employers and employees. Occupational health and safety system arranging, maintenance. Occupational risk, (risk) assessment, measurements. Document (instructions) development. Accident and occupational disease investigations. Occupational physician. Occupational physician. Work environment internal audit planning, implementation, examining and improving. Labour protection, safety, fire safety, electrical safety, (instructions) briefing. Civil protection, civil defense plans. Labor protection documentation: work register, position, profession descriptions, evacuation plans. First-aid kits. Informative labels. Competent institution. Fire safety alarms, fire alarms, sale of fire-extinguishers. Fire extinguisher refilling, refilling, filling. Fire extinguishers, fire extinguisher. Occupational safety on the construction site, assessment of workplace risks, work environment risks. Work safety protection. Work safety in company, roof work safety, work safety and fire safety, work safety in electrical safety, work safety roof, work environment internal monitoring. Labor protection in Latvia. Occupational health and safety specialists, senior occupational health specialist, competent specialists in occupational health and safety. Smoke detectors. Practical training in fire fighting. Practical training in evacuation of people from public buildings. Evacuation training. Work safety signs. Occupational safety briefing. Work security instructions. Fluorescent signs, stickers. Reflective signs. Work safety instructions, briefings.