risk of workplace hazards. This course also describes the QC/QA system successfully used by Corps of Engineers and NAVFAC. Concepts are increasingly being adopted by state agencies, public authorities and other local public sector owners. It details planning concepts, which are prevention-oriented to reduce tear-out, improve quality and improve schedule.