Ключевые слова: building, catering, caution, clothing, compulsory, conservation, construction, convention, engineering, environment, environmental, faces, garments, health, healthy, hygiene, hygienic, icon, image, industry, law, mandatory, notice, obligatory, people, policy, precaution, precautionary, preservation, preventative, procedure, protect, protection, protective, recycle, recycling, regulation, regulatory, requirement, rule, safe, safeguard, safety, security, sign, signage, symbol, warning, wellbeing,