Certified Occupational Safety Specialist (COSS) is a training program designed by safety professionals for the entry level person, or for the experienced safety person who needs a refresher on safety. The unique curriculum-based program builds a solid foundation in both General Industry (CFR 1910) and Construction (CFR 1926) knowledge. Its main objective is to equip employees who have safety and health responsibilities with the core competencies they must master to be successful in occupational safety and health.