Требуемый правилами или законом.
Required by rules or law.
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See how the word “обязательный” is used in sentences
На площадке каски обязательны. — Helmets are obligatory on site.
Обязательно ли обучение для новых сотрудников? — Is the training obligatory for new staff?
В прошлом месяце они отменили обязательный сбор. — They removed the obligatory fee last month.
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