When the department finds that an emergency exists requiring immediate action to protect occupational or public health and safety, the department shall issue an order, with or without notice or hearing, reciting the existence of the emergency and providing for the protection of public health and safety. Notwithstanding this act or the administrative procedures act of 1969, the order shall be effective immediately. A person to whom the order is directed shall comply therewith immediately but on request to the department shall be granted a hearing within 15 days. On the basis of the hearing, the emergency order shall be continued, modified, or revoked within 30 days after the hearing.